WO2019240334A1 - Ultra-wideband radar transceiver for transmitting or receiving ultra-wideband impulse radar signal - Google Patents

Ultra-wideband radar transceiver for transmitting or receiving ultra-wideband impulse radar signal Download PDF

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Publication number
WO2019240334A1
WO2019240334A1 PCT/KR2018/012423 KR2018012423W WO2019240334A1 WO 2019240334 A1 WO2019240334 A1 WO 2019240334A1 KR 2018012423 W KR2018012423 W KR 2018012423W WO 2019240334 A1 WO2019240334 A1 WO 2019240334A1
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Prior art keywords
control signal
module
signal
center frequency
ultra
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PCT/KR2018/012423
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French (fr)
Korean (ko)
Inventor
김영환
페도토프드미트리
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유메인주식회사
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Publication of WO2019240334A1 publication Critical patent/WO2019240334A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • G01S7/034—Duplexers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/0209—Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawideband

Definitions

  • the present invention relates to an ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal, and more particularly, in accordance with a control signal processing process of a transmission / reception control signal generation module configured in the ultra-wideband radar transceiver.
  • the reception control signal RX is provided to the center frequency oscillation module, and after the reception control signal RX is provided, the sampling control signal is provided to the sampling module.
  • the ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal that can be measured up to the maximum delay time by increasing the set delay time for each process iteration to accurately measure the position of the object over the entire radar measurement section will be.
  • the radar is a device that detects the distance and direction of the target object using electromagnetic waves.
  • the pulse radar transmits a transmitting pulse at a repetitive frequency
  • the receiver receives and determines an echo signal that hits the target and returns to obtain information on the target.
  • the distance resolution is determined by the pulse width by determining the presence or absence of a pulse from one transmission pulse, there is a limitation in implementing a high resolution.
  • the conventional pulse radar it was common to receive and analyze all received signals in the first predetermined range.
  • the measurement range is adjusted in detail during operation to receive the received signal in the desired range. Only the ability to receive and analyze intensively is needed.
  • the bandwidth and the center frequency of the ultra-wideband impulse radar sensor proposed in the present invention are determined by the width of the transmission control signal TX and the oscillation frequency of the center frequency oscillation module 200, respectively.
  • a first object of the present invention is a transmission control signal TX according to a control signal processing procedure of a transmission / reception control signal generation module configured in an ultra-wideband radar transceiver.
  • the reception control signal RX is provided to the center frequency oscillation module, the reception control signal RX is provided, and then the sampling control signal is provided to the sampling module.
  • the second object of the present invention is to provide the transmission control signal TX to the center frequency oscillation module according to the control signal processing of the transmission / reception control signal generation module, and then, after the set delay time has elapsed, the reception control signal RX is centered. After providing the frequency oscillation module, and providing the sampling control signal to the sampling module after providing the reception control signal RX, the process of repeatedly providing the sampling control signal is repeated several times to obtain a sufficient reflection signal value.
  • the ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal
  • the antenna module (turn-on by the transmission control signal TX, and a wide band impulse signal having a bandwidth at turn-on by the transmission control signal TX to have a specific center frequency)
  • An antenna module 300 which transmits a wideband impulse signal having a predetermined bandwidth having a specific center frequency provided by the center frequency oscillation module 200 to the outside and receives reflected signals from the outside;
  • An ADC module 500 for converting the sampled signal into a digital signal
  • the transmission control signal TX is a signal having a magnitude to turn on the center frequency oscillation module 200 to operate in a transmission mode, and the reception control signal RX turns the center frequency oscillation module 200.
  • Transmission control signal (TX) according to the control signal processing of the transmission and reception control signal generation module configured in the ultra-wideband radar transceiver through the ultra-wideband radar transceiver for transmitting and receiving the ultra-wideband impulse radar signal according to the present invention having the above configuration and action, Is provided to the center frequency oscillation module, after the set delay time has elapsed, the reception control signal RX is provided to the center frequency oscillation module, the reception control signal RX is provided, and then the sampling control signal is provided to the sampling module.
  • TX Transmission control signal
  • the reception control signal (RX) is provided to the center frequency oscillation module.
  • TX transmission control signal
  • RX reception control signal
  • the ultra-wideband radar transceiver for transmitting and receiving the ultra-wideband impulse radar signal of the present invention has a simple structure and easy to control, it is a structure that is suitable to be implemented as an integrated circuit to provide the expandability that can be widely used as a sensor in various fields do.
  • FIG 1 is an overall configuration diagram of an ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing the detailed configuration.
  • FIG. 3 is a flowchart illustrating a control signal processing process performed by a transmission / reception control signal generation module 100 of an ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal according to an embodiment of the present invention.
  • FIG. 4 is a timing diagram of an ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal according to an embodiment of the present invention.
  • FIG. 5 is a diagram illustrating distance measurement for each step of an ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal according to an embodiment of the present invention.
  • Means for solving the problems of the present invention are as follows.
  • the ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal of the present invention the ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal of the present invention
  • the antenna module is turned on by the transmission control signal TX, and the wideband impulse signal having a predetermined bandwidth when turned on by the transmission control signal TX has a specific center frequency.
  • the reflection signal received from the antenna module 300 provided to the 300 and turned on by the reception control signal RX, and turned on by the reception control signal RX.
  • Center frequency oscillation module 200 for providing only a signal having a specific center frequency to the sampling module 400,
  • An antenna module 300 which transmits a wideband impulse signal having a predetermined bandwidth having a specific center frequency provided by the center frequency oscillation module 200 to the outside and receives reflected signals from the outside;
  • An ADC module 500 for converting the sampled signal into a digital signal
  • the transmission control signal TX is a signal having a magnitude to turn on the center frequency oscillation module 200 to operate in a transmission mode, and the reception control signal RX turns the center frequency oscillation module 200.
  • it characterized in that it further comprises a bias control module 700 to allow the center frequency oscillation module 200 to operate stably regardless of the temperature change.
  • the capacitor module (900, Cx) formed between the sampling module 400 and the ADC module 500 to store the signal values sampled by the sampling module 400 further After the signal value stored in the capacitor module (900, Cx) by the ADC module 500 is read, the capacitor module (900, Cx) by the CAP_Dchg signal of the transmission and reception control signal generation module 100 Is discharging.
  • control signal processing process performed by the transmission and reception control signal generation module 100 includes a process of performing the first step to the nth step
  • the transmission control signal TX which is a wideband impulse signal having a predetermined bandwidth, is provided to the center frequency oscillation module 200, and after the transmission control signal TX is provided, the transmission control signal TX has a predetermined bandwidth after the set first delay time? T1.
  • sampling module 400 And providing a sampling control signal to the sampling module 400 so that the sampling module 400 samples the predetermined time ⁇ st after the reception control signal RX is provided.
  • the transmission control signal TX which is a broadband impulse signal having a predetermined bandwidth, is provided to the center frequency oscillation module 200. After the transmission control signal TX is provided, the transmission control signal TX has a predetermined bandwidth after the set n-th delay time ⁇ tn. N-th step of providing the reception control signal RX, which is a broadband impulse signal, to the center frequency oscillation module 200;
  • reception control signal (RX) After the reception control signal (RX), and the sampling module 400 to provide a sampling control signal for sampling to the sampling module 400 for a predetermined predetermined time ( ⁇ st), and includes an n-2 step,
  • N is a value greater than or equal to 2 and less than or equal to N, wherein the control signal processing is performed from the first step to the Nth step.
  • N is a value obtained by dividing a detection distance that an ultra-wideband radar transceiver can measure by a basic unit distance
  • the basic unit distance is a unit distance value previously set by the user for distance measurement
  • ⁇ tn which is the set nth delay time, is (time taken for the impulse radar signal to be reflected and returned at the basic unit distance after being transmitted from the radar transceiver) ⁇ ,
  • the predetermined time ⁇ st set for the sampling may be a time set by a user in advance.
  • Each step from the first step to the Nth step is repeatedly performed as set number of repetitions N1, N2, .... NN, and the set number of repetitions N1, N2, .... NN are the same or different. It is characterized in that the value.
  • FIG. 1 is an overall configuration diagram of an ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal according to an embodiment of the present invention
  • Figure 2 is a block diagram showing a detailed configuration.
  • an ultra wideband radar transceiver for transmitting and receiving an ultra wide band impulse radar signal of the present invention is basically a transmission / reception control signal generation module 100, a center frequency oscillation module 200, an antenna module ( 300, the sampling module 400, the ADC module 500, and the signal processing module 600 are included.
  • the transmission and reception control signal generation module 100 provides a transmission control signal TX and a reception control signal RX, which are broadband impulse signals having a predetermined bandwidth, to the center frequency oscillation module 200, and provides a sampling control signal to the sampling module ( A control signal processing process provided at 400 is performed.
  • Broadband impulse signals with constant bandwidth generally refer to ultra wide-band signals with good transmission characteristics and resolution, with rise times and fall times of several tens of pico-seconds, and widths of hundreds of pico. It is characterized in that the pulse signal having seconds (pico-seconds).
  • the transmission control signal TX and the reception control signal RX which are broadband impulse signals having a predetermined bandwidth, are provided to the center frequency oscillation module 200, and then the sampling control signal is provided to the sampling module 400. Control signal processing is performed.
  • the transmission / reception control signal generation module 100 generates a transmission control signal TX, which is a broadband impulse signal having a predetermined bandwidth, and provides the transmission control signal TX to the center frequency oscillation module 200.
  • the transmission control signal is provided to the collector of the transistor 210 constituting the center frequency oscillation module 200, the transistor 210 is turned on and the oscillation circuit 220 constituting the center frequency oscillation module 200. ) Produces a wideband impulse signal with a specific center frequency.
  • the bandwidth and the center frequency of the ultra-wideband impulse signal are determined by the width of the transmission control signal TX and the oscillation frequency of the center frequency oscillation module 200, respectively.
  • the broadband impulse signal having a predetermined bandwidth having a specific center frequency generated is provided to the antenna module 300.
  • the transmission / reception control signal generation module 100 provides the reception control signal RX to the center frequency oscillation module 200.
  • the transmission / reception control signal generation module 100 provides the transmission control signal TX at each step of the control signal processing process performed by the transmission / reception control signal generation module 100 and then receives the reception control signal RX as the center frequency.
  • the delay time until the oscillation module 200 is provided is different.
  • the transmission control signal TX provided to the center frequency oscillation module is a signal having a size to turn on the center frequency oscillation module 200 to operate in a transmission mode
  • the reception control signal RX is a center frequency
  • the oscillation module 200 is a signal having a magnitude that is turned on to operate in a reception mode and has a smaller size than the transmission control signal TX.
  • the center frequency oscillation module 200 is turned on by the transmission control signal TX, and specifies a wideband impulse signal having a bandwidth when turned on by the transmission control signal TX.
  • the antenna module 300 is provided to the antenna module 300 to have a center frequency, and is turned on by the reception control signal RX, and is turned on by the reception control signal RX. Only signals having a specific center frequency (meaning the center frequency of the transmission impulse radar signal) among the reflected signals received at 300 are provided to the sampling module 400.
  • the center frequency oscillation module 200 when the transmission control signal is transmitted to the collector of the transistor 210 through the impedance element L2, the center frequency oscillation module 200 is turned on and the collector of the transistor is turned on.
  • the center frequency oscillation module 200 generates a wideband impulse signal having a specific center frequency as an oscillation frequency by the transmission control signal applied to the oscillation frequency.
  • the wideband impulse signal having a predetermined bandwidth having a specific center frequency generated is provided to the antenna module 300 via the transistor 210, and has a predetermined bandwidth having a specific center frequency to the outside through the antenna module 300.
  • the band impulse signal is transmitted.
  • the center frequency oscillation module 200 is turned on by the reception control signal RX, and has a specific center frequency among the reflection signals received by the antenna module 300 (the center frequency of the transmission impulse radar signal). Meaning) only the signal having the) to the sampling module 400.
  • the center frequency oscillation module 200 is turned on and has a specific center frequency (transmission impulse radar signal) among the signals received from the antenna module. Only the signal having the center frequency used for transmission as the center frequency) is provided to the sampling module 400.
  • the antenna module 300 transmits a wideband impulse signal having a predetermined bandwidth having a specific center frequency provided by the center frequency oscillation module 200 to the outside and receives the reflected signals from the outside.
  • the reflection signal received from the outside includes a reflection signal of an impulse radar signal having a specific center frequency transmitted.
  • the sampling module 400 is a sampling provided by the transmission and reception control signal generation module 100 for a reflection signal having a specific center frequency provided by the center frequency oscillation module 200 among the reflection signals received by the antenna module 300. According to the control signal SMP_CTL, a sampling function is performed for a predetermined time ⁇ st.
  • the sampling control signal is provided from the transmission / reception control signal generation module 100 to perform sampling for 0.5 milliseconds.
  • the predetermined predetermined time ⁇ st which is a sampling time, is a time set by a user in advance.
  • the ADC module 500 converts the sampled signal into a digital signal
  • the signal processing module 600 receives a signal converted into a digital signal by the ADC module 500 and processes the signal according to a specific purpose. do.
  • ADC module 500 and the signal processing module 600 are a technology configured in a general ultra-wideband radar transceiver, detailed description thereof will be omitted.
  • the invention also features a bias control module 700, in accordance with additional aspects.
  • the bias control module 700 includes a bias compensator 710 including resistors R1 and R2 and a variable resistor Rt whose resistance value varies according to ambient temperature. It is done.
  • the center frequency oscillation module 200 needs a bias resistance value that can stably operate optimally.
  • the bias control module 700 is a constituent means for setting and controlling a bias resistance value in which the center frequency oscillation module 200 can operate stably and optimally.
  • the bias control module 700 has a bias resistance value (total resistance values of R1, R2, Rt) of the resistors R1, R2, and Rt constituting the bias compensator 710 as the center frequency oscillation module 200. ) Generates a bias control signal for setting control so that the bias resistance value can stably operate optimally, and the resistors R1, R2, and Rt constituting the bias compensation unit 710 by the generated bias control signal.
  • the bias resistance values are set and controlled.
  • Ambient temperature may be changed during operation at a specific bias resistance value (eg, Ra) set and controlled by the bias control module 700.
  • a specific bias resistance value eg, Ra
  • the resistors R1, which constitute the bias compensator 710 may be changed.
  • R2 is also affected by temperature, so that the bias resistance value (for example, Rb) is different from the specific bias resistance value (for example, Ra) that is set and controlled by the bias control module 700, so that the optimum frequency of the center frequency oscillation module 200 is obtained.
  • variable resistor Rt constituting the bias compensator 710 has a variable resistance value according to an ambient temperature so that the bias resistance values (total resistance values of R1, R2, and Rt) have a bias control module 700.
  • the bias resistance value is set and controlled by.
  • variable resistor varies its resistance value according to the ambient temperature so that the center frequency oscillation module 200 operates stably at a specific bias resistance value Ra set and controlled by the bias control module 700 regardless of temperature change. To do that.
  • the reception signal filtering module for filtering only the reflection signal having the specific center frequency among the reflection signals received through the antenna module 300 to provide to the center frequency oscillation module 200 Characterized in that it further comprises a (800).
  • the antenna module 300 receives not only the reflected signal of the impulse radar signal having a specific center frequency transmitted by the radar transceiver of the present invention but also other reflected signals, and among the received reflected signals, the specific transmitted by the radar transceiver of the present invention. Only the reflection signal of the impulse radar signal having the center frequency is provided to the center frequency oscillation module 200.
  • capacitor modules 900 and Cx formed between the sampling module 400 and the ADC module 500 for storing signal values sampled by the sampling module 400. After the signal value stored in the capacitor module (900, Cx) by the ADC module 500 is read, as shown in Figure 2 CAP_Dchg of the transmission and reception control signal generation module 100 Capacitor modules 900 and Cx are discharged by the signal.
  • the transmission control signal TX described in the present invention is a signal having a size to operate in the transmission mode by turning on the center frequency oscillation module 200
  • the reception control signal (RX) is the center frequency oscillation
  • the signal is a signal having a size that is turned on to operate in the reception mode by turning on the module 200, and has a smaller size than the transmission control signal TX.
  • the control signal provides the reception control signal RX to the center frequency oscillation module 200 and the sampling control signal to the sampling module 400. Processing will be performed, which will be described in detail with reference to FIGS. 3 to 5.
  • the control signal processing performed by the transmission / reception control signal generation module 100 includes a process of performing the first step S100 to the nth step SN00 as shown in FIG. 3.
  • the first step (S100) is the first step (S100).
  • the transmission control signal TX which is a wideband impulse signal having a predetermined bandwidth, is provided to the center frequency oscillation module 200, and after the transmission control signal TX is provided, the transmission control signal TX has a predetermined bandwidth after the set first delay time? T1.
  • the sampling module 400 After providing the reception control signal (RX), the sampling module 400 provides a sampling control signal for sampling to the sampling module 400 for a predetermined time ( ⁇ st), and includes a 1-2 step (S1200),
  • the transmission control signal TX which is a broadband impulse signal having a predetermined bandwidth, is provided to the center frequency oscillation module 200. After the transmission control signal TX is provided, the transmission control signal TX has a predetermined bandwidth after the set n-th delay time ⁇ tn. N-th step of providing the reception control signal RX, which is a broadband impulse signal, to the center frequency oscillation module 200;
  • the sampling module 400 After providing the reception control signal (RX), the sampling module 400 provides a sampling control signal to the sampling module 400 for sampling for a predetermined time ( ⁇ st) for a predetermined time step ( ⁇ 2).
  • N is a value greater than or equal to 2 and less than or equal to N, and the control signal processing performed by the transmission / reception control signal generation module 100 is performed from the first step S100 to the nth step SN00 as shown in FIG. It is characterized by.
  • N is a value obtained by dividing a detection distance that an ultra-wideband radar transceiver can measure by a basic unit distance
  • the basic unit distance is a unit distance value previously set by the user for distance measurement
  • the predetermined time ⁇ st set for the sampling is a time set by the user in advance
  • Each step from the first step to the Nth step is repeatedly performed as set number of repetitions N1, N2, .... NN, and the set number of repetitions N1, N2, .... NN are the same or different. It is characterized in that the value.
  • the transmission control signal TX which is a broadband impulse signal having a predetermined bandwidth
  • the transmission control signal TX is provided by the transmission and reception control signal generation module 100 to the center frequency oscillation module 200, and after the transmission control signal TX is provided, the first delay time ( ⁇ ).
  • the first-first step S110 of providing the reception control signal RX which is a broadband impulse signal having a predetermined bandwidth, to the center frequency oscillation module 200 is performed.
  • the transmission control signal generation module 100 Immediately after the reception control signal RX is provided, the transmission control signal generation module 100 provides the sampling module 400 with the sampling control signal for causing the sampling module 400 to sample for a predetermined time ⁇ st. -2 step S120 is performed.
  • the sampling time ⁇ st which is the sampling time, is a time that is arbitrarily set by a user.
  • the sampling module 400 samples only a predetermined time ⁇ st after a sampling control signal is received. .
  • the first step is repeatedly performed by N1 which is a preset number of times.
  • the first step is a process of transmitting a transmission impulse radar signal using an ultra-wideband radar transceiver, receiving and sampling a reflected signal reflected from an object at an initial basic unit distance, and N1 which is a predetermined number of times.
  • the reason to repeat as many times is to repeat by N1 to increase the accuracy of the measurement.
  • n is a value greater than or equal to 2 and less than or equal to N, and the control signal processing performed by the transmission / reception control signal generation module 100 of the present invention is performed from the first step to the Nth step. .
  • each step from the first step to the Nth step is repeatedly performed as set number of repetitions N1, N2, .... NN, and the set number of repetitions N1, N2, .... NN are the same or It is characterized by different values.
  • the nth step is a process for measuring the distance of the object existing in n ⁇ basic unit distance using an ultra-wideband radar transceiver, and repeating each step by a predetermined number of times N1, N2, .... NN The reason for this is to repeat the process to increase the accuracy of the distance measurement.
  • the basic unit distance is a distance set by the user as a unit distance set in advance in the radar transceiver for distance measurement as described above.
  • the second step S200 will be described.
  • the transmission control signal TX which is a broadband impulse signal having a predetermined bandwidth
  • the transmission control signal TX is provided by the transmission and reception control signal generation module 100 to the center frequency oscillation module 200, and after the transmission control signal TX is provided, the second delay time ( ⁇ ).
  • a second step S210 of providing a reception control signal RX, which is a broadband impulse signal having a predetermined bandwidth, to the center frequency oscillation module 200 is performed.
  • the transmission and reception control signal generation module 100 provides the sampling module 400 with a sampling control signal that causes the sampling module 400 to sample for a predetermined time ⁇ st. Step 2-2 is performed.
  • the sampling time ⁇ st which is the sampling time, is a time that is arbitrarily set by a user.
  • the sampling module 400 samples only a predetermined time ⁇ st after a sampling control signal is received. .
  • the second step is repeatedly performed by N2 which is a preset number of times.
  • the second step is a process of transmitting a transmission impulse radar signal using an ultra-wideband radar transceiver and receiving and sampling a reflected signal reflected from an object at a second basic unit distance, and the second step is N2 which is a predetermined number of times.
  • the reason for the repetition is to repeat by N2 to increase the accuracy of the measurement.
  • the transmission control signal TX which is a broadband impulse signal having a predetermined bandwidth
  • the transmission and reception control signal generation module 100 is provided by the transmission and reception control signal generation module 100 to the center frequency oscillation module 200, and after the transmission control signal TX is provided, the third delay time ( ⁇ ). t3) Step 3-1 (not shown) is performed to provide the reception control signal RX, which is a broadband impulse signal having a predetermined bandwidth, to the center frequency oscillation module 200.
  • the transmission and reception control signal generation module 100 provides the sampling module 400 with a sampling control signal that causes the sampling module 400 to sample for a predetermined time ⁇ st. Perform step 3-2 (not shown).
  • the sampling time ⁇ st which is the sampling time, is a time that is arbitrarily set by a user.
  • the sampling module 400 samples only a predetermined time ⁇ st after a sampling control signal is received. .
  • the third step is repeated as much as N3, which is a preset number.
  • the third step is a process of transmitting a transmission impulse radar signal by using an ultra-wideband radar transceiver and receiving and sampling a reflected signal reflected from an object at a third basic unit distance, and the third step is a predetermined number N3.
  • the reason for the repetition is to repeat by N3 to increase the accuracy of the measurement.
  • the nth delay time DELTA tn which is a time delay after the transmission control signal TX is provided to the center frequency oscillation module 200 after providing the transmission control signal TX in each step, is n ⁇ ⁇ t1. Relationship is established.
  • N is a value obtained by dividing a detection distance that an ultra-wideband radar transceiver can measure by a basic unit distance.
  • the first step N1 repeats ⁇ the second step N2 repeats ⁇ the third step N3 repeats ...
  • Conventional impulse radar periodically transmits an impulse signal for transmission, continuously receives and analyzes a reflected signal of the transmitted impulse signal, and thus, there has been an error in detecting an object due to distortion of the reflected signal, and a measurement range even during operation It could not provide the function that can be adjusted in detail and receive only the received signal in the desired range and analyze it intensively.
  • the present invention divides the total detection distance by the basic unit distances as shown in FIG. 5, and then repeats the first step by N1 to detect the distance of the object at the first fundamental short distance from the transceiver.
  • Sample the reflected signal by repeating the second step N2 to detect the distance of the object at the second fundamental unit distance, and N3 to detect the distance of the object at the third fundamental unit distance
  • Nth step NN By sampling the reflected received signal repeatedly as much as possible, and sampling the reflected received signal by repeating the Nth step NN to detect the distance of the object at the N-th basic unit distance, using a conventional impulse radar. It solves the distortion problem of object detection and finely adjusts the measuring range during operation to receive and analyze only the received signal of the desired range for intensive analysis. This provides the effect of accurately measuring the position of the object.
  • the above-described modules constituting the ultra-wideband radar transceiver are implemented on one board or chip, so that the ultra-wideband radar transceiver is formed in a board type or a chip type.
  • Transmission control signal (TX) according to the control signal processing of the transmission and reception control signal generation module configured in the ultra-wideband radar transceiver through the ultra-wideband radar transceiver for transmitting and receiving the ultra-wideband impulse radar signal according to the present invention having the above configuration and action, Is provided to the center frequency oscillation module, after the set delay time has elapsed, the reception control signal RX is provided to the center frequency oscillation module, the reception control signal RX is provided, and then the sampling control signal is provided to the sampling module.
  • TX Transmission control signal

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Abstract

The present invention relates to an ultra-wideband radar transceiver for transmitting or receiving an ultra-wideband impulse radar signal and, more specifically, to an ultra-wideband radar transceiver for transmitting or receiving an ultra-wideband impulse radar signal, in which: a transmission control signal (TX) is provided to a center frequency oscillation module according to a control signal processing procedure of a transmission/reception control signal generation module included in the ultra-wideband radar transceiver; after a configured delay time has elapsed, a reception control signal (RX) is provided to the center frequency oscillation module; and then after the reception control signal (RX) is provided, a procedure of providing a sampling control signal to a sampling module is iterated, wherein, by increasing the configured delay time at each iteration of the procedure, it is possible to perform measurement up to a maximum delay time so that a position of an object can be accurately measured over the entire radar measurement section.

Description

초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버Ultra-Wideband Radar Transceiver Transmits and Receives Ultra-Wide Impulse Radar Signals
본 발명은 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버에 관한 것으로서, 더욱 상세하게는 초광대역 레이더 트랜시버에 구성된 송수신제어신호발생모듈의 제어신호처리 과정에 따라, 송신제어신호(TX)를 중심주파수발진모듈에 제공한 후, 설정된 지연시간 경과 후, 수신제어신호(RX)를 중심주파수발진모듈에 제공하고, 수신제어신호(RX) 제공 후, 샘플링모듈로 샘플링제어신호를 제공하는 과정을 반복하되, 설정된 지연시간을 상기 과정 반복시마다 증가시킴으로써, 최대 지연시간까지 측정이 가능하여 전체 레이더 측정 구간에 대하여 물체의 위치를 정확하게 측정할 수 있는 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버에 관한 것이다.The present invention relates to an ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal, and more particularly, in accordance with a control signal processing process of a transmission / reception control signal generation module configured in the ultra-wideband radar transceiver. After providing the frequency oscillation module, after the set delay time has elapsed, the reception control signal RX is provided to the center frequency oscillation module, and after the reception control signal RX is provided, the sampling control signal is provided to the sampling module. However, the ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal that can be measured up to the maximum delay time by increasing the set delay time for each process iteration to accurately measure the position of the object over the entire radar measurement section will be.
레이더는 전자파를 사용하여 대상 물체의 거리 및 방향을 탐지하는 장비이며, 특히 펄스 레이더는 송신 펄스를 반복 주파수로 송신하여 목표물을 맞고 되돌아오는 에코신호를 수신기가 수신 및 판별하여 목표물의 정보를 얻는다.The radar is a device that detects the distance and direction of the target object using electromagnetic waves. In particular, the pulse radar transmits a transmitting pulse at a repetitive frequency, and the receiver receives and determines an echo signal that hits the target and returns to obtain information on the target.
종래의 펄스 레이더 수신기는 하나의 송신 펄스로부터 펄스의 존재 유무를 판단하여 펄스폭에 의하여 거리 해상도가 결정되므로, 높은 해상도 구현에 한계가 있다. In the conventional pulse radar receiver, since the distance resolution is determined by the pulse width by determining the presence or absence of a pulse from one transmission pulse, there is a limitation in implementing a high resolution.
물론, 종래의 펄스레이더 수신기법 중에는 다수의 송신 펄스를 수신하여 수신 펄스의 신호대 잡음지수(SNR)를 높이는 방법이 있으나, 이 역시도 높은 해상도를 구현하는 데에는 한계가 있다.Of course, in the conventional pulse radar receiver method, there is a method of increasing the signal-to-noise index (SNR) of the received pulse by receiving a plurality of transmit pulses, but this also has a limitation in implementing a high resolution.
또한, 종래의 펄스 레이더는 최초 정해진 전 범위의 수신 신호를 모두 받아 분석하는 것이 일반적이었으나, 특정 범위 내의 물체만을 집중적으로 탐지하고자 할 경우, 운영 중에도 측정 범위를 세부적으로 조정하여 목적하는 범위의 수신 신호만을 수신하여 집중적으로 분석할 수 있는 기능이 필요하다.In addition, in the conventional pulse radar, it was common to receive and analyze all received signals in the first predetermined range. However, when intensively detecting only objects within a specific range, the measurement range is adjusted in detail during operation to receive the received signal in the desired range. Only the ability to receive and analyze intensively is needed.
따라서, 본 발명의 경우에 상기한 종래의 문제점을 해결하기 위해 제안된 것으로서, 전체 탐지거리를 작은 단위(거리해상도)로 세부적으로 나누어 송신제어신호와 수신제어신호의 지연시간을 설정하고, 송신제어신호(TX)를 중심주파수발진모듈(200)에 제공한 후, 설정된 지연시간 경과 후, 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하는 과정을 반복하되, 상기 과정을 반복시마다 설정된 지연시간을 순차적으로 증가시키면서 레이더 센서의 전체 레이더 탐지거리 내에서 거리별 안테나를 통해 수신된 신호들 중 특정 중심주파수를 갖는 신호의 크기를 측정할 수 있는 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버를 제공하고자 하는 것이다.Therefore, in the case of the present invention, it has been proposed to solve the above-mentioned conventional problems, by dividing the entire detection distance into small units (distance resolution) in detail to set the delay time of the transmission control signal and the reception control signal, and to control the transmission. After providing the signal TX to the center frequency oscillation module 200, after the set delay time has elapsed, the process of providing the reception control signal RX to the center frequency oscillation module 200 is repeated, but the above process is repeated every time. Ultra-wideband transmitting and receiving an ultra-wideband impulse radar signal that can measure the magnitude of a signal having a specific center frequency among the signals received through the distance-specific antenna within the total radar detection distance of the radar sensor while sequentially increasing the set delay time To provide a radar transceiver.
또한, 본 발명에서 제안하는 초광대역 임펄스 레이다센서의 대역폭과 중심주파수는 각각 송신제어신호(TX)의 폭과 중심주파수발진모듈(200)의 발진 주파수에 의해 결정된다.In addition, the bandwidth and the center frequency of the ultra-wideband impulse radar sensor proposed in the present invention are determined by the width of the transmission control signal TX and the oscillation frequency of the center frequency oscillation module 200, respectively.
<선행기술문헌><Preceding technical literature>
대한민국등록특허번호 10-1239165호Korea Patent Registration No. 10-1239165
따라서 본 발명은 상기와 같은 종래 기술의 문제점을 감안하여 제안된 것으로서, 본 발명의 제1 목적은 초광대역 레이더 트랜시버에 구성된 송수신제어신호발생모듈의 제어신호처리 과정에 따라, 송신제어신호(TX)를 중심주파수발진모듈에 제공한 후, 설정된 지연시간 경과 후, 수신제어신호(RX)를 중심주파수발진모듈에 제공하고, 수신제어신호(RX) 제공 후, 샘플링모듈로 샘플링제어신호를 제공하는 과정을 반복하되, 설정된 지연시간을 상기 과정 반복시마다 증가시킴으로써, 최대 지연시간까지 측정이 가능하여 전체 레이더 측정 구간에 대하여 물체의 위치를 정확하게 측정할 수 있도록 하는데 있다.Therefore, the present invention has been proposed in view of the above-described problems of the prior art, and a first object of the present invention is a transmission control signal TX according to a control signal processing procedure of a transmission / reception control signal generation module configured in an ultra-wideband radar transceiver. Is provided to the center frequency oscillation module, after the set delay time has elapsed, the reception control signal RX is provided to the center frequency oscillation module, the reception control signal RX is provided, and then the sampling control signal is provided to the sampling module. By repeating, but by increasing the set delay time for each process iteration, it is possible to measure up to the maximum delay time to accurately measure the position of the object for the entire radar measurement section.
본 발명의 제2 목적은 송수신제어신호발생모듈의 제어신호처리 과정에 따라, 송신제어신호(TX)를 중심주파수발진모듈에 제공한 후, 설정된 지연시간 경과 후, 수신제어신호(RX)를 중심주파수발진모듈에 제공하고, 수신제어신호(RX) 제공 후, 샘플링모듈로 샘플링제어신호를 제공하는 과정을 수회 반복 측정함으로써, 충분한 반사신호 값을 획득하는데 있다.The second object of the present invention is to provide the transmission control signal TX to the center frequency oscillation module according to the control signal processing of the transmission / reception control signal generation module, and then, after the set delay time has elapsed, the reception control signal RX is centered. After providing the frequency oscillation module, and providing the sampling control signal to the sampling module after providing the reception control signal RX, the process of repeatedly providing the sampling control signal is repeated several times to obtain a sufficient reflection signal value.
본 발명이 해결하고자 하는 과제를 달성하기 위하여, 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버는,In order to achieve the problem to be solved by the present invention, the ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal,
일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)와 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하고, 샘플링제어신호를 샘플링모듈(400)로 제공하는 제어신호처리 과정을 수행하는 송수신제어신호발생모듈(100)과,A control signal processing process of providing a transmission control signal TX and a reception control signal RX, which are broadband impulse signals having a predetermined bandwidth, to the center frequency oscillation module 200 and providing a sampling control signal to the sampling module 400. Transmitting and receiving control signal generation module 100,
상기 송신제어신호(TX)에 의해 턴 온(turn-on)되고, 송신제어신호(TX)에 의한 턴 온(turn-on)시 대역폭을 갖는 광대역 임펄스 신호를 특정 중심주파수를 갖도록 하여 안테나모듈(300)에 제공하고, 수신제어신호(RX)에 의해 턴 온(turn-on)되고, 수신제어신호(RX)에 의해 턴 온(turn-on)시 안테나모듈(300)에서 수신된 반사신호들 중 특정 중심주파수를 갖는 신호만을 샘플링모듈(400)로 제공하는 중심주파수발진모듈(200)과,The antenna module (turn-on by the transmission control signal TX, and a wide band impulse signal having a bandwidth at turn-on by the transmission control signal TX to have a specific center frequency) The reflection signals received from the antenna module 300 provided to the antenna 300, turned on by the reception control signal RX, and turned on by the reception control signal RX. A center frequency oscillation module 200 for providing only a signal having a specific center frequency to the sampling module 400,
상기 중심주파수발진모듈(200)에서 제공된 특정 중심주파수를 갖는 일정 대역폭을 갖는 광대역 임펄스 신호를 외부로 송신하고, 외부로부터 반사신호들을 수신하는 안테나모듈(300)과,An antenna module 300 which transmits a wideband impulse signal having a predetermined bandwidth having a specific center frequency provided by the center frequency oscillation module 200 to the outside and receives reflected signals from the outside;
중심주파수발진모듈(200)에서 제공한 특정 중심주파수를 갖는 신호를 상기 샘플링제어신호에 따라 일정시간(△st) 동안 샘플링하는 샘플링모듈(400)과,A sampling module 400 for sampling a signal having a specific center frequency provided by the center frequency oscillation module 200 for a predetermined time Δst according to the sampling control signal;
샘플링된 신호를 디지털 신호로 변환하는 ADC모듈(500)과,An ADC module 500 for converting the sampled signal into a digital signal;
상기 ADC모듈(500)에 의해 디지털 신호로 변환된 신호를 처리하는 신호처리모듈(600)을 포함하여 구성되는 것을 특징으로 하며,Characterized in that it comprises a signal processing module 600 for processing a signal converted into a digital signal by the ADC module 500,
상기 송신제어신호(TX)는 중심주파수발진모듈(200)를 턴-온 시켜 송신모드로 동작하도록 하는 크기를 갖는 신호이고, 상기 수신제어신호(RX)는 중심주파수발진모듈(200)를 턴-온 시켜 수신모드로 동작시키도록 하는 크기를 갖는 신호로서 송신제어신호(TX)보다 작은 크기를 갖는 신호인 것을 특징으로 한다.The transmission control signal TX is a signal having a magnitude to turn on the center frequency oscillation module 200 to operate in a transmission mode, and the reception control signal RX turns the center frequency oscillation module 200. A signal having a size that is turned on to operate in a reception mode, the signal having a size smaller than that of the transmission control signal TX.
이상의 구성 및 작용을 지니는 본 발명에 따른 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버를 통해, 초광대역 레이더 트랜시버에 구성된 송수신제어신호발생모듈의 제어신호처리 과정에 따라, 송신제어신호(TX)를 중심주파수발진모듈에 제공한 후, 설정된 지연시간 경과 후, 수신제어신호(RX)를 중심주파수발진모듈에 제공하고, 수신제어신호(RX) 제공 후, 샘플링모듈로 샘플링제어신호를 제공하는 과정을 반복하되, 설정된 지연시간을 상기 과정 반복시마다 증가시킴으로써, 최대 지연시간까지 측정이 가능하여 전체 레이더 측정 구간에 대하여 물체의 위치를 정확하게 측정할 수 있는 효과를 발휘하게 된다.Transmission control signal (TX) according to the control signal processing of the transmission and reception control signal generation module configured in the ultra-wideband radar transceiver through the ultra-wideband radar transceiver for transmitting and receiving the ultra-wideband impulse radar signal according to the present invention having the above configuration and action, Is provided to the center frequency oscillation module, after the set delay time has elapsed, the reception control signal RX is provided to the center frequency oscillation module, the reception control signal RX is provided, and then the sampling control signal is provided to the sampling module. By repeating, but by increasing the set delay time for each process iteration, it is possible to measure up to the maximum delay time to achieve the effect of accurately measuring the position of the object for the entire radar measurement interval.
또한, 송수신제어신호발생모듈의 제어신호처리 과정에 따라, 송신제어신호(TX)를 중심주파수발진모듈에 제공한 후, 설정된 지연시간 경과 후, 수신제어신호(RX)를 중심주파수발진모듈에 제공하고, 수신제어신호(RX) 제공 후, 샘플링모듈로 샘플링제어신호를 제공하는 과정을 수회 반복 측정함으로써, 충분한 반사신호 값을 획득하여 이를 저장할 수 있도록 함으로써, 물체의 인식률을 증대시키는 효과를 발휘하게 된다.In addition, according to the control signal processing of the transmission and reception control signal generation module, after providing the transmission control signal (TX) to the center frequency oscillation module, after the set delay time elapses, the reception control signal (RX) is provided to the center frequency oscillation module In addition, by repeatedly measuring the process of providing the sampling control signal to the sampling module after providing the reception control signal RX, a sufficient reflection signal value can be obtained and stored, thereby increasing the recognition rate of the object. do.
또한, 본 발명의 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버는 구조가 간단하여 제어가 쉬어지며, 집적 회로로 구현하기가 적합한 구조로 다양한 분야의 센서로 널리 활용할 수 있는 확장성을 제공하게 된다.In addition, the ultra-wideband radar transceiver for transmitting and receiving the ultra-wideband impulse radar signal of the present invention has a simple structure and easy to control, it is a structure that is suitable to be implemented as an integrated circuit to provide the expandability that can be widely used as a sensor in various fields do.
도 1은 본 발명의 일 실시예에 따른 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버의 전체 구성도.1 is an overall configuration diagram of an ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal according to an embodiment of the present invention.
도 2는 세부 구성이 표시된 구성 블록도.2 is a block diagram showing the detailed configuration.
도 3은 본 발명의 일 실시예에 따른 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버의 송수신제어신호발생모듈(100)가 수행하는 제어신호처리 과정을 나타낸 흐름도.3 is a flowchart illustrating a control signal processing process performed by a transmission / reception control signal generation module 100 of an ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal according to an embodiment of the present invention.
도 4는 본 발명의 일 실시예에 따른 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버의 타이밍 다이어그램을 나타난 도면.4 is a timing diagram of an ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal according to an embodiment of the present invention.
도 5는 본 발명의 일 실시예에 따른 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버의 스텝별 거리측정을 나타낸 도면.5 is a diagram illustrating distance measurement for each step of an ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal according to an embodiment of the present invention.
<부호의 설명><Description of the code>
100 : 송수신제어신호발생모듈100: transmit / receive control signal generating module
200 : 중심주파수발진모듈200: center frequency oscillation module
300 : 안테나모듈300: antenna module
400 : 샘플링모듈400: sampling module
500 : ADC모듈500: ADC module
600 : 신호처리모듈600: signal processing module
700 : 바이어스제어모듈700: bias control module
800 : 수신신호필터링모듈800: received signal filtering module
900 : 캐패시터모듈900: capacitor module
이하의 내용은 단지 본 발명의 원리를 예시한다. 그러므로 당업자는 비록 본 명세서에 명확히 설명되거나 도시되지 않았지만, 본 발명의 원리를 구현하고 본 발명의 개념과 범위에 포함된 다양한 장치를 발명할 수 있는 것이다. The following merely illustrates the principles of the invention. Therefore, those skilled in the art, although not explicitly described or illustrated herein, can embody the principles of the present invention and invent various devices that fall within the spirit and scope of the present invention.
또한, 본 명세서에 열거된 모든 조건부 용어 및 실시 예들은 원칙적으로, 본 발명의 개념이 이해되도록 하기 위한 목적으로만 명백히 의도되고, 이와 같이 특별히 열거된 실시 예들 및 상태들에 제한적이지 않는 것으로 이해되어야 한다.In addition, all conditional terms and embodiments listed herein are in principle clearly intended to be understood only for the purpose of understanding the concept of the invention and are not to be limited to the specifically listed embodiments and states. do.
본 발명의 과제를 해결하기 위한 수단은 하기와 같다.Means for solving the problems of the present invention are as follows.
즉, 본 발명의 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버는, That is, the ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal of the present invention,
일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)와 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하고, 샘플링제어신호를 샘플링모듈(400)로 제공하는 제어신호처리 과정을 수행하는 송수신제어신호발생모듈(100)과,A control signal processing process of providing a transmission control signal TX and a reception control signal RX, which are broadband impulse signals having a predetermined bandwidth, to the center frequency oscillation module 200 and providing a sampling control signal to the sampling module 400. Transmitting and receiving control signal generation module 100,
상기 송신제어신호(TX)에 의해 턴 온(turn-on)되고, 송신제어신호(TX)에 의한 턴 온(turn-on)시 일정 대역폭을 갖는 광대역 임펄스 신호를 특정 중심주파수를 갖도록 하여 안테나모듈(300)에 제공하고, 수신제어신호(RX)에 의해 턴 온(turn-on)되고, 수신제어신호(RX)에 의해 턴 온(turn-on)시 안테나모듈(300)에서 수신된 반사신호들 중 특정 중심주파수를 갖는 신호만을 샘플링모듈(400)로 제공하는 중심주파수발진모듈(200)과,The antenna module is turned on by the transmission control signal TX, and the wideband impulse signal having a predetermined bandwidth when turned on by the transmission control signal TX has a specific center frequency. The reflection signal received from the antenna module 300 provided to the 300 and turned on by the reception control signal RX, and turned on by the reception control signal RX. Center frequency oscillation module 200 for providing only a signal having a specific center frequency to the sampling module 400,
상기 중심주파수발진모듈(200)에서 제공된 특정 중심주파수를 갖는 일정 대역폭을 갖는 광대역 임펄스 신호를 외부로 송신하고, 외부로부터 반사신호들을 수신하는 안테나모듈(300)과,An antenna module 300 which transmits a wideband impulse signal having a predetermined bandwidth having a specific center frequency provided by the center frequency oscillation module 200 to the outside and receives reflected signals from the outside;
중심주파수발진모듈(200)에서 제공한 특정 중심주파수를 갖는 신호를 상기 샘플링제어신호에 따라 일정시간(△st) 동안 샘플링하는 샘플링모듈(400)과,A sampling module 400 for sampling a signal having a specific center frequency provided by the center frequency oscillation module 200 for a predetermined time Δst according to the sampling control signal;
샘플링된 신호를 디지털 신호로 변환하는 ADC모듈(500)과,An ADC module 500 for converting the sampled signal into a digital signal;
상기 ADC모듈(500)에 의해 디지털 신호로 변환된 신호를 처리하는 신호처리모듈(600)을 포함하여 구성되는 것을 특징으로 하며,Characterized in that it comprises a signal processing module 600 for processing a signal converted into a digital signal by the ADC module 500,
상기 송신제어신호(TX)는 중심주파수발진모듈(200)를 턴-온 시켜 송신모드로 동작하도록 하는 크기를 갖는 신호이고, 상기 수신제어신호(RX)는 중심주파수발진모듈(200)를 턴-온 시켜 수신모드로 동작시키도록 하는 크기를 갖는 신호로서 송신제어신호(TX)보다 작은 크기를 갖는 신호인 것을 특징으로 한다.The transmission control signal TX is a signal having a magnitude to turn on the center frequency oscillation module 200 to operate in a transmission mode, and the reception control signal RX turns the center frequency oscillation module 200. A signal having a size that is turned on to operate in a reception mode, the signal having a size smaller than that of the transmission control signal TX.
또한, 부가적인 양태에 따라, 온도 변화에 상관없이 중심주파수발진모듈(200)이 안정적으로 동작하도록 하는 바이어스 제어모듈(700)을 더 포함하는 것을 특징으로 한다.In addition, according to an additional aspect, it characterized in that it further comprises a bias control module 700 to allow the center frequency oscillation module 200 to operate stably regardless of the temperature change.
또한, 다른 부가적인 양태에 따라, 안테나모듈(300)을 통해 수신되는 반사신호들 중 상기 특정 중심주파수를 갖는 반사신호만을 필터링하여 중심주파수발진모듈(200)로 제공하는 수신신호필터링모듈(800)을 더 포함하여 구성되는 것을 특징으로 한다.In addition, according to another additional aspect, the reception signal filtering module 800 for filtering only the reflection signal having the specific center frequency among the reflection signals received through the antenna module 300 to provide to the center frequency oscillation module 200 Characterized in that further comprises.
또한, 다른 부가적인 양태에 따라, 상기 샘플링모듈(400)에 의해 샘플링 된 신호값들을 저장하기 위해 상기 샘플링모듈(400)과 ADC 모듈(500) 사이에 형성되는 캐패시터모듈(900,Cx)을 더 포함하는 것을 특징으로 하며, 상기 ADC 모듈(500)에 의해 캐패시터모듈(900,Cx)에 저장된 신호값이 읽혀진 후에는 송수신제어신호발생모듈(100)의 CAP_Dchg 신호에 의해 캐패시터모듈(900,Cx)은 디스차징(discharging)된다. Further, according to another additional aspect, the capacitor module (900, Cx) formed between the sampling module 400 and the ADC module 500 to store the signal values sampled by the sampling module 400 further After the signal value stored in the capacitor module (900, Cx) by the ADC module 500 is read, the capacitor module (900, Cx) by the CAP_Dchg signal of the transmission and reception control signal generation module 100 Is discharging.
이때, 상기 송수신제어신호발생모듈(100)이 수행하는 제어신호처리 과정은 제1스텝에서 제n스텝까지 수행하는 과정을 포함하되,At this time, the control signal processing process performed by the transmission and reception control signal generation module 100 includes a process of performing the first step to the nth step,
상기 제1스텝은,The first step,
일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)를 중심주파수발진모듈(200)에 제공하고, 송신제어신호(TX) 제공 후, 설정된 제1지연시간(△t1) 경과 후 일정 대역폭을 갖는 광대역 임펄스 신호인 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하는 제1-1 스텝과The transmission control signal TX, which is a wideband impulse signal having a predetermined bandwidth, is provided to the center frequency oscillation module 200, and after the transmission control signal TX is provided, the transmission control signal TX has a predetermined bandwidth after the set first delay time? T1. A first-first step of providing a reception control signal RX, which is a broadband impulse signal, to the center frequency oscillation module 200;
수신제어신호(RX) 제공 후, 샘플링 모듈(400)이 설정된 일정시간(△st) 동안 샘플링 하도록 하는 샘플링제어신호를 샘플링 모듈(400)로 제공하는 제1-2 스텝을 포함하고,And providing a sampling control signal to the sampling module 400 so that the sampling module 400 samples the predetermined time Δst after the reception control signal RX is provided.
상기 제n스텝은,The nth step,
일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)를 중심주파수발진모듈(200)에 제공하고, 송신제어신호(TX) 제공 후, 설정된 제n지연시간(△tn) 경과 후 일정 대역폭을 갖는 광대역 임펄스 신호인 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하는 제n-1 스텝과The transmission control signal TX, which is a broadband impulse signal having a predetermined bandwidth, is provided to the center frequency oscillation module 200. After the transmission control signal TX is provided, the transmission control signal TX has a predetermined bandwidth after the set n-th delay time Δtn. N-th step of providing the reception control signal RX, which is a broadband impulse signal, to the center frequency oscillation module 200;
수신제어신호(RX) 제공 후, 샘플링 모듈(400)이 설정된 일정시간(△st) 동안 샘플링 하도록 하는 샘플링제어신호를 샘플링 모듈(400)로 제공하는 제n-2 스텝을 포함하며,After the reception control signal (RX), and the sampling module 400 to provide a sampling control signal for sampling to the sampling module 400 for a predetermined predetermined time (Δst), and includes an n-2 step,
상기 n은 2 이상 N 이하의 값으로서, 상기 제어신호처리 과정은 제1스텝부터제N스텝가지 수행되는 것을 특징으로 하고, N is a value greater than or equal to 2 and less than or equal to N, wherein the control signal processing is performed from the first step to the Nth step.
상기 N은 초광대역 레이더 트랜시버가 측정할 수 있는 탐지거리를 기본 단위거리로 나눈 값이고,N is a value obtained by dividing a detection distance that an ultra-wideband radar transceiver can measure by a basic unit distance,
상기 기본 단위거리는 거리 측정을 위해 사전에 사용자에 의해 설정되는 단위 거리 값이고,The basic unit distance is a unit distance value previously set by the user for distance measurement,
상기 설정된 제n지연시간인 △tn은 (임펄스 레이다 신호가 레이더 트랜시버로부터 송신된 후 기본 단위거리에서 반사되어 되돌아오는데 걸리는 시간)×이고,Δtn, which is the set nth delay time, is (time taken for the impulse radar signal to be reflected and returned at the basic unit distance after being transmitted from the radar transceiver) ×,
상기 샘플링을 위해 설정된 일정시간(△st)은 사전에 사용자에 의해 설정되는 시간인 것을 특징으로 하고,The predetermined time Δst set for the sampling may be a time set by a user in advance.
상기 제1스텝부터 제N스텝까지의 각각의 스텝은 설정된 반복 횟수인 N1, N2, ....NN만금 반복 수행되고, 설정된 반복 횟수인 N1, N2, ....NN은 동일하거나 서로 다른 값인 것을 특징으로 한다.Each step from the first step to the Nth step is repeatedly performed as set number of repetitions N1, N2, .... NN, and the set number of repetitions N1, N2, .... NN are the same or different. It is characterized in that the value.
이하에서는, 본 발명에 의한 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버의 실시예를 통해 상세히 설명하도록 한다.Hereinafter, an embodiment of the ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal according to the present invention will be described in detail.
도 1은 본 발명의 일 실시예에 따른 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버의 전체 구성도이며, 도 2는 세부 구성이 표시된 구성 블록도이다.1 is an overall configuration diagram of an ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal according to an embodiment of the present invention, Figure 2 is a block diagram showing a detailed configuration.
도 1에 도시한 바와 같이, 본 발명인 초광대역(Ultra wide Band) 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버는 기본적으로 송수신제어신호발생모듈(100), 중심주파수발진모듈(200), 안테나모듈(300), 샘플링모듈(400), ADC모듈(500), 신호처리모듈(600)를 포함하게 된다.As shown in FIG. 1, an ultra wideband radar transceiver for transmitting and receiving an ultra wide band impulse radar signal of the present invention is basically a transmission / reception control signal generation module 100, a center frequency oscillation module 200, an antenna module ( 300, the sampling module 400, the ADC module 500, and the signal processing module 600 are included.
구체적으로 설명하면, Specifically,
상기 송수신제어신호발생모듈(100)은 일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)와 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하고, 샘플링제어신호를 샘플링모듈(400)로 제공하는 제어신호처리 과정을 수행하게 된다.The transmission and reception control signal generation module 100 provides a transmission control signal TX and a reception control signal RX, which are broadband impulse signals having a predetermined bandwidth, to the center frequency oscillation module 200, and provides a sampling control signal to the sampling module ( A control signal processing process provided at 400 is performed.
일정 대역폭을 갖는 광대역 임펄스 신호는 일반적으로 투과 특성 및 해상도가 우수한 초광대역(Ultra Wide-Band) 신호를 의미하며, 상승 시간과 하강 시간은 수십 피코 초(pico-seconds)를 가지며, 폭은 수백 피코 초(pico-seconds)를 가지는 펄스 신호인 것을 특징으로 한다.Broadband impulse signals with constant bandwidth generally refer to ultra wide-band signals with good transmission characteristics and resolution, with rise times and fall times of several tens of pico-seconds, and widths of hundreds of pico. It is characterized in that the pulse signal having seconds (pico-seconds).
이때, 일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)와 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하게 되며, 이후에 샘플링제어신호를 샘플링모듈(400)로 제공하는 제어신호처리 과정을 수행하게 된다.At this time, the transmission control signal TX and the reception control signal RX, which are broadband impulse signals having a predetermined bandwidth, are provided to the center frequency oscillation module 200, and then the sampling control signal is provided to the sampling module 400. Control signal processing is performed.
구체적으로 도 2를 예를 들어, 설명하자면, 송수신제어신호발생모듈(100)은 일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)를 생성하여 이를 중심주파수발진모듈(200)로 제공한다.Specifically, referring to FIG. 2, for example, the transmission / reception control signal generation module 100 generates a transmission control signal TX, which is a broadband impulse signal having a predetermined bandwidth, and provides the transmission control signal TX to the center frequency oscillation module 200.
즉, 중심주파수발진모듈(200)을 구성하는 트랜지스터(210)의 콜렉터로 송신제어신호가 제공되면 트랜지스터(210)는 턴 온(turn-on)되고, 중심주파수발진모듈을 구성하는 발진회로(220)에 의해 특정 중심주파수를 갖는 광대역 임펄스 신호가 생성된다.That is, when the transmission control signal is provided to the collector of the transistor 210 constituting the center frequency oscillation module 200, the transistor 210 is turned on and the oscillation circuit 220 constituting the center frequency oscillation module 200. ) Produces a wideband impulse signal with a specific center frequency.
본 발명에서 초광대역 임펄스 신호(레이더 신호)의 대역폭과 중심주파수는 각각 송신제어신호(TX)의 폭과 중심주파수발진모듈(200)의 발진 주파수에 의해 결정된다. In the present invention, the bandwidth and the center frequency of the ultra-wideband impulse signal (radar signal) are determined by the width of the transmission control signal TX and the oscillation frequency of the center frequency oscillation module 200, respectively.
이때, 생성된 특정 중심주파수를 갖는 일정 대역폭을 갖는 광대역 임펄스 신호는 안테나모듈(300)로 제공되게 된다.At this time, the broadband impulse signal having a predetermined bandwidth having a specific center frequency generated is provided to the antenna module 300.
이후, 일정한 시간 지연 후 송수신제어신호발생모듈(100)은 수신제어신호(RX)를 중심주파수발진모듈(200)로 제공하게 된다.Thereafter, after a predetermined time delay, the transmission / reception control signal generation module 100 provides the reception control signal RX to the center frequency oscillation module 200.
이때, 송수신제어신호발생모듈(100)이 수행하는 각 제어신호처리과정의 각 스텝마다 송수신제어신호발생모듈(100)이 송신제어신호(TX)를 제공한 후 수신제어신호(RX)를 중심주파수발진모듈(200)로 제공하기까지 지연되는 시간은 상이하다.At this time, the transmission / reception control signal generation module 100 provides the transmission control signal TX at each step of the control signal processing process performed by the transmission / reception control signal generation module 100 and then receives the reception control signal RX as the center frequency. The delay time until the oscillation module 200 is provided is different.
즉, 제n 스텝의 경우 지연 시간은 △tn=(임펄스 레이다 신호가 레이더 트랜시버로부터 송신된 후 기본 단위거리에서 반사되어 돌아오는데 걸리는 시간)×이 되는 것이다.That is, in the case of the n-th step, the delay time becomes Δtn = (time taken for the impulse radar signal to be reflected back from the basic unit distance after being transmitted from the radar transceiver) ×.
또한, 중심주파수발진모듈에 제공되는 송신제어신호(TX)는 중심주파수발진모듈(200)를 턴-온 시켜 송신모드로 동작하도록 하는 크기를 갖는 신호이고, 상기 수신제어신호(RX)는 중심주파수발진모듈(200)를 턴-온 시켜 수신모드로 동작시키도록 하는 크기를 갖는 신호로서 송신제어신호(TX)보다 작은 크기를 갖는 신호인 것을 특징으로 한다.In addition, the transmission control signal TX provided to the center frequency oscillation module is a signal having a size to turn on the center frequency oscillation module 200 to operate in a transmission mode, and the reception control signal RX is a center frequency. The oscillation module 200 is a signal having a magnitude that is turned on to operate in a reception mode and has a smaller size than the transmission control signal TX.
상기 중심주파수발진모듈(200)은 송신제어신호(TX)에 의해 턴 온(turn-on)되고, 송신제어신호(TX)에 의한 턴 온(turn-on)시 대역폭을 갖는 광대역 임펄스 신호를 특정 중심주파수를 갖도록 하여 안테나모듈(300)에 제공하고, 수신제어신호(RX)에 의해 턴 온(turn-on)되고, 수신제어신호(RX)에 의해 턴 온(turn-on)시 안테나모듈(300)에서 수신된 반사신호들 중 특정 중심주파수(송신 임펄스 레이더 신호의 중심 주파수 의미)를 갖는 신호만을 샘플링모듈(400)로 제공하게 된다.The center frequency oscillation module 200 is turned on by the transmission control signal TX, and specifies a wideband impulse signal having a bandwidth when turned on by the transmission control signal TX. The antenna module 300 is provided to the antenna module 300 to have a center frequency, and is turned on by the reception control signal RX, and is turned on by the reception control signal RX. Only signals having a specific center frequency (meaning the center frequency of the transmission impulse radar signal) among the reflected signals received at 300 are provided to the sampling module 400.
구체적으로, 도 2에 도시된 바와 같이 송신제어신호가 임피던스소자(L2)를 거쳐 트랜지스터(210)의 콜렉터에 전달되면 중심주파수발진모듈(200)은 턴 온(turn-on)되고, 트랜지스터의 콜렉터에 가해진 송신제어신호에 의하여 중심주파수발진모듈(200)은 특정 중심주파수를 발진 주파수로 하는 광대역 임펄스 신호를 생성하게 된다.Specifically, as shown in FIG. 2, when the transmission control signal is transmitted to the collector of the transistor 210 through the impedance element L2, the center frequency oscillation module 200 is turned on and the collector of the transistor is turned on. The center frequency oscillation module 200 generates a wideband impulse signal having a specific center frequency as an oscillation frequency by the transmission control signal applied to the oscillation frequency.
이때, 생성된 특정 중심주파수를 갖는 일정 대역폭을 갖는 광대역 임펄스 신호는 트랜지스터(210)를 거쳐 안테나모듈(300)로 제공되며, 안테나모듈(300)을 통해 외부로 특정 중심주파수를 갖는 일정 대역폭을 갖는 대역 임펄스 신호가 송신되는 것이다.At this time, the wideband impulse signal having a predetermined bandwidth having a specific center frequency generated is provided to the antenna module 300 via the transistor 210, and has a predetermined bandwidth having a specific center frequency to the outside through the antenna module 300. The band impulse signal is transmitted.
이후, 중심주파수발진모듈(200)은 수신제어신호(RX)에 의해 턴 온(turn-on)되고, 안테나모듈(300)에서 수신된 반사신호들 중 특정 중심주파수(송신 임펄스 레이더 신호의 중심 주파수 의미)를 갖는 신호만을 샘플링모듈(400)로 제공하게 된다.Thereafter, the center frequency oscillation module 200 is turned on by the reception control signal RX, and has a specific center frequency among the reflection signals received by the antenna module 300 (the center frequency of the transmission impulse radar signal). Meaning) only the signal having the) to the sampling module 400.
구체적으로, 송수신제어신호발생모듈(100)로부터 제공된 수신제어신호가 트랜지스터의 콜렉터로 제공되면 중심주파수발진모듈(200)은 턴온되고 안테나모듈에서 수신된 신호들 중에서 특정 중심주파수(송신 임펄스 레이더 신호의 중심 주파수로서 전송시 사용한 중심주파수 의미)를 갖는 신호만을 샘플링모듈(400)로 제공하게 되는 것이다.Specifically, when the reception control signal provided from the transmit / receive control signal generation module 100 is provided to the collector of the transistor, the center frequency oscillation module 200 is turned on and has a specific center frequency (transmission impulse radar signal) among the signals received from the antenna module. Only the signal having the center frequency used for transmission as the center frequency) is provided to the sampling module 400.
상기 안테나모듈(300)은 중심주파수발진모듈(200)에서 제공된 특정 중심주파수를 갖는 일정 대역폭을 갖는 광대역 임펄스 신호를 외부로 송신하고, 외부로부터 반사신호들을 수신한다. 이때 외부로부터 수신하는 반사신호에는 송신한 특정 중심주파수를 갖는 임펄스 레이더 신호의 반사신호를 포함한다.The antenna module 300 transmits a wideband impulse signal having a predetermined bandwidth having a specific center frequency provided by the center frequency oscillation module 200 to the outside and receives the reflected signals from the outside. In this case, the reflection signal received from the outside includes a reflection signal of an impulse radar signal having a specific center frequency transmitted.
상기 샘플링모듈(400)은 상기 안테나모듈(300)이 수신한 반사신호들중에서 중심주파수발진모듈(200)이 제공한 특정 중심주파수를 갖는 반사신호를 송수신제어신호발생모듈(100)이 제공한 샘플링제어신호(SMP_CTL)에 따라 사전에 설정된 일정시간(△st) 동안 샘플링하는 기능을 수행하게 된다.The sampling module 400 is a sampling provided by the transmission and reception control signal generation module 100 for a reflection signal having a specific center frequency provided by the center frequency oscillation module 200 among the reflection signals received by the antenna module 300. According to the control signal SMP_CTL, a sampling function is performed for a predetermined time Δst.
예를 들어, 사전에 설정된 일정시간(△st)이 0.5밀리초라면, 송수신제어신호발생모듈(100)로부터 샘플링제어신가 제공되면 0.5밀리초 동안 샘플링을 수행하게 되는 것이다.For example, if the predetermined predetermined time Δst is 0.5 milliseconds, the sampling control signal is provided from the transmission / reception control signal generation module 100 to perform sampling for 0.5 milliseconds.
샘플링 시간인 상기 사전에 설정된 일정시간(△st)은 사전에 사용자에 의해 설정되는 시간인 것을 특징으로 한다.The predetermined predetermined time Δst, which is a sampling time, is a time set by a user in advance.
상기 ADC모듈(500)은 상기 샘플링된 신호를 디지털 신호로 변환하게 되며, 상기 신호처리모듈(600)은 상기 ADC모듈(500)에 의해 디지털 신호로 변환된 신호를 제공 받아 특정 목적에 맞게 처리하게 된다.The ADC module 500 converts the sampled signal into a digital signal, and the signal processing module 600 receives a signal converted into a digital signal by the ADC module 500 and processes the signal according to a specific purpose. do.
상기한 ADC모듈(500)와 신호처리모듈(600)는 일반적인 초광대역 레이더 트랜시버에 구성되는 기술이므로 상세한 설명은 생략하도록 하겠다.Since the ADC module 500 and the signal processing module 600 are a technology configured in a general ultra-wideband radar transceiver, detailed description thereof will be omitted.
또한, 본 발명은 부가적인 양태에 따라, 바이어스 제어모듈(700)을 더 포함하는 것을 특징으로 한다. 상기 바이어스 제어모듈(700)은 도 2에 도시된 바와 같이 저항 R1,R2와 주변 온도에 따라 저항값이 가변하는 가변저항(Rt)을 포함하는 바이어스보상부(710)를 포함하여 구성되는 것을 특징으로 한다.The invention also features a bias control module 700, in accordance with additional aspects. As shown in FIG. 2, the bias control module 700 includes a bias compensator 710 including resistors R1 and R2 and a variable resistor Rt whose resistance value varies according to ambient temperature. It is done.
중심주파수발진모듈(200)은 안정적으로 최적 동작할 수 있는 바이어스 저항값이 필요하다. The center frequency oscillation module 200 needs a bias resistance value that can stably operate optimally.
상기 바이어스 제어모듈(700)은 중심주파수발진모듈(200)이 안정적으로 최적 동작할 수 있는 바이어스 저항값을 설정 제어하는 구성수단이다.The bias control module 700 is a constituent means for setting and controlling a bias resistance value in which the center frequency oscillation module 200 can operate stably and optimally.
이를 위해, 바이어스 제어모듈(700)은 바이어스보상부(710)를 구성하는 저항들(R1,R2,Rt)의 바이어스 저항값(R1,R2,Rt의 총 저항값)이 중심주파수발진모듈(200)이 안정적으로 최적 동작할 수 있는 바이어스 저항값이 되도록 설정 제어하기 위한 바이어스 제어신호를 생성하고, 생성된 바이어스 제어신호에 의해 바이어스보상부(710)를 구성하는 저항들(R1,R2,Rt)의 바이어스 저항값(R1,R2,Rt의 총 저항값)이 설정 제어된다.To this end, the bias control module 700 has a bias resistance value (total resistance values of R1, R2, Rt) of the resistors R1, R2, and Rt constituting the bias compensator 710 as the center frequency oscillation module 200. ) Generates a bias control signal for setting control so that the bias resistance value can stably operate optimally, and the resistors R1, R2, and Rt constituting the bias compensation unit 710 by the generated bias control signal. The bias resistance values (total resistance values of R1, R2, and Rt) are set and controlled.
바이어스 제어모듈(700)에 의해 설정 제어된 특정 바이어스 저항값(예:Ra)에서 동작 중 주변 온도가 변할 수 있게 되는데, 주변 온도가 변하게 되면 바이어스보상부(710)를 구성하는 저항들(R1,R2)도 온도 영향을 받게 되어 바이어스 제어모듈(700)에 의해 설정 제어된 특정 바이어스 저항값(예:Ra)이 아닌 다른 바이어스 저항값(예:Rb)이 되어 중심주파수발진모듈(200)의 최적 동작에 문제가 발생한다.Ambient temperature may be changed during operation at a specific bias resistance value (eg, Ra) set and controlled by the bias control module 700. When the ambient temperature is changed, the resistors R1, which constitute the bias compensator 710, may be changed. R2) is also affected by temperature, so that the bias resistance value (for example, Rb) is different from the specific bias resistance value (for example, Ra) that is set and controlled by the bias control module 700, so that the optimum frequency of the center frequency oscillation module 200 is obtained. Problems with operation.
이를 해결하기 위해 바이어스보상부(710)를 구성하는 상기 가변저항(Rt)은 주변 온도에 따라 저항값이 가변되어 바이어스 저항값(R1,R2,Rt의 총 저항값)이 바이어스 제어모듈(700)에 의해 설정 제어된 바이어스 저항값이 되도록 한다.In order to solve this problem, the variable resistor Rt constituting the bias compensator 710 has a variable resistance value according to an ambient temperature so that the bias resistance values (total resistance values of R1, R2, and Rt) have a bias control module 700. The bias resistance value is set and controlled by.
즉 가변저항은 주변 온도에 따라 자신의 저항값을 가변시켜 온도 변화에 상관없이 중심주파수발진모듈(200)이 바이어스 제어모듈(700)에 의해 설정 제어된 특정 바이어스 저항값(Ra)에서 안정적으로 동작하도록 하는 것이다.That is, the variable resistor varies its resistance value according to the ambient temperature so that the center frequency oscillation module 200 operates stably at a specific bias resistance value Ra set and controlled by the bias control module 700 regardless of temperature change. To do that.
또한, 본 발명은 다른 부가적인 양태에 따라, 안테나모듈(300)을 통해 수신되는 반사신호들 중 상기 특정 중심주파수를 갖는 반사신호만을 필터링하여 중심주파수발진모듈(200)로 제공하는 수신신호필터링모듈(800)을 더 포함하여 구성되는 것을 특징으로 한다.In addition, according to another additional aspect of the present invention, the reception signal filtering module for filtering only the reflection signal having the specific center frequency among the reflection signals received through the antenna module 300 to provide to the center frequency oscillation module 200 Characterized in that it further comprises a (800).
안테나모듈(300)은 본 발명의 레이더 트랜시버가 전송한 특정 중심 주파수를 갖는 임펄스 레이더 신호의 반사신호 뿐만 아니라 다른 반사신호도 수신하게 되며, 수신된 반사신호들중 본 발명의 레이더 트랜시버가 전송한 특정 중심 주파수를 갖는 임펄스 레이더 신호의 반사신호만을 필터링하여 중심주파수발진모듈(200)로 제공하는 것이다.The antenna module 300 receives not only the reflected signal of the impulse radar signal having a specific center frequency transmitted by the radar transceiver of the present invention but also other reflected signals, and among the received reflected signals, the specific transmitted by the radar transceiver of the present invention. Only the reflection signal of the impulse radar signal having the center frequency is provided to the center frequency oscillation module 200.
또한, 본 발명의 다른 부가적인 양태에 따라, 상기 샘플링모듈(400)에 의해 샘플링 된 신호값들을 저장하기 위해 상기 샘플링모듈(400)과 ADC 모듈(500) 사이에 형성되는 캐패시터모듈(900,Cx)을 더 포함하는 것을 특징으로 하며, 상기 ADC 모듈(500)에 의해 캐패시터모듈(900,Cx)에 저장된 신호값이 읽혀진 후에는 도 2에 도시된 바와 같이 송수신제어신호발생모듈(100)의 CAP_Dchg 신호에 의해 캐패시터모듈(900,Cx)은 디스차징(discharging)된다. Further, according to another additional aspect of the present invention, capacitor modules 900 and Cx formed between the sampling module 400 and the ADC module 500 for storing signal values sampled by the sampling module 400. After the signal value stored in the capacitor module (900, Cx) by the ADC module 500 is read, as shown in Figure 2 CAP_Dchg of the transmission and reception control signal generation module 100 Capacitor modules 900 and Cx are discharged by the signal.
한편, 본 발명에서 설명하고 있는 송신제어신호(TX)는 중심주파수발진모듈(200)를 턴-온 시켜 송신모드로 동작하도록 하는 크기를 갖는 신호이고, 상기 수신제어신호(RX)는 중심주파수발진모듈(200)를 턴-온 시켜 수신모드로 동작시키도록 하는 크기를 갖는 신호로서 송신제어신호(TX)보다 작은 크기를 갖는 신호인 것을 특징으로 하고 있다.On the other hand, the transmission control signal TX described in the present invention is a signal having a size to operate in the transmission mode by turning on the center frequency oscillation module 200, the reception control signal (RX) is the center frequency oscillation The signal is a signal having a size that is turned on to operate in the reception mode by turning on the module 200, and has a smaller size than the transmission control signal TX.
한편, 송수신제어신호발생모듈(100)은 송신제어신호(TX) 제공 후, 중심주파수발진모듈(200)로의 수신제어신호(RX) 제공과 샘플링모듈(400)로의 샘플링제어신호를 제공하는 제어신호처리 과정을 수행하게 되는데 이에 대해 도 3 내지 도 5를 참조하여 자세히 설명한다.Meanwhile, after the transmission control signal generation module 100 provides the transmission control signal TX, the control signal provides the reception control signal RX to the center frequency oscillation module 200 and the sampling control signal to the sampling module 400. Processing will be performed, which will be described in detail with reference to FIGS. 3 to 5.
상기 송수신제어신호발생모듈(100)이 수행하는 제어신호처리 과정은 도 3에 도시된 바와 같이 제1스텝(S100)에서 제n스텝(SN00)까지 수행하는 과정을 포함하되,The control signal processing performed by the transmission / reception control signal generation module 100 includes a process of performing the first step S100 to the nth step SN00 as shown in FIG. 3.
상기 제1스텝(S100)은,The first step (S100),
일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)를 중심주파수발진모듈(200)에 제공하고, 송신제어신호(TX) 제공 후, 설정된 제1지연시간(△t1) 경과 후 일정 대역폭을 갖는 광대역 임펄스 신호인 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하는 제1-1 스텝(S110)과The transmission control signal TX, which is a wideband impulse signal having a predetermined bandwidth, is provided to the center frequency oscillation module 200, and after the transmission control signal TX is provided, the transmission control signal TX has a predetermined bandwidth after the set first delay time? T1. A first-first step S110 of providing a reception control signal RX, which is a broadband impulse signal, to the center frequency oscillation module 200;
수신제어신호(RX) 제공 후, 샘플링 모듈(400)이 설정된 일정시간(△st) 동안 샘플링 하도록 하는 샘플링제어신호를 샘플링 모듈(400)로 제공하는 제1-2 스텝(S1200을 포함하고,After providing the reception control signal (RX), the sampling module 400 provides a sampling control signal for sampling to the sampling module 400 for a predetermined time (Δst), and includes a 1-2 step (S1200),
상기 제n스텝은,The nth step,
일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)를 중심주파수발진모듈(200)에 제공하고, 송신제어신호(TX) 제공 후, 설정된 제n지연시간(△tn) 경과 후 일정 대역폭을 갖는 광대역 임펄스 신호인 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하는 제n-1 스텝과The transmission control signal TX, which is a broadband impulse signal having a predetermined bandwidth, is provided to the center frequency oscillation module 200. After the transmission control signal TX is provided, the transmission control signal TX has a predetermined bandwidth after the set n-th delay time Δtn. N-th step of providing the reception control signal RX, which is a broadband impulse signal, to the center frequency oscillation module 200;
수신제어신호(RX) 제공 후, 샘플링 모듈(400)이 설정된 일정시간(△st) 동안 샘플링 하도록 하는 샘플링제어신호를 샘플링 모듈(400)로 제공하는 제n-2 스텝을 포함한다.After providing the reception control signal (RX), the sampling module 400 provides a sampling control signal to the sampling module 400 for sampling for a predetermined time (Δst) for a predetermined time step (−2).
상기 n은 2 이상 N 이하의 값으로서, 상기 송수신제어신호발생모듈(100)이 수행하는 제어신호처리 과정은 도 3에 도시된 바와 같이 제1스텝(S100)에서 제n스텝(SN00)까지 수행되는 것을 특징으로 한다.N is a value greater than or equal to 2 and less than or equal to N, and the control signal processing performed by the transmission / reception control signal generation module 100 is performed from the first step S100 to the nth step SN00 as shown in FIG. It is characterized by.
상기 N은 초광대역 레이더 트랜시버가 측정할 수 있는 탐지거리를 기본 단위거리로 나눈 값이고,N is a value obtained by dividing a detection distance that an ultra-wideband radar transceiver can measure by a basic unit distance,
상기 기본 단위거리는 거리 측정을 위해 사전에 사용자에 의해 설정되는 단위 거리 값이고,The basic unit distance is a unit distance value previously set by the user for distance measurement,
상기 설정된 제n지연시간인 △tn은 (임펄스 레이다 신호가 레이더 트랜시버로부터 송신된 후 기본 단위거리에서 반사되어 되돌아오는데 걸리는 시간)×이고,Δtn, which is the set nth delay time, is (time taken for the impulse radar signal to be reflected and returned at the basic unit distance after being transmitted from the radar transceiver) ×,
상기 샘플링을 위해 설정된 일정시간(△st)은 사전에 사용자에 의해 설정되는 시간이고,The predetermined time Δst set for the sampling is a time set by the user in advance,
상기 제1스텝부터 제N스텝까지의 각각의 스텝은 설정된 반복 횟수인 N1, N2, ....NN만금 반복 수행되고, 설정된 반복 횟수인 N1, N2, ....NN은 동일하거나 서로 다른 값인 것을 특징으로 한다.Each step from the first step to the Nth step is repeatedly performed as set number of repetitions N1, N2, .... NN, and the set number of repetitions N1, N2, .... NN are the same or different. It is characterized in that the value.
먼저, 제1스텝(S100)에 대해 설명한다.First, the first step S100 will be described.
일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)를 송수신제어신호발생모듈(100)이 중심주파수발진모듈(200)에 제공하고, 송신제어신호(TX) 제공 후, 제1지연시간(△t1) 경과 후 일정 대역폭을 갖는 광대역 임펄스 신호인 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하는 제1-1 스텝(S110)을 수행한다.The transmission control signal TX, which is a broadband impulse signal having a predetermined bandwidth, is provided by the transmission and reception control signal generation module 100 to the center frequency oscillation module 200, and after the transmission control signal TX is provided, the first delay time (Δ). After t1), the first-first step S110 of providing the reception control signal RX, which is a broadband impulse signal having a predetermined bandwidth, to the center frequency oscillation module 200 is performed.
도 4는 제1스텝에서의 송신제어신호(TX)와 수신제어신호(RX)와 샘플링제어신호의 관계를 나타낸 그래프이다. 상기 제1지연시간(△t1)은 임펄스 레이다 신호가 레이더 트랜시버로부터 송신된 후 최초 기본 단위거리에 있는 물체에서 반사되어 되돌아오기까지 걸리는 시간으로서 도 3의 △T=Resolution에 해당하는 시간을 의미한다.4 is a graph showing the relationship between the transmission control signal TX, the reception control signal RX, and the sampling control signal in the first step. The first delay time [Delta] t1 is a time taken for the impulse radar signal to be reflected from the object at the initial basic unit distance after being transmitted from the radar transceiver and returned, and means a time corresponding to [Delta] T = Resolution of FIG. .
수신제어신호(RX) 제공후, 바로 샘플링 모듈(400)이 설정된 일정시간(△st) 동안 샘플링 하도록 하는 샘플링제어신호를 송수신제어신호발생모듈(100)이 샘플링 모듈(400)로 제공하는 제1-2 스텝(S120)을 수행한다.Immediately after the reception control signal RX is provided, the transmission control signal generation module 100 provides the sampling module 400 with the sampling control signal for causing the sampling module 400 to sample for a predetermined time Δst. -2 step S120 is performed.
상기 샘플링 시간인 일정시간(△st)은 사전에 사용자에 의해 임의로 설정되는 시간인 것으로 샘플링 모듈(400)은 샘플링제어신호 수신후 사전에 설정된 일정시간(△st) 동안만 샘플링 하는 것을 특징으로 한다.The sampling time Δst, which is the sampling time, is a time that is arbitrarily set by a user. The sampling module 400 samples only a predetermined time Δst after a sampling control signal is received. .
또한, 상기 제1스텝은 사전에 설정된 횟수인 N1만큼 반복 수행된다.In addition, the first step is repeatedly performed by N1 which is a preset number of times.
상기 제1스텝은 초광대역 레이더 트랜시버를 이용해 송신 임펄스 레이더 신호를 송출하고 최초의 기본 단위거리에 있는 물체에서 반사되는 반사신호를 수신하고 샘플링하는 과정이고, 상기 제1스텝을 사전에 설정된 횟수인 N1만큼 반복 수행하는 이유는 측정의 정확도를 높이기 위해 N1만큼 반복 수행하는 것이다.The first step is a process of transmitting a transmission impulse radar signal using an ultra-wideband radar transceiver, receiving and sampling a reflected signal reflected from an object at an initial basic unit distance, and N1 which is a predetermined number of times. The reason to repeat as many times is to repeat by N1 to increase the accuracy of the measurement.
다음으로, 상기 제n스텝에 대해 설명한다.Next, the nth step will be described.
본 발명에서 상기 n은 2 이상 N 이하의 값으로서, 본 발명의 송수신제어신호발생모듈(100)에 의해 수행되는 제어신호처리과정은 상술한 제1스텝부터 제N스텝까지 수행되는 것을 특징으로 한다.In the present invention, n is a value greater than or equal to 2 and less than or equal to N, and the control signal processing performed by the transmission / reception control signal generation module 100 of the present invention is performed from the first step to the Nth step. .
또한,상기 제1스텝부터 제N스텝까지의 각각의 스텝은 설정된 반복 횟수인 N1, N2, ....NN만금 반복 수행되고, 설정된 반복 횟수인 N1, N2, ....NN은 동일하거나 서로 다른 값인 것을 특징으로 한다.In addition, each step from the first step to the Nth step is repeatedly performed as set number of repetitions N1, N2, .... NN, and the set number of repetitions N1, N2, .... NN are the same or It is characterized by different values.
상기 제n스텝은 초광대역 레이더 트랜시버를 이용해 n×기본 단위거리)에 존재하는 사물의 거리 측정을 위한 과정이고, 상기 각 스텝을 사전에 설정된 횟수인 N1, N2, ....NN 만큼 반복 수행하는 이유는 거리 측정의 정확도를 높이기 위해 반복 수행하는 것이다.The nth step is a process for measuring the distance of the object existing in n × basic unit distance using an ultra-wideband radar transceiver, and repeating each step by a predetermined number of times N1, N2, .... NN The reason for this is to repeat the process to increase the accuracy of the distance measurement.
상기 기본 단위거리는 상술한 바와 같이 거리 측정을 위해 사전에 레이더 트랜시버에 설정되는 단위 거리로서 사용자에 의해 임의로 설정되는 거리이며, 기본 단위 거리가 작으면 작을 수록 거리 측정의 해상도가 높아지는 것이고, 크면 클수록 그만큼 거리 측정의 해상도가 낮아지는 것이다. The basic unit distance is a distance set by the user as a unit distance set in advance in the radar transceiver for distance measurement as described above. The smaller the basic unit distance is, the higher the resolution of the distance measurement is. The resolution of the distance measurement is lowered.
제2스텝(S200)에 대해 설명한다.The second step S200 will be described.
일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)를 송수신제어신호발생모듈(100)이 중심주파수발진모듈(200)에 제공하고, 송신제어신호(TX) 제공 후, 제2지연시간(△t2) 경과 후 일정 대역폭을 갖는 광대역 임펄스 신호인 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하는 제2-1 스텝(S210)을 수행한다.The transmission control signal TX, which is a broadband impulse signal having a predetermined bandwidth, is provided by the transmission and reception control signal generation module 100 to the center frequency oscillation module 200, and after the transmission control signal TX is provided, the second delay time (Δ). After step t2), a second step S210 of providing a reception control signal RX, which is a broadband impulse signal having a predetermined bandwidth, to the center frequency oscillation module 200 is performed.
상기 제2지연시간(△t2)은 임펄스 레이다 신호가 레이더 트랜시버로부터 송신된 후 두번째 기본 단위거리에 있는 물체에서 반사되어 되돌아오기까지 걸리는 시간으로서 도 4의 △T=Resolution의 2 배에 해당하는 시간을 의미한다.The second delay time [Delta] t2 is the time taken for the impulse radar signal to be reflected and returned from the object at the second basic unit distance after being transmitted from the radar transceiver, which corresponds to ΔT = Resolution of FIG. 4. Means.
이후 수신제어신호(RX) 제공후, 바로 샘플링 모듈(400)이 설정된 일정시간(△st) 동안 샘플링 하도록 하는 샘플링제어신호를 송수신제어신호발생모듈(100)이 샘플링 모듈(400)로 제공하는 제2-2 스텝(S220)을 수행한다.Subsequently, after the reception control signal RX is provided, the transmission and reception control signal generation module 100 provides the sampling module 400 with a sampling control signal that causes the sampling module 400 to sample for a predetermined time Δst. Step 2-2 is performed.
상기 샘플링 시간인 일정시간(△st)은 사전에 사용자에 의해 임의로 설정되는 시간인 것으로 샘플링 모듈(400)은 샘플링제어신호 수신후 사전에 설정된 일정시간(△st) 동안만 샘플링 하는 것을 특징으로 한다.The sampling time Δst, which is the sampling time, is a time that is arbitrarily set by a user. The sampling module 400 samples only a predetermined time Δst after a sampling control signal is received. .
또한, 상기 제2스텝은 사전에 설정된 횟수인 N2만큼 반복 수행된다.In addition, the second step is repeatedly performed by N2 which is a preset number of times.
상기 제2스텝은 초광대역 레이더 트랜시버를 이용해 송신 임펄스 레이더 신호를 송출하고 두번째 기본 단위거리에 있는 물체에서 반사되는 반사신호를 수신하고 샘플링하는 과정이고, 상기 제2스텝을 사전에 설정된 횟수인 N2만큼 반복 수행하는 이유는 측정의 정확도를 높이기 위해 N2만큼 반복 수행하는 것이다.The second step is a process of transmitting a transmission impulse radar signal using an ultra-wideband radar transceiver and receiving and sampling a reflected signal reflected from an object at a second basic unit distance, and the second step is N2 which is a predetermined number of times. The reason for the repetition is to repeat by N2 to increase the accuracy of the measurement.
다음으로, 제3스텝(S300)에 대해 설명한다.Next, the third step S300 will be described.
일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)를 송수신제어신호발생모듈(100)이 중심주파수발진모듈(200)에 제공하고, 송신제어신호(TX) 제공 후, 제3지연시간(△t3) 경과 후 일정 대역폭을 갖는 광대역 임펄스 신호인 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하는 제3-1 스텝(미도시)을 수행한다.The transmission control signal TX, which is a broadband impulse signal having a predetermined bandwidth, is provided by the transmission and reception control signal generation module 100 to the center frequency oscillation module 200, and after the transmission control signal TX is provided, the third delay time (Δ). t3) Step 3-1 (not shown) is performed to provide the reception control signal RX, which is a broadband impulse signal having a predetermined bandwidth, to the center frequency oscillation module 200.
상기 제3지연시간(△t3)은 임펄스 레이다 신호가 레이더 트랜시버로부터 송신된 후 세번째 기본 단위거리에 있는 물체에서 반사되어 되돌아오기까지 걸리는 시간으로서 도 4의 △T=Resolution의 3 배에 해당하는 시간을 의미한다.The third delay time Δt3 is a time taken for the impulse radar signal to be reflected and returned from the object at the third basic unit distance after being transmitted from the radar transceiver, which corresponds to three times ΔT = Resolution in FIG. 4. Means.
이후 수신제어신호(RX) 제공후, 바로 샘플링 모듈(400)이 설정된 일정시간(△st) 동안 샘플링 하도록 하는 샘플링제어신호를 송수신제어신호발생모듈(100)이 샘플링 모듈(400)로 제공하는 제3-2 스텝(미도시)을 수행한다.Subsequently, after the reception control signal RX is provided, the transmission and reception control signal generation module 100 provides the sampling module 400 with a sampling control signal that causes the sampling module 400 to sample for a predetermined time Δst. Perform step 3-2 (not shown).
상기 샘플링 시간인 일정시간(△st)은 사전에 사용자에 의해 임의로 설정되는 시간인 것으로 샘플링 모듈(400)은 샘플링제어신호 수신후 사전에 설정된 일정시간(△st) 동안만 샘플링 하는 것을 특징으로 한다.The sampling time Δst, which is the sampling time, is a time that is arbitrarily set by a user. The sampling module 400 samples only a predetermined time Δst after a sampling control signal is received. .
또한, 상기 제3스텝 역시 사전에 설정된 횟수인 N3만큼 반복 수행된다.In addition, the third step is repeated as much as N3, which is a preset number.
상기 제3스텝은 초광대역 레이더 트랜시버를 이용해 송신 임펄스 레이더 신호를 송출하고 세번째 기본 단위거리에 있는 물체에서 반사되는 반사신호를 수신하고 샘플링하는 과정이고, 상기 제3스텝을 사전에 설정된 횟수인 N3만큼 반복 수행하는 이유는 측정의 정확도를 높이기 위해 N3만큼 반복 수행하는 것이다.The third step is a process of transmitting a transmission impulse radar signal by using an ultra-wideband radar transceiver and receiving and sampling a reflected signal reflected from an object at a third basic unit distance, and the third step is a predetermined number N3. The reason for the repetition is to repeat by N3 to increase the accuracy of the measurement.
상기와 같은 과정을 N 스텝(SN00)까지 수행하는 것이다.The above process is performed up to N steps SN00.
특히, 각 스텝에 있어서 송신제어신호(TX) 제공 후, 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하기까지 지연되는 시간인 제n지연시간(△tn)은 n×△t1의 관계가 설정되는 것이다.In particular, the nth delay time DELTA tn, which is a time delay after the transmission control signal TX is provided to the center frequency oscillation module 200 after providing the transmission control signal TX in each step, is n × Δt1. Relationship is established.
상기 N은 초광대역 레이더 트랜시버가 측정할 수 있는 탐지거리를 기본 단위거리로 나눈 값인 것을 특징으로 한다.N is a value obtained by dividing a detection distance that an ultra-wideband radar transceiver can measure by a basic unit distance.
상기에서 설명한 상기 제1~N 스텝들 각각은 거리 측정 정확도를 높이기 위해 사전에 설정된 횟수인 N1, N2, ....NN 만큼 반복 수행된다.Each of the first to N steps described above is repeated as many times as N1, N2,.
즉, 제1스텝 N1 반복→ 제2스텝 N2 반복→ 제3스텝 N3 반복.......제N스텝 NN반복 수행하는 것이다.In other words, the first step N1 repeats → the second step N2 repeats → the third step N3 repeats ... The Nth step NN repeats.
종래의 임펄스 레이더는 송신용 임펄스 신호를 주기적으로 송신하고, 송신된 임펄스 신호의 반사 신호를 연속적으로 수신하여 분석하는 것이어서 반사 신호의 왜곡등으로 인한 물체의 탐지에 오류가 있어 왔고, 운영 중에도 측정 범위를 세부적으로 조정하여 목적하는 범위의 수신 신호만을 수신하여 집중적으로 분석할 수 있는 기능은 제공할 수가 없었다.Conventional impulse radar periodically transmits an impulse signal for transmission, continuously receives and analyzes a reflected signal of the transmitted impulse signal, and thus, there has been an error in detecting an object due to distortion of the reflected signal, and a measurement range even during operation It could not provide the function that can be adjusted in detail and receive only the received signal in the desired range and analyze it intensively.
그러나 본 발명은 도 5에 도시된 바와 같이 총 탐지 거리를 기본 단위 거리들로 나눈 후, 트랜시버로부터 첫 번째 기본 단거리에 있는 물체의 거리 탐지를 위해 제1스텝을 N1만큼 반복하여 반사된 수신 신호를 샘플링하고, 두 번째 기본 단위거리에 있는 물체의 거리 탐지를 위해 제2스텝을 N2만큼 반복하여 반사된 수신 신호를 샘플링하고, 세 번째 기본 단위 거리에 있는 물체의 거리 탐지를 위해 제3스텝을 N3만큼 반복하여 반사된 수신 신호를 샘플링하고, .....N번째 기본 단위 거리에 있는 물체의 거리 탐지를 위해 제N스텝을 NN만큼 반복하여 반사된 수신 신호를 샘플링함으로서 종래의 임펄스 레이더를 이용한 물체 탐지의 왜곡 문제점을 해소하고 운영 중 측정 범위를 세부적으로 조정하여 목적하는 범위의 수신 신호만을 수신하여 집중적으로 분석할 수 있어 물체의 위치를 정확하게 측정할 수 있는 효과를 제공하게 되는 것이다.However, the present invention divides the total detection distance by the basic unit distances as shown in FIG. 5, and then repeats the first step by N1 to detect the distance of the object at the first fundamental short distance from the transceiver. Sample the reflected signal by repeating the second step N2 to detect the distance of the object at the second fundamental unit distance, and N3 to detect the distance of the object at the third fundamental unit distance By sampling the reflected received signal repeatedly as much as possible, and sampling the reflected received signal by repeating the Nth step NN to detect the distance of the object at the N-th basic unit distance, using a conventional impulse radar. It solves the distortion problem of object detection and finely adjusts the measuring range during operation to receive and analyze only the received signal of the desired range for intensive analysis. This provides the effect of accurately measuring the position of the object.
본 발명에 있어서 초광대역 레이더 트랜시버를 구성하는 상술한 각 모듈은 하나의 보드 또는 칩상에 구현됨으로 초광대역 레이더 트랜시버가 보드 타입 또는 칩 타입으로 형성되는 것을 특징으로 한다.In the present invention, the above-described modules constituting the ultra-wideband radar transceiver are implemented on one board or chip, so that the ultra-wideband radar transceiver is formed in a board type or a chip type.
이상에서는 본 발명의 바람직한 실시예에 대하여 도시하고 설명하였지만, 본 발명은 상술한 특정의 실시 예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변형 실시가 가능한 것은 물론이고, 이러한 변형 실시들은 본 발명의 기술적 사상이나 전망으로부터 개별적으로 이해되어서는 안될 것이다.Although the above has been illustrated and described with respect to the preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be understood individually from the technical idea or the prospect of the present invention.
이상의 구성 및 작용을 지니는 본 발명에 따른 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버를 통해, 초광대역 레이더 트랜시버에 구성된 송수신제어신호발생모듈의 제어신호처리 과정에 따라, 송신제어신호(TX)를 중심주파수발진모듈에 제공한 후, 설정된 지연시간 경과 후, 수신제어신호(RX)를 중심주파수발진모듈에 제공하고, 수신제어신호(RX) 제공 후, 샘플링모듈로 샘플링제어신호를 제공하는 과정을 반복하되, 설정된 지연시간을 상기 과정 반복시마다 증가시킴으로써, 최대 지연시간까지 측정이 가능하여 전체 레이더 측정 구간에 대하여 물체의 위치를 정확하게 측정할 수 있는 효과를 발휘하게 되므로 산업상 이용가능성도 높아진다.Transmission control signal (TX) according to the control signal processing of the transmission and reception control signal generation module configured in the ultra-wideband radar transceiver through the ultra-wideband radar transceiver for transmitting and receiving the ultra-wideband impulse radar signal according to the present invention having the above configuration and action, Is provided to the center frequency oscillation module, after the set delay time has elapsed, the reception control signal RX is provided to the center frequency oscillation module, the reception control signal RX is provided, and then the sampling control signal is provided to the sampling module. By repeating, but by increasing the set delay time for each process iteration, it is possible to measure up to the maximum delay time to exhibit the effect of accurately measuring the position of the object with respect to the entire radar measurement intervals, thereby increasing the industrial applicability.

Claims (6)

  1. 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버에 있어서,An ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal,
    일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)와 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하고, 샘플링제어신호를 샘플링모듈(400)로 제공하는 제어신호처리 과정을 수행하는 송수신제어신호발생모듈(100)과,A control signal processing process of providing a transmission control signal TX and a reception control signal RX, which are broadband impulse signals having a predetermined bandwidth, to the center frequency oscillation module 200 and providing a sampling control signal to the sampling module 400. Transmitting and receiving control signal generation module 100,
    상기 송신제어신호(TX)에 의해 턴 온(turn-on)되고, 송신제어신호(TX)에 의한 턴 온(turn-on)시 일정 대역폭을 갖는 광대역 임펄스 신호를 특정 중심주파수를 갖도록 하여 안테나모듈(300)에 제공하고, 수신제어신호(RX)에 의해 턴 온(turn-on)되고, 수신제어신호(RX)에 의해 턴 온(turn-on)시 안테나모듈(300)에서 수신된 신호 중 특정 중심주파수를 갖는 신호만을 샘플링모듈(400)로 제공하는 중심주파수발진모듈(200)과,The antenna module is turned on by the transmission control signal TX, and the wideband impulse signal having a predetermined bandwidth when turned on by the transmission control signal TX has a specific center frequency. A signal received from the antenna module 300 provided to the device 300 and turned on by the reception control signal RX, and turned on by the reception control signal RX. A center frequency oscillation module 200 for providing only a signal having a specific center frequency to the sampling module 400,
    상기 중심주파수발진모듈(200)에서 제공된 특정 중심주파수를 갖는 일정 대역폭을 갖는 광대역 임펄스 신호를 외부로 송신하고, 외부로부터 신호들을 수신하는 안테나모듈(300)과,An antenna module 300 for transmitting a wideband impulse signal having a predetermined bandwidth having a specific center frequency provided by the center frequency oscillation module 200 to the outside and receiving signals from the outside;
    중심주파수발진모듈(200)에서 제공한 특정 중심주파수를 갖는 신호를 상기 샘플링제어신호에 따라 일정시간(△st) 동안 샘플링하는 샘플링모듈(400)과,A sampling module 400 for sampling a signal having a specific center frequency provided by the center frequency oscillation module 200 for a predetermined time Δst according to the sampling control signal;
    샘플링된 신호를 디지털 신호로 변환하는 ADC모듈(500)과,An ADC module 500 for converting the sampled signal into a digital signal;
    상기 ADC모듈(500)에 의해 디지털 신호로 변환된 신호를 처리하는 신호처리모듈(600)을 포함하여 구성되는 것을 특징으로 하며,Characterized in that it comprises a signal processing module 600 for processing a signal converted into a digital signal by the ADC module 500,
    상기 송신제어신호(TX)는 중심주파수발진모듈(200)를 턴-온 시켜 송신모드로 동작하도록 하는 크기를 갖는 신호이고, 상기 수신제어신호(RX)는 중심주파수발진모듈(200)를 턴-온 시켜 수신모드로 동작시키도록 하는 크기를 갖는 신호로서 송신제어신호(TX)보다 작은 크기를 갖는 신호인 것을 특징으로 하는 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버.The transmission control signal TX is a signal having a magnitude to turn on the center frequency oscillation module 200 to operate in a transmission mode, and the reception control signal RX turns the center frequency oscillation module 200. An ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal, the signal having a magnitude that is turned on to operate in a reception mode.
  2. 제 1항에 있어서,The method of claim 1,
    상기 중심주파수발진모듈(200)이 안정적으로 최적 동작할 수 있는 바이어스 저항값을 설정 제어하기 위한 바이어스 제어신호를 생성하는 바이어스 제어모듈(700)을 더 포함하고,The center frequency oscillation module 200 further includes a bias control module 700 for generating a bias control signal for setting and controlling the bias resistance value that can be stably operated optimally,
    상기 바이어스 제어모듈(700)은 저항 R1,R2와 주변 온도에 따라 저항값이 가변하는 가변저항(Rt)을 포함하는 바이어스보상부(710)를 포함하는 것을 특징으로 하며,The bias control module 700 may include a bias compensator 710 including resistors R1 and R2 and a variable resistor Rt whose resistance value varies depending on the ambient temperature.
    상기 바이어스 제어모듈(700)은 바이어스보상부(710)를 구성하는 저항들(R1,R2,Rt)의 바이어스 저항값(R1,R2,Rt의 총 저항값)이 중심주파수발진모듈(200)이 안정적으로 최적 동작할 수 있는 바이어스 저항값을 갖도록 상기 바이어스 제어신호를 통해 설정 제어하고, The bias control module 700 may include a bias resistance value (total resistance values of R1, R2, and Rt) of the resistors R1, R2, and Rt constituting the bias compensator 710. Setting control through the bias control signal to have a bias resistance value that can stably operate optimally,
    상기 가변저항(Rt)은 바이어스보상부(710)를 구성하는 저항들(R1,R2,Rt)의 바이어스 저항값(R1,R2,Rt의 총 저항값)이 바이어스 제어모듈(700)에 의해 설정 제어된 바이어스 저항값이 되도록 주변 온도에 따라 자신의 저항값을 가변시키는 것을 특징으로 하는 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버.The variable resistor Rt is set by the bias control module 700 with the bias resistance values R1, R2, and Rt of the resistors 710 constituting the bias compensator 710. An ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal, characterized by varying its resistance value according to the ambient temperature to become a controlled bias resistance value.
  3. 제 1항에 있어서,The method of claim 1,
    상기 안테나모듈(300)을 통해 수신되는 반사신호들 중 상기 특정 중심주파수를 갖는 반사신호만을 필터링하여 중심주파수발진모듈(200)로 제공하는 수신신호필터링모듈(800)을 더 포함하여 구성되는 것을 특징으로 하는 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버.Characterized in that it further comprises a reception signal filtering module 800 for filtering only the reflection signal having the specific center frequency of the reflection signals received through the antenna module 300 to provide to the center frequency oscillation module 200. An ultra-wideband radar transceiver for transmitting and receiving an ultra-wideband impulse radar signal.
  4. 제 1항에 있어서,The method of claim 1,
    상기 샘플링모듈(400)에 의해 샘플링 된 신호값들을 저장하기 위해 상기 샘플링모듈(400)과 ADC 모듈(500) 사이에 형성되는 캐패시터모듈(900,Cx)을 더 포함하는 것을 특징으로 하는 초광대역 임펄스 레이더 신호를 송수신하는 초광대역 레이더 트랜시버.Ultra wide band impulse further comprises a capacitor module (900, Cx) formed between the sampling module 400 and the ADC module 500 for storing the signal values sampled by the sampling module 400 Ultra-wideband radar transceiver for transmitting and receiving radar signals.
  5. 제 1항에 있어서,The method of claim 1,
    상기 송수신제어신호발생모듈(100)이 수행하는 제어신호처리 과정은,The control signal processing process performed by the transmission / reception control signal generation module 100 includes:
    제1스텝에서 제n스텝까지 수행하는 과정을 포함하되,Including the process of performing from the first step to the n-th step,
    상기 제1스텝은,The first step,
    일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)를 중심주파수발진모듈(200)에 제공하고, 송신제어신호(TX) 제공 후, 설정된 제1지연시간(△t1) 경과 후 일정 대역폭을 갖는 광대역 임펄스 신호인 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하는 제1-1 스텝과The transmission control signal TX, which is a wideband impulse signal having a predetermined bandwidth, is provided to the center frequency oscillation module 200, and after the transmission control signal TX is provided, the transmission control signal TX has a predetermined bandwidth after the set first delay time? T1. A first-first step of providing a reception control signal RX, which is a broadband impulse signal, to the center frequency oscillation module 200;
    수신제어신호(RX) 제공 후, 샘플링 모듈(400)이 설정된 일정시간(△st) 동안 샘플링 하도록 하는 샘플링제어신호를 샘플링 모듈(400)로 제공하는 제1-2 스텝을 포함하고,And providing a sampling control signal to the sampling module 400 so that the sampling module 400 samples the predetermined time Δst after the reception control signal RX is provided.
    상기 제n스텝은,The nth step,
    일정 대역폭을 갖는 광대역 임펄스 신호인 송신제어신호(TX)를 중심주파수발진모듈(200)에 제공하고, 송신제어신호(TX) 제공 후, 설정된 제n지연시간(△tn) 경과 후 일정 대역폭을 갖는 광대역 임펄스 신호인 수신제어신호(RX)를 중심주파수발진모듈(200)에 제공하는 제n-1 스텝과The transmission control signal TX, which is a broadband impulse signal having a predetermined bandwidth, is provided to the center frequency oscillation module 200. After the transmission control signal TX is provided, the transmission control signal TX has a predetermined bandwidth after the set n-th delay time Δtn. N-th step of providing the reception control signal RX, which is a broadband impulse signal, to the center frequency oscillation module 200;
    수신제어신호(RX) 제공 후, 샘플링 모듈(400)이 설정된 일정시간(△st) 동안 샘플링 하도록 하는 샘플링제어신호를 샘플링 모듈(400)로 제공하는 제n-2 스텝을 포함하며,After the reception control signal (RX), and the sampling module 400 to provide a sampling control signal for sampling to the sampling module 400 for a predetermined predetermined time (Δst), and includes an n-2 step,
    상기 n은 2 이상 N 이하의 값으로서, 상기 제어신호처리 과정은 제1스텝부터 제N스텝가지 수행되는 것을 특징으로 하고, N is a value greater than or equal to 2 and less than or equal to N, wherein the control signal processing is performed from the first step to the Nth step.
    상기 N은 초광대역 레이더 트랜시버가 측정할 수 있는 탐지거리를 기본 단위거리로 나눈 값이고,N is a value obtained by dividing a detection distance that an ultra-wideband radar transceiver can measure by a basic unit distance,
    상기 기본 단위거리는 거리 측정을 위해 사전에 사용자에 의해 설정되는 단위 거리 값이고,The basic unit distance is a unit distance value previously set by the user for distance measurement,
    상기 설정된 제n지연시간인 △tn = (임펄스 레이다 신호가 레이더 트랜시버로부터 송신된 후 첫번째 기본 단위거리에서 반사되어 되돌아오기까지 걸리는 시간)×이고,[Delta] tn = Δtn = (time taken for the impulse radar signal to be reflected back from the first basic unit distance after being transmitted from the radar transceiver) ×,
    상기 샘플링을 위해 설정된 일정시간(△st)은 사전에 사용자에 의해 설정되는 시간인 것을 특징으로 하고,The predetermined time Δst set for the sampling may be a time set by a user in advance.
    상기 제1스텝부터 제N스텝까지의 각각의 스텝은 설정된 반복 횟수인 N1, N2, ....NN만금 반복 수행되고, 설정된 반복 횟수인 N1, N2, ....NN은 동일하거나 서로 다른 값인 것을 특징으로 하는 초광대역 레이더 트랜시버.Each step from the first step to the Nth step is repeatedly performed as set number of repetitions N1, N2, .... NN, and the set number of repetitions N1, N2, .... NN are the same or different. Ultra-wideband radar transceiver, characterized in that the value.
  6. 제1항 내지 제5항에 있어서,The method according to claim 1, wherein
    초광대역 레이더 트랜시버를 구성하는 각 모듈은 하나의 보드 또는 칩상에 구현됨으로 초광대역 레이더 트랜시버가 보드 타입 또는 칩 타입으로 형성되는 것을 특징으로 하는 초광대역 레이더 트랜시버.Each module constituting the ultra-wideband radar transceiver is implemented on one board or chip, the ultra-wideband radar transceiver characterized in that the ultra-wideband radar transceiver is formed of a board type or chip type.
PCT/KR2018/012423 2018-06-15 2018-10-19 Ultra-wideband radar transceiver for transmitting or receiving ultra-wideband impulse radar signal WO2019240334A1 (en)

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KR101239165B1 (en) * 2012-03-07 2013-03-05 국방과학연구소 Method and apparatus for estimating target direction

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JP2011117899A (en) * 2009-12-07 2011-06-16 Mitsubishi Electric Corp Radar device
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