WO2020238780A1 - Procédé et dispositif d'étalonnage fréquentiel, support d'informations et dispositif électronique - Google Patents

Procédé et dispositif d'étalonnage fréquentiel, support d'informations et dispositif électronique Download PDF

Info

Publication number
WO2020238780A1
WO2020238780A1 PCT/CN2020/091703 CN2020091703W WO2020238780A1 WO 2020238780 A1 WO2020238780 A1 WO 2020238780A1 CN 2020091703 W CN2020091703 W CN 2020091703W WO 2020238780 A1 WO2020238780 A1 WO 2020238780A1
Authority
WO
WIPO (PCT)
Prior art keywords
frequency
sweep
point
test
sampling
Prior art date
Application number
PCT/CN2020/091703
Other languages
English (en)
Chinese (zh)
Inventor
林洁
肖伟
陈豪
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2020238780A1 publication Critical patent/WO2020238780A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/091—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector using a sampling device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
    • H03M1/1245—Details of sampling arrangements or methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/16—Frequency regulation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter

Definitions

  • This application relates to the field of communications, for example, to a frequency calibration method and device, storage medium, and electronic device.
  • the frequency sweep method in the related art is a classic measurement method of the frequency characteristics of a linear system.
  • the frequency amplitude characteristics of the radio frequency signal within the effective bandwidth are sequentially obtained by changing the sweep frequency with a fixed step.
  • this measurement method there is a one-to-one correspondence between the time domain and the frequency domain of the signal.
  • Each progressive delay of the sweep frequency point must be greater than the delay of the digital filter. The wider the bandwidth, the more frequency points are measured. The frequency test time is also longer.
  • the embodiments of the present application provide a frequency calibration method and device, a storage medium, and an electronic device to at least solve the problems of long frequency sweeping time and frequency calibration in related technologies.
  • a frequency calibration method which includes: sweeping the received radio frequency signal and sampling the radio frequency signal at the same time to obtain the sweep frequency point and the sampling point respectively; when the sweep speed is different, If the link delay, sweep time step, and sampling time step are inconsistent, causing the frequency of the sweep frequency point to be different from the frequency corresponding to the sampling point, use the preset frequency calibration value to calibrate the frequency corresponding to the sampling point , So that the frequency corresponding to the sampling point is the same as the frequency of the sweep frequency point.
  • a frequency calibration device including: a processing module configured to sweep the received radio frequency signal and sample the radio frequency signal at the same time to obtain the sweep frequency point and the sampling point respectively;
  • the calibration module is set to use the preset frequency when the sweep speed is different, the link delay, the sweep time step, and the sampling time step are inconsistent, resulting in different frequencies of the sweep frequency point and the frequency corresponding to the sampling point.
  • the calibration value calibrates the frequency corresponding to the sampling point so that the frequency corresponding to the sampling point is the same as the frequency of the sweep frequency point.
  • a storage medium in which a computer program is stored, and the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.
  • an electronic device including a memory and a processor, the memory is stored with a computer program, and the processor is configured to run the computer program to execute any of the above Steps in the method embodiment.
  • FIG. 1 is a hardware structural block diagram of a mobile terminal of a frequency calibration method according to an embodiment of the present application
  • Fig. 2 is a flowchart of a frequency calibration method according to an embodiment of the present application
  • Figure 3 is a schematic diagram of the fast frequency sweeping system in this embodiment
  • FIG. 4 is a schematic diagram of a fast frequency sweeping process of an embodiment of the present application.
  • Figure 5 is a schematic diagram of calibration in this embodiment
  • Fig. 6 is a structural block diagram of a frequency calibration device according to an embodiment of the present application.
  • Fig. 1 is a hardware structural block diagram of a mobile terminal of a frequency calibration method according to an embodiment of the present application.
  • the mobile terminal 10 may include one or more (only one is shown in FIG. 1) processor 102 (the processor 102 may include but is not limited to a microprocessor (Microcontroller Unit, MCU) or programmable logic device (Field Programmable Gate Array, FPGA) and other processing devices) and a memory 104 configured to store data.
  • processor 102 may include but is not limited to a microprocessor (Microcontroller Unit, MCU) or programmable logic device (Field Programmable Gate Array, FPGA) and other processing devices
  • MCU Microcontroller Unit
  • FPGA Field Programmable Gate Array
  • the above-mentioned mobile terminal 10 may further include a transmission device 106 and an input/output device 108 for communication functions.
  • a transmission device 106 may further include a transmission device 106 and an input/output device 108 for communication functions.
  • the structure shown in FIG. 1 is only for illustration, and does not limit the structure of the above-mentioned mobile terminal.
  • the mobile terminal 10 may also include more or fewer components than those shown in FIG. 1, or have a different configuration from that shown in FIG.
  • the memory 104 may be configured to store computer programs, for example, software programs and modules of application software, such as the computer programs corresponding to the frequency calibration method in the embodiment of the present application.
  • the processor 102 executes the computer programs stored in the memory 104 by running A variety of functional applications and data processing, namely to achieve the above methods.
  • the memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory.
  • the memory 104 may further include a memory remotely provided with respect to the processor 102, and these remote memories may be connected to the mobile terminal 10 via a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
  • the transmission device 106 is configured to receive or transmit data via a network.
  • the above-mentioned specific example of the network may include a wireless network provided by the communication provider of the mobile terminal 10.
  • the transmission device 106 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station to communicate with the Internet.
  • the transmission device 106 may be a radio frequency (RF) module, which is configured to communicate with the Internet in a wireless manner.
  • RF radio frequency
  • FIG. 2 is a flowchart of a frequency calibration method according to an embodiment of the present application. As shown in FIG. 2, the process includes the following steps:
  • Step S202 Sweep the received radio frequency signal and sample the radio frequency signal at the same time to obtain the sweep frequency point and the sampling point respectively.
  • Step S204 in the case that the frequency of the frequency sweep point is different from the frequency corresponding to the sampling point due to the inconsistent frequency sweep speed, link delay, frequency sweep time step, and sampling time step, use the preset frequency calibration value Calibrate the frequency corresponding to the sampling point so that the frequency corresponding to the sampling point is the same as the frequency of the sweep frequency point.
  • the frequency sweep point and the sampling point can be obtained; the corresponding relationship between the time domain and the frequency domain of the RF signal changes, so that the frequency sweep speed is different, the link delay,
  • the sweep time step and the sampling time step are inconsistent, the frequency of the sweep frequency point is different from the frequency corresponding to the sampling point.
  • the preset frequency calibration value can be used to calibrate the frequency corresponding to the sampling point to make sampling The frequency corresponding to the point is the same as the frequency of the sweep frequency point.
  • the frequency can be calibrated under the condition of rapid frequency sweep. Therefore, the problems of long frequency sweeping time and frequency calibration can be solved, the frequency sweeping time can be shortened, and the effect of obtaining accurate frequency sweeping frequency information can be obtained.
  • the execution subject of the foregoing steps may be a terminal or the like, but is not limited thereto.
  • the sweep speed in this embodiment can be customized; sweep speed, link delay, sweep time step, and sampling time step parameters can be inconsistent; the frequency of the sweep frequency point and the sampling point correspond to The frequency is not consistent, that is, the frequency of the sweep frequency point and the frequency corresponding to the sampling point cannot correspond.
  • the inconsistent sweep speed, link delay, sweep time step, and sampling time step parameters mean that the sweep speed is different, the link delay is inconsistent, the sweep time step is inconsistent, and the sampling time step is inconsistent.
  • Different hardware designs have different link delays; for the same hardware design, sweep speed, sweep time step and sample time step are three parameters that can be adjusted in the sweep software solution. In the two sweeps, the above parameters are different and different results will be obtained, so frequency calibration is required.
  • the sweep speed can be determined by at least one of the following methods: sweep bandwidth (available by subtracting the starting frequency point) divided by sweep time; sweep frequency step divided by sweep time step; sweep two The frequency step corresponding to the sampling point is multiplied by the sampling rate (that is, divided by the sampling period).
  • the received radio frequency signal can be swept in the following ways: using a preset time step and a preset frequency step to determine the local oscillator signal; using the local oscillator within the preset radio frequency range
  • the signal sweeps the radio frequency signal.
  • the frequency sweep process essentially implements a frequency sweep operation on the frequency of the radio frequency signal within the effective bandwidth by fixing the frequency of the intermediate frequency signal and changing the frequency of the local oscillator signal.
  • the frequency sweep has a requirement for an effective bandwidth.
  • the frequency sweep process in this embodiment can effectively reduce the frequency sweep time compared to the frequency sweep manner in the related art.
  • the frequency sweep method in the related technology since each frequency point of the frequency sweep needs to wait for the link delay, in the operation of ultra-wideband communication equipment or test instruments, the sweep test time is too long, which will inevitably affect the normal system. jobs. For example, within a certain frequency sweep bandwidth and at a certain frequency sweep step, it is assumed that N frequency points need to be sampled, and the link delay is t'.
  • the link delay is t'
  • the frequency sweeping method in this embodiment greatly shortens the frequency sweeping time.
  • the test frequency deviates from the real signal due to the change in the corresponding relationship between the time domain and the frequency domain of the radio frequency signal. Therefore, the frequency needs to be calibrated to obtain accurate frequency information. Complete the sweep test effectively.
  • the ADC sampling in this embodiment is the sampling performed by the ADC, and what is obtained is the sampling point.
  • the frequency of the frequency sweep point and the frequency corresponding to the sampling point are different in the following manner: the correspondence between the time domain and the frequency domain of the radio frequency signal after the frequency sweep processing is performed is relative to When the correspondence between the time domain and the frequency domain of the radio frequency signal changes before the frequency sweep processing is performed, it is determined that the frequency of the sweep frequency point is different from the frequency corresponding to the sampling point.
  • the change in the correspondence between the time domain and the frequency domain of the radio frequency signal causes a deviation between the test frequency and the real signal.
  • the method before using the preset frequency calibration value to calibrate the frequency corresponding to the sampling point, the method further includes determining the preset frequency calibration value by at least the following method: determining to perform the test on the RF signal with a known frequency The frequency of the first test frequency sweep frequency point and the frequency of the second test frequency sweep frequency point obtained by the frequency sweep, wherein the first test frequency sweep frequency point and the second test frequency sweep frequency point are separated by a preset frequency; While performing the frequency sweep, the first test sampling point corresponding to the first test frequency sweep frequency point and the second test sampling point corresponding to the second test frequency sweep frequency point respectively obtained by sampling the test radio frequency signal; determine; The first frequency difference between the first test sweep frequency point and the second test sweep frequency point; determine the first test sampling point corresponding to the first test sweep frequency point and the second test sample point corresponding to the second test sweep frequency point Determine the first ratio of the first frequency difference to the sampling point difference; use the first ratio to determine the preset frequency calibration value.
  • Frequency point and frequency point have the same frequency meaning.
  • the frequency interval between the first frequency sweep and the second frequency sweep is as large as possible within the effective bandwidth.
  • determining the preset frequency calibration value by using the first ratio includes: when the ratio between the first ratio and the bandwidth value of the filter is within a preset threshold range, determining the frequency The third frequency difference between the starting frequency point when the known test radio frequency signal is swept and the frequency point corresponding to the start sampling point of the sampling signal, where the filter is used when the test radio frequency signal is swept.
  • the frequency point corresponding to the initial sampling point of the sampling signal is determined by the difference between the first test sweep frequency point minus the product of the first test sampling point and the first ratio; the second frequency difference The second ratio of the value to the first ratio is determined as the preset frequency calibration value.
  • determining the frequency of the first test sweep frequency point and the frequency of the second test sweep frequency point obtained by sweeping the test radio frequency signal with a known frequency includes: determining that the test radio frequency signal is being scanned. The frequency of the local oscillator signal and the frequency of the intermediate frequency signal at high frequency; use the correspondence between the local oscillator signal, the intermediate frequency signal and the test radio frequency signal, and the frequency of the local oscillator signal and the frequency of the intermediate frequency signal to determine the first test sweep The frequency of the frequency point and the frequency of the second test sweep frequency point.
  • calibrating the frequency corresponding to the sampling point by using the preset frequency calibration value includes: determining the frequency corresponding to the sampling point The difference in the number of points between the number of sampling points and the preset frequency calibration value; determine the product of the difference in the number of points and the first ratio to obtain the first product value; the sum of the first product and the frequency of the starting frequency of the radio frequency signal The value is determined as the frequency of the sweep frequency point corresponding to the sampling point; use the frequency of the sweep frequency point corresponding to the sample point to calibrate the frequency corresponding to the sampling point so that the frequency corresponding to the sampling point is the same as the frequency of the sweep frequency point the same.
  • the equipment is quickly swept frequency calibration, and the obtained calibration value is stored in the calibration file, and the calibration is called during the data processing process of the normal sweep test work.
  • the frequency calibration data in the file is compensated to ensure that the correct sampling frequency information corresponds to the real RF signal frequency information.
  • Fig. 3 is a schematic diagram of the fast frequency sweeping system in this embodiment.
  • the frequency synthesis module in the fast frequency sweeping system can be a high-speed self-sweeping frequency module.
  • the frequency Since the change in the correspondence between the time domain and the frequency domain of the radio frequency signal causes the test frequency to deviate from the real signal, the frequency must be calibrated to obtain the correct frequency information.
  • Fig. 4 is a schematic diagram of a fast frequency sweeping process of an embodiment of the present application.
  • Fig. 5 is a schematic diagram of calibration in this embodiment. As shown in Figs. 4 and 5, the frequency sweep test in the spectrum mode of the test instrument is taken as an example. Proceed as follows:
  • test frequency points are f RF1 and f RF2 respectively , and it is required that f RF1 and f RF2 be as large as possible in the effective bandwidth range.
  • the FPGA While using the local oscillator signal to sweep the RF signal, the FPGA acquires the current ADC sampling data x( ⁇ i ,i) by sampling at a time interval of 1/f s (f s is the corresponding digital filter sampling clock rate) ( ⁇ i corresponds to the sweep frequency of i*1/f s at the i-th sampling time), and through the calculation formula Obtain the corresponding calculated value.
  • the x( ⁇ i ,i) not obtained in the calculation formula is replaced with zero.
  • f Lo > f stop the frequency sweep ends, and f stop is f Lostop in S10.
  • h(.) represents the transfer function of the digital filter through which the ADC sampling obtains the value
  • y( ⁇ ') represents the output signal
  • n represents the obtained nth y( ⁇ ') value.
  • S60 Use MATLAB to process all the data obtained by frequency sweep to obtain the corresponding sampling value P, and extract the two larger sampling values P max1 and P max2 , these two data points correspond to the analog signals f RF1 and f respectively
  • the sampling point values of RF2 are N 1 and N 2 .
  • N delay N 1 -(f RF1 -f RFstart )/df.
  • this calibration method can be used in addition to the frequency sweep of the test instrument, and the application can also be used in the rapid frequency sweep detection of mobile communication equipment interference.
  • the steps are as follows:
  • the mobile communication device According to the frequency band information received by the mobile communication device, confirm f RFstart and f RFstop . According to the frequency conversion design scheme of the receiving link of the communication equipment, the corresponding local oscillator range is calculated as f Lostart ⁇ f Lo ⁇ f Lostop .
  • the frequency points are f RF1 and f RF2 respectively , and it is required that f RF1 and f RF2 be as large as possible in the effective bandwidth range.
  • the FPGA acquires the current ADC sampling data x( ⁇ i ,i)( ⁇ i ) at a time interval of 1/f s (f s is the corresponding digital filter sampling clock rate) Corresponding to the sweep frequency of i*1/f s at the time of the i-th sampling), and through the calculation formula Obtain the corresponding calculated value.
  • the x( ⁇ i ,i) not obtained in the calculation formula is replaced with zero.
  • f Lo > f stop the sweep ends.
  • sampling point values of RF2 are N 1 and N 2 .
  • N delay N 1 -(f RF1 -f RFstart )/df.
  • the fast frequency sweeping scheme can be applied to systems such as testing instruments and communication equipment interference frequency sweeping, there are also many specific system schemes (for example, RF frequency conversion has three schemes of high, low, intermediate frequency and zero intermediate frequency), frequency sweeping, etc.
  • the parameter setting can also be changed within a certain range.
  • the application of the method mentioned in the above example is just an example, not all the implementation methods that can be used for the corresponding function in the application.
  • the method according to the foregoing embodiment can be implemented by means of software plus a general hardware platform, and of course, it can also be implemented by hardware.
  • the technical solution of the present application can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, and optical disk), and includes multiple instructions to enable one
  • a terminal device which may be a mobile phone, a computer, a server, or a network device, etc. executes the methods described in the multiple embodiments of the present application.
  • a frequency calibration device is also provided, and the device is used to implement the above-mentioned embodiments and optional implementation manners, and those that have been described will not be repeated.
  • the term "module” can implement a combination of software and/or hardware with predetermined functions.
  • the devices described in the following embodiments can be implemented by software, implementation by hardware or a combination of software and hardware is also possible and conceived.
  • Fig. 6 is a structural block diagram of a frequency calibration device according to an embodiment of the present application.
  • the device includes: a processing module 62 and a calibration module 64.
  • the processing module 62 is configured to receive The received radio frequency signal is scanned, and the radio frequency signal is sampled at the same time to obtain the frequency sweep point and the sampling point respectively;
  • the calibration module 64 is connected to the processing module 62 mentioned above, and is set to operate at different sweep speeds, link delays, When the frequency sweep time step and the sample time step are inconsistent, the frequency of the sweep frequency point is different from the frequency corresponding to the sampling point, use the preset frequency calibration value to calibrate the frequency corresponding to the sampling point to make the sampling point The corresponding frequency is the same as the frequency of the sweep frequency point.
  • the frequency sweep frequency point and the sampling point can be obtained; the corresponding relationship between the time domain and the frequency domain of the radio frequency signal changes, resulting in different frequency sweep speeds, link delays, and The frequency sweep time step and the sampling time step are inconsistent, causing the frequency of the sweep frequency point to be different from the frequency corresponding to the sampling point.
  • the preset frequency calibration value can be used to calibrate the frequency corresponding to the sampling point to make the sampling point correspond to The frequency of is the same as the frequency of the sweep frequency point.
  • the frequency can be calibrated under the condition of rapid frequency sweep. Therefore, the problems of long frequency sweeping time and frequency calibration can be solved, the frequency sweeping time can be shortened, and the effect of obtaining accurate frequency sweeping frequency information can be obtained.
  • the execution subject of the foregoing steps may be a terminal or the like, but is not limited thereto.
  • the sweep speed in this embodiment can be customized; sweep speed, link delay, sweep time step, and sampling time step parameters can be inconsistent; the frequency of the sweep frequency point and the sampling point correspond to The frequency is not consistent, that is, the frequency of the sweep frequency point and the frequency corresponding to the sampling point cannot correspond.
  • the sweep speed can be determined by at least one of the following methods: sweep bandwidth (available by subtracting the starting frequency point) divided by sweep time; sweep frequency step divided by sweep time step; sweep two The frequency step corresponding to the sampling point is multiplied by the sampling rate (that is, divided by the sampling period).
  • the received radio frequency signal can be swept in the following ways: using a preset time step and a preset frequency step to determine the local oscillator signal; using the local oscillator within the preset radio frequency range The signal sweeps the radio frequency signal.
  • the frequency sweep process essentially implements the frequency sweep operation of the frequency of the radio frequency signal within the effective bandwidth by fixing the frequency of the intermediate frequency signal and changing the frequency of the local oscillator signal, and sweeps the requirements of the effective bandwidth.
  • the frequency sweep process in this embodiment can effectively reduce the frequency sweep time compared to the frequency sweep manner in the related art.
  • the frequency sweep method in the related technology since each frequency point of the frequency sweep needs to wait for the link delay, in the operation of ultra-wideband communication equipment or test instruments, the sweep test time is too long, which will inevitably affect the normal system. jobs. For example, within a certain frequency sweep bandwidth and at a certain frequency sweep step, it is assumed that N frequency points need to be sampled, and the link delay is t'.
  • the link delay is t'
  • the frequency sweeping method in this embodiment greatly shortens the frequency sweeping time.
  • the test frequency deviates from the real signal due to the change in the corresponding relationship between the time domain and the frequency domain of the radio frequency signal. Therefore, the frequency needs to be calibrated to obtain accurate frequency information. Complete the sweep test effectively.
  • the ADC sampling in this embodiment is the sampling performed by the ADC, and what is obtained is the sampling point.
  • the frequency of the frequency sweep point and the frequency corresponding to the sampling point are different in the following manner: the correspondence between the time domain and the frequency domain of the radio frequency signal after the frequency sweep processing is performed is relative to When the correspondence between the time domain and the frequency domain of the radio frequency signal changes before the frequency sweep processing is performed, it is determined that the frequency of the sweep frequency point is different from the frequency corresponding to the sampling point.
  • the change in the correspondence between the time domain and the frequency domain of the radio frequency signal causes a deviation between the test frequency and the real signal.
  • the method before using the preset frequency calibration value to calibrate the frequency corresponding to the sampling point, the method further includes determining the preset frequency calibration value by at least the following method: determining to perform the test on the RF signal with a known frequency The frequency of the first test frequency sweep frequency point and the frequency of the second test frequency sweep frequency point obtained by the frequency sweep, wherein the first test frequency sweep frequency point and the second test frequency sweep frequency point are separated by a preset frequency; While performing the frequency sweep, the first test sampling point corresponding to the first test frequency sweep frequency point and the second test sampling point corresponding to the second test frequency sweep frequency point respectively obtained by sampling the test radio frequency signal; determine; The first frequency difference between the first test sweep frequency point and the second test sweep frequency point; determine the first test sampling point corresponding to the first test sweep frequency point and the second test sample point corresponding to the second test sweep frequency point Determine the first ratio of the first frequency difference to the sampling point difference; use the first ratio to determine the preset frequency calibration value.
  • the frequency interval between the first frequency sweep and the second frequency sweep is as large as possible within the effective bandwidth.
  • determining the preset frequency calibration value by using the first ratio includes: when the ratio between the first ratio and the bandwidth value of the filter is within a preset threshold range, determining the frequency The third frequency difference between the starting frequency point of the known test radio frequency signal when sweeping and the corresponding frequency point of the starting sampling point of the sampled signal.
  • the filter is used when sweeping the test radio frequency signal.
  • the digital shaping filter used; the frequency point corresponding to the initial sampling point of the sampling signal is determined by the difference between the first test frequency point minus the product of the first test sampling point and the first ratio; the second ratio is determined as the preset Frequency calibration value.
  • determining the frequency of the first test sweep frequency point and the frequency of the second test sweep frequency point obtained by sweeping the test radio frequency signal with a known frequency includes: determining that the test radio frequency signal is being scanned. The frequency of the local oscillator signal and the frequency of the intermediate frequency signal at high frequency; use the correspondence between the local oscillator signal, the intermediate frequency signal and the test radio frequency signal, and the frequency of the local oscillator signal and the frequency of the intermediate frequency signal to determine the first test sweep The frequency of the frequency point and the frequency of the second test sweep frequency point.
  • calibrating the frequency corresponding to the sampling point by using the preset frequency calibration value includes: determining the frequency corresponding to the sampling point The fourth point difference between the number of sampling points and the preset frequency calibration value; determine the product of the fourth point difference and the first ratio to obtain the first product value; compare the first product with the frequency of the starting frequency of the radio frequency signal The sum value between is determined as the frequency of the sweep frequency point corresponding to the sampling point; use the frequency of the sweep frequency point corresponding to the sampling point to calibrate the frequency corresponding to the sampling point, so that the frequency and sweep frequency corresponding to the sampling point The frequency of the frequency point is the same.
  • the equipment is quickly swept frequency calibration, and the obtained calibration value is stored in the calibration file, and the calibration is called during the data processing process of the normal sweep test work.
  • the frequency calibration data in the file is compensated to ensure that the correct sampling frequency information corresponds to the real RF signal frequency information.
  • the above multiple modules can be implemented by software or hardware. For the latter, it can be implemented in the following way, but not limited to this: the above modules are all located in the same processor; or, the above multiple modules are Any combination of forms are located in different processors.
  • the embodiment of the present application also provides a storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any of the foregoing method embodiments when running.
  • the foregoing storage medium may be configured to store a computer program for executing the foregoing multiple steps.
  • the aforementioned storage medium may include, but is not limited to: U disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), mobile hard disk, magnetic disk Various media that can store computer programs such as discs or optical discs.
  • the embodiment of the present application also provides an electronic device, including a memory and a processor, the memory is stored with a computer program, and the processor is configured to run the computer program to execute the steps in any of the foregoing method embodiments.
  • the aforementioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the aforementioned processor, and the input-output device is connected to the aforementioned processor.
  • the foregoing processor may be configured to execute the foregoing steps through a computer program.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

L'invention concerne un procédé et un dispositif d'étalonnage fréquentiel, un support d'informations et un dispositif électronique. Le procédé consiste : à effectuer un balayage fréquentiel sur un signal radioélectrique reçu et à échantillonner le signal radioélectrique pour obtenir respectivement un point de balayage fréquentiel et un point d'échantillonnage ; lorsque la fréquence du point de balayage fréquentiel et la fréquence correspondant au point d'échantillonnage diffèrent en raison d'une différence de vitesse de balayage fréquentiel ainsi que d'une incohérence de retard de liaison, étape de temps de balayage fréquentiel et étape de temps d'échantillonnage, à utiliser une valeur prédéfinie d'étalonnage fréquentiel pour étalonner la fréquence correspondant au point d'échantillonnage, pour que la fréquence correspondant au point d'échantillonnage soit la même que celle du point de balayage fréquentiel.
PCT/CN2020/091703 2019-05-28 2020-05-22 Procédé et dispositif d'étalonnage fréquentiel, support d'informations et dispositif électronique WO2020238780A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910453251.8 2019-05-28
CN201910453251.8A CN112019317B (zh) 2019-05-28 2019-05-28 频率校准方法及装置、存储介质、电子装置

Publications (1)

Publication Number Publication Date
WO2020238780A1 true WO2020238780A1 (fr) 2020-12-03

Family

ID=73501767

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/091703 WO2020238780A1 (fr) 2019-05-28 2020-05-22 Procédé et dispositif d'étalonnage fréquentiel, support d'informations et dispositif électronique

Country Status (2)

Country Link
CN (1) CN112019317B (fr)
WO (1) WO2020238780A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115455745A (zh) * 2022-11-09 2022-12-09 深圳飞骧科技股份有限公司 自适应频点采样的扫频方法、系统及相关设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102109555A (zh) * 2009-12-24 2011-06-29 北京普源精电科技有限公司 具有数字中频信号处理系统的频谱分析仪及其实现方法
US20170019272A1 (en) * 2015-07-16 2017-01-19 LGS Innovations LLC Self-intererence channel estimation system and method
US20180146083A1 (en) * 2015-07-15 2018-05-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus for mobile application and frequency spectrum generator
CN109407071A (zh) * 2018-12-13 2019-03-01 广州极飞科技有限公司 雷达测距方法、雷达测距装置、无人机和存储介质

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4977443B2 (ja) * 2006-10-31 2012-07-18 日立オートモティブシステムズ株式会社 レーダ装置及びレーダ検出方法
JP5317851B2 (ja) * 2009-06-26 2013-10-16 新日本無線株式会社 周波数掃引回路
CN104661287B (zh) * 2015-03-23 2019-02-22 重庆邮电大学 一种支持多模的并行多通道快速扫频方法及系统
US9413523B1 (en) * 2015-04-24 2016-08-09 Inphi Corporation Frequency acquisition for SERDES receivers
CN106886002B (zh) * 2015-12-15 2020-10-27 普源精电科技股份有限公司 一种频谱分析仪的校准方法
CN107872283B (zh) * 2016-09-28 2021-06-25 中兴通讯股份有限公司 一种扫频方法及装置
CN109474359B (zh) * 2017-09-08 2020-10-20 电信科学技术研究院 一种扫频方法、终端设备及存储介质
CN108020803B (zh) * 2017-11-21 2019-09-24 中国电子科技集团公司第四十一研究所 一种任意波形发生器幅度扫频估计校准方法
CN109714118A (zh) * 2019-02-13 2019-05-03 南京迅测科技有限公司 针对5g外场扫频接收机实现功率校准处理的系统及其方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102109555A (zh) * 2009-12-24 2011-06-29 北京普源精电科技有限公司 具有数字中频信号处理系统的频谱分析仪及其实现方法
US20180146083A1 (en) * 2015-07-15 2018-05-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus for mobile application and frequency spectrum generator
US20170019272A1 (en) * 2015-07-16 2017-01-19 LGS Innovations LLC Self-intererence channel estimation system and method
CN109407071A (zh) * 2018-12-13 2019-03-01 广州极飞科技有限公司 雷达测距方法、雷达测距装置、无人机和存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZTE CORPORATION: "Considerations on Sweeping Time Interval in NR", 3GPP TSG RAN WG1 MEETING #86B R1-1608966, 14 October 2016 (2016-10-14), XP051149019, DOI: 20200807102244A *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115455745A (zh) * 2022-11-09 2022-12-09 深圳飞骧科技股份有限公司 自适应频点采样的扫频方法、系统及相关设备

Also Published As

Publication number Publication date
CN112019317A (zh) 2020-12-01
CN112019317B (zh) 2022-10-28

Similar Documents

Publication Publication Date Title
US10459407B1 (en) DTC based carrier shift—online calibration
CN107797099B (zh) 一种多通道数字接收机实时内定标处理方法及装置
CN107402597B (zh) 一种数据与时钟对齐的方法、装置、介质及磁共振设备
JP7164725B2 (ja) 測定方法及び機器
WO2020238780A1 (fr) Procédé et dispositif d'étalonnage fréquentiel, support d'informations et dispositif électronique
CN114421977A (zh) 一种通信设备用晶体振荡器频率的快速校准装置和方法
CN111988063B (zh) 一种用于综合测试仪的线缆损耗补偿方法及系统
CN109586724B (zh) Dac输出信号初相位调节方法及多通道dac同步方法
WO2010034221A1 (fr) Procédé de correction de puissance s'adaptant à de multiples bandes passantes de signal
CN107872283B (zh) 一种扫频方法及装置
US11716152B2 (en) Transceiver and transceiver calibration method
CN113285856B (zh) 数据传输时延的处理方法及系统和数据传输方法及系统
WO2023015556A1 (fr) Procédé et appareil de détermination de distance, dispositif, et support de stockage
CN104703268B (zh) 滤波器功率补偿方法、装置及用户终端
CN113805042B (zh) 时延测量装置及测试方法
US11112456B2 (en) Signal skew measurement method, apparatus, medium, and electronic device
CN104158601A (zh) 一种基于数字信道化的幅度相位校准方法
US9124323B2 (en) Interference reduction method
CN110658496B (zh) 雷达信号生成方法、装置及雷达
Casparsen et al. Bluetooth Low Energy with Software-Defined Radio: Proof-of-Concept and Performance Analysis
CN111257883A (zh) 一种相控阵天气雷达系统的标校装置及方法
US10222419B2 (en) Method, system and apparatus for tuning an integrated embedded subsystem
CN111224909A (zh) 一种频率补偿方法、装置、用户终端和存储介质
JP5879372B2 (ja) 信号解析装置および信号解析方法
CN110658497B (zh) 雷达信号生成方法、装置及雷达

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20813764

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20813764

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205 DATED 21/04/2022)