CN102236094A - Method integrating radar detection function with microwave communication function - Google Patents
Method integrating radar detection function with microwave communication function Download PDFInfo
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- CN102236094A CN102236094A CN2010101516921A CN201010151692A CN102236094A CN 102236094 A CN102236094 A CN 102236094A CN 2010101516921 A CN2010101516921 A CN 2010101516921A CN 201010151692 A CN201010151692 A CN 201010151692A CN 102236094 A CN102236094 A CN 102236094A
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Abstract
The invention discloses a method integrating a radar detection function with a microwave communication function, which is characterized by comprising the following steps of: measuring the speed of high-speed movement equipment by transmitting a measuring signal to obtain corresponding Doppler frequency shift; providing a frequency source by using a signal processing device, and selecting a waveform code corresponding to a frequency fdata; and transmitting carrier frequency signals with frequencies f0 to fd at a transmitting end during communication, wherein the frequency of a receiver is the same as that of the carrier frequency signals transmitted at the transmitting end, and a signal receiving device of the high-speed movement equipment and a signal receiving device of the common low-speed movement or static equipment have the same structure. The technology overcomes the defect that the signal receiving device in the high-speed movement equipment and the signal receiving device in the low-speed movement or static equipment have different structures because compensation is performed at a signal receiving end of the high-speed movement equipment in the conventional radio communication system.
Description
Technical field
The present invention relates to a kind of radar detection function and microwave communication function integration method, belong to the radar and the communications field, particularly communicating by letter between radar and the high-speed moving object.
Background technology
During radio communication, the relative motion between the two of radar and high-speed motion apparatus will cause the Doppler shift of radio carrier frequency signal, can cause communication between the two to be obstructed when frequency shift amount is excessive, need to carry out Doppler shift compensation for this reason.Traditional radio communications system adopts the received signal end at high-speed motion apparatus to carry out this compensation, this compensation way need be done corresponding the improvement to signal receiving device, cause on interior signal receiving device of high-speed motion apparatus and the signal receiving device structure in the static equipment different, cause the manufacturing cost height of equipment, increased problems such as complex structural designs.
In the prior art, also relate to the improved open source literature of The radar exploration technique, for example application number is 95195367.2 application for a patent for invention " radar detedtor ", involved a kind of radar detedtor, comprise that the parts (RS) that a generation transmits link together with a phase-shifter (MWPS) and a detuner (DM), in order outwards to transmit and to transmit in order to receive, phase-shifter (MWPS) links together with an antenna (A), a demultiplexer (DEMUX) is connected the back of detuner (DM), controlled by the beat of switching signal (U (t)) with phase-shifter (MWPS), the output terminal of demultiplexer (DEMUX) always is connected with a low-pass filter (TP), can obtain output signal from this wave filter.Yet the shortcoming that this utility model exists is: the radar detedtor of this invention is mainly used in the solution noise problem, radar detection and microwave communication function integration technology is not improved.
And for example application number is 01104940.5 patent of invention " control method of wide-band radar detector and device ", relate to a kind of control method of wide-band radar detector and device, particularly disclose the control method and the device of a kind of guided vehicle safe driving detectable signal and car speed detection radar signal.This device comprises wave filter, detuner, analog to digital converter, microprocessor, pulse daley part, the scanning voltage generator of first order local oscillator, the first order amplifier of a side that is installed in horn antenna, the second level local oscillator that comprises three oscillators, second level amplifier, selective filter, laser module, audio signal output device, visual signal output unit and the selector switch of reception laser signal.This control method and device of inventing described wide-band radar detector can be surveyed broadband signal, prevents that fault from taking place, and has less size; And,, can help the driver to be well understood to surrounding environment, the generation that tries to forestall traffic accidents by radar detedtor.The shortcoming that this invention exists is: the radar detedtor of this invention is mainly used in the detection broadband signal, and the accident that prevents takes place, but radar detection and microwave communication function integration technology is not improved.
Therefore, be necessary to design a kind of radar detection and microwave communication function integration method that can overcome above-mentioned shortcoming, to fill up the technological gap of this respect.
Summary of the invention
The purpose of this invention is to provide a kind of method that collects radar detection and microwave communication function integration, store corresponding doppler shift data compared to traditional at receiving end, and it is carried out the frequency drift compensation technology, can reduce relevant operand, simplify the hardware configuration of high-speed motion apparatus signal receiving device.
The technical solution adopted in the present invention is: a kind of radar detection and microwave communication function integration method, it is characterized in that: the speed of measuring high-speed motion apparatus by the emission measured signal, draw corresponding Doppler shift, provide frequency source by signal processing apparatus, the selection respective frequencies is f
DataThe waveform sign indicating number, be f in the transmitting terminal transmission frequency during communication
0-f
dCF signal, the CF signal frequency that the frequency of receiver and transmitting terminal send is identical, the signal receiving device of high-speed motion apparatus is identical with the signal receiving device structure of common low-speed motion or static equipment.The technique effect that brings thus is at least: this radar be used for common low-speed motion or high-speed motion apparatus between communicate by letter the time, do not change on the transmitter and receiver structure of radar, but when communicating by letter with high-speed motion apparatus, corresponding improvement has been done in transmitting of radar, store corresponding doppler shift data compared to traditional at receiving end, and it is carried out the frequency drift compensation technology, and can reduce relevant operand, simplify the hardware configuration of high-speed motion apparatus signal receiving device.
Aforesaid radar detection and microwave communication function integration method, it is characterized in that: described radar emission signal, receiver receive its corresponding received signal, transmit and received signal comprise: measured signal: be used to survey the speed of high-speed motion apparatus, this measured signal is a simple signal; Signal of communication: the frequency modulation that is used to communicate by letter or the phase-modulated signal of radar emission.The technique effect that brings thus is at least: make this radar emission signal, received signal can be used to receive the detection signal of ordinary movement object and high-speed moving object simultaneously.
Aforesaid radar detection and microwave communication function integration method is characterized in that: the receiving end of described radar system, obtain Doppler shift f according to the measured signal in the received signal
dThe technique effect that brings thus is at least: make the receiving end of this radar-probing system can realize reducing relevant operand, simplify the hardware configuration of high-speed motion apparatus signal receiving device.
Aforesaid radar detection and microwave communication function integration method is characterized in that: the frequency source of described radar system, and according to Doppler shift f
d, select corresponding waveform sign indicating number, make that the frequency of receiver is identical with the frequency of CF signal.The technique effect that brings thus is at least: make the receiving end of this radar-probing system can realize reducing relevant operand, simplify the hardware configuration of high-speed motion apparatus signal receiving device.
The invention has the beneficial effects as follows: this radar of the present invention be used for common low-speed motion or high-speed motion apparatus between communicate by letter the time, do not change on the transmitter and receiver structure of radar, but when communicating by letter with high-speed motion apparatus, corresponding improvement has been done in transmitting of radar, store corresponding doppler shift data compared to traditional at receiving end, and it is carried out the frequency drift compensation technology, and can reduce relevant operand, simplify the hardware configuration of high-speed motion apparatus signal receiving device.
Description of drawings
Fig. 1 is the signal composition diagram of embodiment of the invention radar detection and microwave communication integral method.
Fig. 2 is the process flow diagram of embodiment of the invention radar when being used to test the speed.
Fig. 3 is the process flow diagram of embodiment of the invention radar when being used to communicate by letter.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Radar detection function that the embodiment of the invention provides and microwave communication function integration method, device therefor mainly comprises: measured signal unit, signal of communication unit, the unit that transmits, received signal unit, frequency source, signal processing system, radar transmitter, receiver, high-speed motion apparatus signal receiver.
As shown in Figure 1, a kind of signal composition frame chart of having gathered radar detection function and microwave communication function integration Doppler shift compensation technological system, transmitting among the figure comprises measured signal and signal of communication.
Measured signal is used to measure the speed of high-speed motion apparatus.Consider that frequency spectrum is simple, measured signal is selected simple signal.
Signal of communication is a radar when being used for communication function, the data-signal of being launched, and this signal is for through frequency modulation or phase-modulated signal behind the Doppler shift compensation.
Measured signal and signal of communication superposition are formed transmitting of this radar system.The technique effect that brings thus is at least: make this radar emission signal, received signal can be used to receive the detection signal of ordinary movement object and high-speed moving object simultaneously.
Measured signal in the radar emission signal is launched by transmitter, propagate to arrive moving object after, reflex to receiver, the echoed signal that is received is received signal, comprises the speed v of moving object in the received signal, according to Doppler shift formula:
f
d＝2v/λ
Wherein v is the speed of moving object, and λ is a radar wavelength, can draw the Doppler shift f of moving object
d
During communication, radar is according to the Doppler shift f that obtains
d, its frequency source is selected corresponding waveform sign indicating number f
Data, making the communication signal frequency in transmitting is f
0-f
d, be f then for Doppler shift
dHigh-speed motion apparatus, the frequency of its receiver still is f
0Thereby, make to reach stable communicating by letter between radar and the high-speed motion apparatus.
Flow process when as shown in Figure 2, radar is used to test the speed: at first the transmitter transmitting carrier frequency is f
0Simple signal, through sports equipment reflection, can record the speed v of sports equipment at receiving end, thereby obtain the Doppler shift f of equipment
d
Flow process when as shown in Figure 3, radar is used to communicate by letter: according to the Doppler shift f of equipment
d, frequency source is selected corresponding waveform sign indicating number f
Data, make that the CF signal of transmitter emission is f
0-f
d, then radar and high-speed motion apparatus is relative static, can realize stable communication.Reach receiver section and need not make an amendment effect.
Among the present invention, when radar is used for communication between common and the high-speed motion apparatus, the transmitter and receiver of radar is as broad as long, but when communicating by letter with high-speed motion apparatus, corresponding improvement has been done in transmitting of radar, stores corresponding doppler shift data compared with traditional at receiving end, and it is compensated, reduce relevant operand, and simplified the hardware configuration of receiving end.
Claims (4)
1. radar detection and microwave communication function integration method is characterized in that: measure the speed of high-speed motion apparatus by the emission measured signal, draw corresponding Doppler shift, provide frequency source by signal processing apparatus, the selection respective frequencies is f
DataThe waveform sign indicating number, be f in the transmitting terminal transmission frequency during communication
0-f
dCF signal, the CF signal frequency that the frequency of receiver and transmitting terminal send is identical, the signal receiving device of high-speed motion apparatus is identical with the signal receiving device structure of common low-speed motion or static equipment.
2. radar detection according to claim 1 and microwave communication function integration method, it is characterized in that: described radar emission signal, receiver receive its corresponding received signal, transmit and received signal comprise: measured signal: be used to survey the speed of high-speed motion apparatus, this measured signal is a simple signal; Signal of communication: the frequency modulation that is used to communicate by letter or the phase-modulated signal of radar emission.
3. radar detection according to claim 1 and microwave communication function integration method is characterized in that: the receiving end of described radar system, obtain Doppler shift f according to the measured signal in the received signal
d
4. radar detection according to claim 1 and microwave communication function integration method is characterized in that: the frequency source of described radar system, and according to Doppler shift f
d, select corresponding waveform sign indicating number, make that the frequency of receiver is identical with the frequency of CF signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010151692 CN102236094B (en) | 2010-04-21 | 2010-04-21 | Method integrating radar detection function with microwave communication function |
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| CN 201010151692 CN102236094B (en) | 2010-04-21 | 2010-04-21 | Method integrating radar detection function with microwave communication function |
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| CN102236094A true CN102236094A (en) | 2011-11-09 |
| CN102236094B CN102236094B (en) | 2013-06-19 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630890A (en) * | 2013-09-02 | 2014-03-12 | 中国科学院电子学研究所 | Adaptive microwave speed measurement device and method thereof |
| CN104155637A (en) * | 2014-08-30 | 2014-11-19 | 电子科技大学 | Radar and communication integrated method based on stepping variable-frequency waves |
| CN106019282A (en) * | 2016-05-04 | 2016-10-12 | 常州工学院 | Vehicle-mounted millimeter wave detection and communication integrated sensor applied to smart traffic system |
| CN106249231A (en) * | 2016-07-12 | 2016-12-21 | 电子科技大学 | A kind of radar-communication integration system based on CE OFDM |
| CN107770109A (en) * | 2017-10-19 | 2018-03-06 | 厦门大学 | A kind of communication detecting integration signal design method and device based on phase modulation position |
| CN111105510A (en) * | 2019-12-26 | 2020-05-05 | 成都纳雷科技有限公司 | ETC radar signal generation method and system based on statistical prior and storage medium |
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Patent Citations (6)
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| US4484193A (en) * | 1975-11-06 | 1984-11-20 | Lockheed Electronics Corp. | Radar apparatus for detecting and/or classifying an agitated reflective target when relative translation obtains |
| CN1021601C (en) * | 1989-10-26 | 1993-07-14 | 外沙拉股份公司 | Method and device for measuring velocity of target by utilizing doppler shift of electromagnetic radiation |
| US5808741A (en) * | 1996-06-26 | 1998-09-15 | The United States Of America As Represented By The Secretary Of The Navy | Method for remotely determining sea surface roughness and wind speed at a water surface |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630890A (en) * | 2013-09-02 | 2014-03-12 | 中国科学院电子学研究所 | Adaptive microwave speed measurement device and method thereof |
| CN103630890B (en) * | 2013-09-02 | 2015-11-18 | 中国科学院电子学研究所 | A kind of adaptive microwave speed measuring device and method thereof |
| CN104155637A (en) * | 2014-08-30 | 2014-11-19 | 电子科技大学 | Radar and communication integrated method based on stepping variable-frequency waves |
| CN106019282A (en) * | 2016-05-04 | 2016-10-12 | 常州工学院 | Vehicle-mounted millimeter wave detection and communication integrated sensor applied to smart traffic system |
| CN106019282B (en) * | 2016-05-04 | 2019-02-22 | 常州工学院 | Vehicle-mounted millimeter wave detection and the communicating integral sensor of wisdom traffic system application |
| CN106249231A (en) * | 2016-07-12 | 2016-12-21 | 电子科技大学 | A kind of radar-communication integration system based on CE OFDM |
| CN106249231B (en) * | 2016-07-12 | 2018-09-04 | 电子科技大学 | A kind of radar-communication integration system based on CE-OFDM |
| CN107770109A (en) * | 2017-10-19 | 2018-03-06 | 厦门大学 | A kind of communication detecting integration signal design method and device based on phase modulation position |
| CN111105510A (en) * | 2019-12-26 | 2020-05-05 | 成都纳雷科技有限公司 | ETC radar signal generation method and system based on statistical prior and storage medium |
| CN111105510B (en) * | 2019-12-26 | 2022-01-04 | 成都纳雷科技有限公司 | ETC radar signal generation method and system based on statistical prior and storage medium |
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| CN102236094B (en) | 2013-06-19 |
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