CN109254173A - Multiple target radar meter in-site modeling detection method and detection device - Google Patents
Multiple target radar meter in-site modeling detection method and detection device Download PDFInfo
- Publication number
- CN109254173A CN109254173A CN201811256332.0A CN201811256332A CN109254173A CN 109254173 A CN109254173 A CN 109254173A CN 201811256332 A CN201811256332 A CN 201811256332A CN 109254173 A CN109254173 A CN 109254173A
- Authority
- CN
- China
- Prior art keywords
- tachymeter
- tested
- signal
- angle
- doppler
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
- G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses a kind of multiple target radar meter in-site modeling detection method and detection devices, including cover simulation detection unit and industrial personal computer, microwave frequency counter more；Analog detection unit includes the point of automatic tracking system being arranged on holder, rangefinder, Doppler signal target simulator and display screen；Point of automatic tracking system determines the relative angle of tachymeter；At a distance from rangefinder determines tachymeter between Doppler signal target simulator；The tranmitting frequency of microwave frequency counter measurement tachymeter；Tested tachymeter is fed back to after Doppler's target simulator modulation tachymeter signal and corresponding speed Doppler signal；Tested tachymeter detects that Doppler frequency shows corresponding velocity amplitude；Display screen shows velocity amplitude, azimuth, pitch angle and distance；Industrial personal computer connects angle automatic tracking system, rangefinder, Doppler's target simulator, display screen, microwave frequency counter, is automatically performed entire detection process；The present invention can be achieved to simulate while the multiple targets in tachymeter scene.
Description
Technical field
The invention belongs to radar meter detection field, especially a kind of multiple target radar meter in-site modeling detection side
Method and detection device.
Background technique
For the traffic accident for reducing initiation of driving over the speed limit, traffic management department generally uses radar meter to motor vehicle vehicle
Speed is monitored.Traditional motor vehicle radar meter generally captures the speed of single target, and angular effect passes through to established angle
The amendment of degree is eliminated.In recent years, domestic and international Some Enterprises start to invest multiple target radar meter into market, this to test the speed
Instrument can also measure the relative distance and relative angle between target and radar meter in addition to it can capture simultaneously the speed of multiple targets
Degree, to distinguish different targets.
Current detection method both domestic and external generally based on the international recommendation R91 of International Legal Organization (OIML),
By providing one group of ideal standard speed Doppler signal, to the velocity accuracy and measurement range of motor vehicle radar meter
It is detected.This method be 2002 propose, due at that time there are no multiple target radar meters in the market, so method
Only considered the measurement of single goal and speed parameter, cannot to multiple targets and its corresponding speed, distance, angle parameter into
Row composite measurement.Chinese patent ZL 2,015 1 0055898.7 discloses a kind of motor vehicle radar meter on-site detecting device,
To realize the detection of single goal, and the method that the device uses similar antenna radiation pattern, pass through microwave power meter and closed-loop control
The collaborative work of holder, makes simulator antenna alignment be detected radar meter, which is determined by finding power maximum point
Tested tachymeter position, due to the power maximum point detected every time be it is unknown, need to find that measured value is super during the scanning process
Peak position is returned to after crossing peak value, thus there is a problem of that alignment speed is slower.Further, since the transmission power of tested tachymeter
In certain fluctuation, the ambient noise of surrounding enviroment is also possible to have an impact detection, so that there are alignment precisions is relatively low
Problem.
Summary of the invention
The purpose of the present invention is to provide a kind of multiple target radar meter in-site modeling detection method and detection device, with
It is simulated while realizing multiple target radar meter scene.
The technical solution for realizing the aim of the invention is as follows:
A kind of multiple target radar meter in-site modeling detection device, including more cover simulation detection unit, with industrial personal computer, micro-
Wave frequency rate meter constitutes analog detection array together；The analog detection unit includes the point of automatic tracking system being arranged on holder
System, rangefinder, Doppler signal target simulator and display screen；The point of automatic tracking system is to determine tested test the speed
The azimuth of instrument and pitch angle；The rangefinder to determine between tested tachymeter and Doppler signal target simulator away from
From；The microwave frequency counter measures the Microwave emission frequency of tested radar meter；Doppler's target simulator receives
The microwave signal of tested tachymeter modulates tested tachymeter microwave signal and feeds back to signal with after corresponding speed Doppler signal
Tested tachymeter；Tested tachymeter detects Doppler frequency, is shown as corresponding velocity amplitude；Display screen shows Doppler's target
The distance that the azimuth of velocity amplitude, holder feedback that simulator is simulated and pitch angle and rangefinder measure；The industry control
Machine connects more set point of automatic tracking systems, rangefinder, Doppler's target simulator, display screen simultaneously, and connects Microwave Frequency
Rate meter carries out tested tachymeter Microwave emission frequency, azimuth, pitch angle, the measurement of range data, reception and processing, control
The operation of each functional unit, coordinate detection device simultaneously in the operation of more than two positions, simulate multiple targets, and be automatically performed whole
A detection process.
More set simulation detection units are placed in tested by a kind of multiple target radar meter in-site modeling detection method respectively
In lane, and it can be passed through by closed-loop control cloud platform rotation, the angle of point of automatic tracking systematic survey itself and tested tachymeter
Holder adjustment angle tends to 0；Microwave frequency counter measures the Microwave emission frequency f of tested radar meter0, obtain each analog detection
Azimuth of the unit relative to detected tachymeter, pitch angle, and pass through stadia surveying analog detection unit and tested radar
The distance of tachymeter；Calculate analog detection unit Doppler frequency f corresponding to different analog rate v of different locationd；It is more
General Le frequency completes f after the modulation of Doppler's target simulator0±fdModulated process, and load on TCH test channel, by micro-
Modulated microwave modulated signal is transmitted back to tested vehicle radar meter by band antenna, after tested radar meter receives modulation
Microwave modulated signal, detect Doppler frequency fd, and it is shown as corresponding velocity amplitude.
Compared with prior art, the present invention its remarkable advantage:
(1) multiple target radar meter in-site modeling detection device of the invention, uses Monopulse estimation, as long as angle is believed
Number it is reduced to 0, that is, can determine that antenna alignment target, efficiency increase；Due to having used the ratio operation of difference and wave beam, quilt
The amplitude for examining tachymeter signal will not generate interference to the accuracy of angle measurement result.
(2) multiple target radar meter in-site modeling detection device of the invention, by cover more point of automatic tracking system,
The use of rangefinder, Doppler signal target simulator makes it constitute analog detection battle array together with industrial personal computer, microwave frequency counter
Column, can simulate the information such as speed, distance, azimuth, pitch angle of more trolleys in tachymeter detection zone simultaneously, solve
Limitation of the conventional method only for single target.
(3) multiple target radar meter in-site modeling detection device of the invention, shows each simulation mesh by display screen
Target driving parameters can obtain coherent detection parameter by the mating video camera of tachymeter in real time, solve device and be detected
The efficiency bottle neck that data circulation is carried out between instrument, provides a science, safe and efficient scene for multiple target radar meter
Analog detection scheme.
(4) multiple target radar meter in-site modeling detection method of the invention, can be realized while simulating more trolleys
The information such as speed, distance, azimuth, pitch angle in tachymeter detection zone.
Present invention is further described in detail with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is that multiple target radar meter in-site modeling detection device of the invention constitutes schematic diagram.
Fig. 2 is multiple target radar meter in-site modeling detection method layout drawing of the invention.
Specific embodiment
In order to illustrate technical solution of the present invention and technical purpose, with reference to the accompanying drawing and specific embodiment is the present invention
It is further to introduce.
A kind of multiple target radar meter in-site modeling detection device of the invention, including the more set analog detection lists of setting
Member constitutes analog detection array together with industrial personal computer, microwave frequency counter.The analog detection unit includes being arranged on holder
Point of automatic tracking system, rangefinder, Doppler signal target simulator and display screen.The point of automatic tracking system is used
To determine azimuth and the pitch angle of tested tachymeter, and feed back to industrial personal computer；
The rangefinder to determine tested tachymeter between Doppler signal target simulator at a distance from, believe with angle
Breath determines position of the tested tachymeter with respect to Doppler's target simulator together.The microwave frequency counter measures tested radar and surveys
The Microwave emission frequency of fast instrument.By each Doppler signal target simulator while launching simulation signal tests the speed to tested
Instrument completes the real-time simulation of different location, multiple targets.Doppler's target simulator receives the microwave letter of tested tachymeter
Number, tested tachymeter microwave signal is modulated with after corresponding speed Doppler signal, and signal is fed back into tested tachymeter.It is detected
Fast instrument detects Doppler frequency, is shown as corresponding velocity amplitude.Display screen shows what Doppler's target simulator was simulated
The distance that velocity amplitude, the azimuth of holder feedback and pitch angle and rangefinder measure.Industrial personal computer connects more set angles certainly simultaneously
Motion tracking system, rangefinder, Doppler's target simulator, display screen, and microwave frequency counter is connected, it is micro- to carry out tested tachymeter
Wave tranmitting frequency, azimuth, pitch angle, the measurement of range data, reception and processing control the operation of each functional unit, coordinate
Detection device simultaneously in the operation of more than two positions, simulate multiple targets, and be automatically performed entire detection process.
Further, the point of automatic tracking system includes Monopulse estimation system and closed-loop control holder；The list
Pulse angle measuring system utilizes and difference beam detects the deviation angle between its antenna axial direction and tested tachymeter, and industrial personal computer passes through angle
Information controls cloud platform rotation, so that signal obtained by Monopulse estimation system is tended to 0, to make the antenna alignment quilt of analoging detecting device
Tachymeter (deviation angle between antenna axial direction and tested tachymeter is 0) is examined, the angle information that holder is read at this time is device
The angle of antenna axial direction and vehicle heading；The angle (azimuth and pitch angle) of holder feedback at this time gives industrial personal computer.
Preferably, the rangefinder uses laser range finder.
Further, the display screen be LED charactrons display screen, can under the conditions of high illumination taking the photograph to tested tachymeter
Camera provides clear data.Realistic simulation data that the video camera crawl display screen of tested tachymeter is shown (speed, angle, away from
From information), it is compared with the data progress of tested tachymeter selftest, to detect the measuring accuracy of tested tachymeter.
Further, the Monopulse estimation system includes combiner and 4 identical receiving antennas；The receiving antenna
Usually using array antenna, they are in identical phase center, but have Squint angle, to receive the micro- of tested tachymeter
Wave signal forms the antenna radiation pattern mutually overlapped mutually；The combiner by 4 array antenna receiveds and difference beam be converted into
Migration included angle angle voltage signal in a linear relationship；And the voltage signal is fed back into industrial personal computer, cloud is controlled by industrial personal computer
Platform rotation, makes the voltage signal tend to 0, so that Monopulse estimation system alignment is detected tachymeter.At this point, point of automatic tracking
The antenna of system, the antenna of Doppler's target simulator, rangefinder have all been directed at tested tachymeter.Poor wave in one plane
Beam directional diagram by taking the sum of adjacent two antenna, then from other two adjacent antenna and in subtract aforementioned and signal and obtain, such as
Shown in Fig. 1.Orientation difference signal is (A+B)-(C+D), and pitching difference signal is (B+D)-(A+C).Wherein A is the first receiving antenna
Received microwave signal, B are the received microwave signal of the second receiving antenna, and C is the received microwave signal of receiving antenna, D the
The received microwave signal of four receiving antennas.
Further, the combiner is put including four hybrid juctions, local oscillator, three frequency mixers, three intermediate frequencies
Big device, two phase detectors, amplitude detector, automatic growth controls；The hybrid juction is two-port input, two
Four port microwave devices of port output, are usually made of waveguide, when the signal from two bias beams enters hybrid juction
Two input terminals after, and difference signal generates in two output ends；The letter of first receiving antenna and the second receiving antenna
Number it is respectively connected to two input ports of the first hybrid juction, the signal difference of the third receiving antenna and the 4th receiving antenna
Access two input ports of the second hybrid juction；One output port of first hybrid juction and the second hybrid juction point
Not Jie Ru third hybrid juction two input ports, the another output mouth of two hybrid juctions be respectively connected to the 4th mixing
Two input ports of connector；The output port all the way of the third hybrid juction is as the first mixing of angle of cut channel access
Device, the first frequency mixer access the first intermediate frequency amplifier, and the first intermediate frequency amplifier accesses first phase wave detector；The third mixing
The another output mouth of connector is used as and the second frequency mixer is accessed in channel, and the second frequency mixer accesses the second intermediate frequency amplifier, the
Two intermediate frequency amplifiers access amplitude detector, and in addition two-way is respectively connected to first phase wave detector and second phase wave detector；Width
Spend wave detector access automatic gain controller, automatic gain controller respectively with three intermediate frequency amplifiers, two phase detectors
It is connected；One output port of the third hybrid juction connects as pitching angular difference channel access third frequency mixer, third frequency mixer
Enter third intermediate frequency amplifier, third intermediate frequency amplifier accesses second phase wave detector；The local oscillator is mixed with three respectively
Frequency device is connected；First phase wave detector and second detector export azimuth signal and pitching angle signal respectively, to control cloud
The rotation of platform.
The local oscillator, frequency mixer, by the output signal beat with poor port at intermediate-freuqncy signal, three lead to herein
A local oscillator is shared in road, to guarantee and poor channel amplitude having the same, phase characteristic；Intermediate frequency amplifier is to intermediate frequency
Signal amplifies；Phase detector is the nonlinear device for comparing homogenous frequency signal, and the output signal in poor channel is sent into
After the input terminal of phase detector, output end exports angular error signal, and the amplitude proportional of the signal is taken aim in target and receiving antenna
Angle between quasi- direction；Automatic gain controller controls the gain in three channels, to maintain the stabilization of closed-loop system.
As an implementation, 4 array antennas use in identical phase center but have Squint angle
Mode arrange, i.e., amplitude single pulse mode arrange.
For amplitude Monopulse estimation, the direction of array antenna main lobe has fixed angle inclined with antenna sighted direction respectively
Angle.As shown in Figure 1, by 4 antennas the first receiving antenna, for the second receiving antenna, two array antennas have identical
Phase center, the direction of two antenna main lobes respectively with antenna sighted direction θ0There is fixed angle drift angle, is denoted as Δ.Note two
The sum of target echo received by a antenna be and wave beam ζ, difference be difference beam δ.When tested tachymeter direction and antenna are taken aim at
When quasi- direction is consistent, the tested tachymeter echo that two antennas receive at this time is identical, i.e. the value of the difference beam δ value that is 0 and wave beam
ζ is maximum.If tested tachymeter and antenna sighted direction have a low-angle angle, remember that the angle is ε, the ratio between difference and wave beam are carried out
Taylor expansion can obtain
Wherein Δ be antenna main lobe direction respectively with antenna sighted direction θ0Drift angle, ζ be antenna received by mesh
The sum of mark echo is and wave beam, δ are difference beam；ε is tested tachymeter and antenna sighted direction angle.f(Δ-ε),f(Δ+ε)
The directivity function of respectively above-mentioned antenna, when ε is smaller, difference to the two and the ratio between carry out Taylor expansion, ignore high order
, it can obtainThe corresponding fixed angle drift angle Δ of fixed Monopulse estimation antenna, thenIt is one solid
Fixed value is determined by the structure of antenna.So being detected tachymeter and antenna sighted direction angle and difference and wave beam when ε is smaller
The ratio between it is in a linear relationship, therefore, pass through measurement difference and wave beam ratioIt can be obtained antenna sighted direction and tested tachymeter
Between a certain plane deviation situation.Due to having used the ratio operation of difference and wave beam, the amplitude for being detected tachymeter signal will not
Interference is generated to the accuracy of angle measurement result.
For 4 antenna systems arranged as shown in Figure 1, there are four partly overlapping bias beams for system tool.Wherein one
Difference beam directional diagram in a plane by take adjacent two antenna and signal, then from other two adjacent antenna and in subtracting
Aforementioned and signal obtains.Poor directional diagram on orthogonal plane similar can obtain.Orientation difference signal is (A+B)-(C+D), trim
Signal is (B+D)-(A+C).
Using and difference beam measure between antenna sighted direction and tested tachymeter between deviation situation after, point of automatic tracking
The closed-loop control holder of system will drive the rotation of the functional units such as Doppler's target simulator, and the offset signal is made to tend to 0, from
And it is directed at tested tachymeter.
Further, it after the industrial personal computer obtains the surveyed radar microwave frequency of microwave frequency counter, is obtained in conjunction with angle information
Doppler's target simulator of different location Doppler frequency corresponding under different analog rates, is sent to Doppler's mesh
Mark simulator.The industrial personal computer calculates Doppler's target simulator of different location corresponding to the different analog rate v
Doppler frequency fd, process is as follows:
Wherein, fd--- Doppler frequency, Hz；
C --- electromagnetic wave propagation speed 0.299792458 (Gm/s)；
K --- the unit conversion factor, K=10-3/3.6；
--- tested azimuth of the tachymeter relative to detection device；
θ --- tested pitch angle of the tachymeter relative to detection device；
f0--- the tested tachymeter Microwave emission frequency that microwave frequency counter measures, MHz；
V --- speed setting value, km/h.
Further, the Doppler signal target simulator includes microstrip antenna, gating modulator and message-source adapted
Device, microstrip antenna connection gating modulator, to receive tested tachymeter microwave signal to gating modulator, message-source adapted
Device connection gating modulator emits through microstrip antenna and adjusts after message-source adapted device is superimposed Doppler signal to gating modulators modulate
Microwave signal processed is to tested tachymeter.Doppler frequency completes f after the modulation of Doppler's target simulator0±fdIt is modulated
Journey, and load on TCH test channel.Modulated microwave modulated signal is transmitted back to tested vehicle radar meter by microstrip antenna,
Tested radar meter receives modulated microwave modulated signal, by work such as down coversions, detects Doppler frequency fd,
And it is shown as corresponding velocity amplitude.The collaborative work of multiple functional units can carry out the simulation of multiple moving targets simultaneously, complete
It works at the analog detection of multiple target radar meter.
A kind of multiple target radar meter in-site modeling detection method of the invention will cover simulation detection unit more and put respectively
Be placed in tested lane, and can by closed-loop control cloud platform rotation, point of automatic tracking systematic survey its with tested tachymeter
Angle adjusts angle by holder and tends to 0.Industrial personal computer controls the Microwave emission frequency that microwave frequency counter measures tested radar meter
Rate f0, azimuth of each analog detection unit relative to detected tachymeter, pitch angle are obtained, and pass through stadia surveying and simulate
Detection unit is at a distance from tested radar meter；The analog detection unit for calculating different location is right in different analog rate v institutes
The Doppler frequency f answeredd；Doppler frequency completes f after the modulation of Doppler's target simulator0±fdModulated process, and add
It is loaded on TCH test channel, modulated microwave modulated signal is transmitted back to tested vehicle radar meter by microstrip antenna, be detected thunder
Modulated microwave modulated signal is received up to tachymeter, detects Doppler frequency fd, and it is shown as corresponding velocity amplitude.Tool
Body the following steps are included:
Step 1, the azimuth for determining tested tachymeter, pitch angle:
Azimuth, the pitch angle of tested tachymeter are determined using Monopulse estimation system.
The Monopulse estimation system includes combiner and 4 array antennas；The array antenna is detected to receive
The echo of fast instrument；The combiner by multiple array antenna receiveds and difference beam be converted into the voltage directly proportional to angle of eccentricity
Signal；
As an implementation, 4 array antennas use in identical phase center but have Squint angle
Mode arrange, i.e., amplitude single pulse mode arrange.
For amplitude Monopulse estimation, the direction of array antenna main lobe has fixed angle inclined with antenna sighted direction respectively
Angle.As shown in Figure 1, by 4 antennas the first receiving antenna, for the second receiving antenna, two array antennas have identical
Phase center, the direction of two antenna main lobes respectively with antenna sighted direction θ0There is fixed angle drift angle, is denoted as Δ.Note two
The sum of target echo received by a antenna be ζ, difference be difference beam δ.When tested tachymeter direction and antenna sighted direction
When consistent, the tested tachymeter echo that two receiving antennas receive at this time is identical, i.e., the value of difference beam δ is 0 and the value ζ of wave beam
It is maximum.If tested tachymeter and antenna sighted direction have a low-angle angle, remember that the angle is ε, the ratio between difference and wave beam are carried out
Taylor expansion can obtain
The corresponding fixed angle drift angle Δ of fixed Monopulse estimation antenna, thenIt is a fixed value.I.e.
Tested tachymeter and the ratio between antenna sighted direction angle and difference and wave beam are in a linear relationship.Therefore, pass through measurement difference and wave beam
RatioIt can be obtained the deviation situation between antenna sighted direction and tested tachymeter in a certain plane.Due to having used difference and wave
The ratio operation of beam, the amplitude for being detected tachymeter signal will not generate interference to the accuracy of angle measurement result.
For 4 antenna systems arranged as shown in Figure 1, there are four partly overlapping bias beams for system tool.Wherein
Difference beam directional diagram in one plane by taking the sum of adjacent two antenna, then from other two adjacent antenna and in subtract before
It states and is obtained with signal.Poor directional diagram on orthogonal plane similar can obtain.Orientation difference signal is (A+B)-(C+D), trim letter
Number be (B+D)-(A+C).Wherein A is the received microwave signal of the first receiving antenna, and B is the received microwave of the second receiving antenna
Signal, C are the received microwave signal of receiving antenna, and D is the 4th received microwave signal of receiving antenna.
Using and after difference beam measures the deviation situation between antenna sighted direction and tested tachymeter, point of automatic tracking system
The closed-loop control holder of system will drive the rotation of the functional units such as Doppler's target simulator, and the offset signal is made to tend to 0, thus
It is directed at tested tachymeter.Feedback cloud stand rotational angle simultaneously, thus obtain tested tachymeter relative to detection device azimuth,
Pitch angle.
Step 2, the corresponding position for determining the tested relatively each Doppler's target simulator of tachymeter:
Using rangefinder measure inspection tachymeter at a distance from each Doppler signal target simulator, it is tested to determine
The position of the relatively each Doppler's target simulator of tachymeter.
Step 3, the Microwave emission frequency for obtaining tested radar meter:
The Microwave emission frequency of tested radar meter is measured using microwave frequency counter.
Step 4, the corresponding Doppler frequency f of different analog rates for calculating different locationd:
Wherein, fd--- Doppler frequency, Hz；
C --- electromagnetic wave propagation speed 0.299792458 (Gm/s)；
K --- the unit conversion factor, K=10-3/3.6；
--- tested azimuth of the tachymeter relative to detection device；
θ --- tested pitch angle of the tachymeter relative to detection device；
f0--- the tested tachymeter Microwave emission frequency that microwave frequency counter measures, MHz；
V --- speed setting value, km/h.
Signal is fed back to after step 5, the tested tachymeter microwave signal of modulation and corresponding speed Doppler signal detected
Fast instrument.
Modulated general Le signal frequency is f0±fd；Wherein f0To be detected tachymeter radar microwave tranmitting frequency.
As an implementation, tested tachymeter microwave signal and phase are modulated using Doppler signal target simulator
It answers and signal is fed back into tested tachymeter after acceleration Doppler signal.
Further, the Doppler signal target simulator includes microstrip antenna, gating modulator and message-source adapted
Device, the microstrip antenna connection gating modulator connect, and to receive tested tachymeter microwave signal to modulator is gated, information source is suitable
Orchestration connection gating modulator emits after message-source adapted device is superimposed Doppler signal to gating modulators modulate through microstrip antenna
Modulated microwave signal is to tested tachymeter.
Step 6, tested radar meter receive modulated microwave modulated signal, detect Doppler frequency fd, and
It is shown as corresponding velocity amplitude.
The actual speed of speed, azimuth, pitch angle, range information and simulation that tested radar meter is measured, cloud
The distance that angle that platform measures, rangefinder measure compares, and can be obtained the measuring accuracy of tested radar meter.With subscript
Calibration information can be obtained by the matched video camera of radar meter from the display screen of calibrating installation.
Claims (10)
1. a kind of multiple target radar meter in-site modeling detection device, which is characterized in that including covering simulation detection unit more, with
Industrial personal computer, microwave frequency counter constitute analog detection array together；The analog detection unit includes the angle being arranged on holder
Automatic tracking system, rangefinder, Doppler signal target simulator and display screen；The point of automatic tracking system is to true
Surely the azimuth of tested tachymeter and pitch angle；The rangefinder is to determine tested tachymeter and Doppler signal target simulation
Distance between device；The microwave frequency counter measures the Microwave emission frequency of tested radar meter；Doppler's target mould
Quasi- device receives the microwave signal of tested tachymeter, and modulating will after being detected tachymeter microwave signal and corresponding speed Doppler signal
Signal feeds back to tested tachymeter；Tested tachymeter detects Doppler frequency, is shown as corresponding velocity amplitude；Display screen is shown
Velocity amplitude that Doppler's target simulator is simulated, the azimuth of holder feedback and pitch angle and rangefinder measure away from
From；The industrial personal computer connects more set point of automatic tracking systems, rangefinder, Doppler's target simulator, display screen simultaneously, and
Connect microwave frequency counter, carry out tested tachymeter Microwave emission frequency, azimuth, pitch angle, range data measurement, receive and
Processing, controls the operation of each functional unit, coordinate detection device simultaneously in the operation of more than two positions, simulate multiple targets, and
It is automatically performed entire detection process.
2. multiple target radar meter in-site modeling detection device according to claim 1, which is characterized in that the angle
Automatic tracking system includes Monopulse estimation system and closed-loop control holder；The Monopulse estimation system utilizes and difference beam is examined
The deviation angle between its antenna axial direction and tested tachymeter is surveyed, industrial personal computer controls cloud platform rotation by angle information, makes pulse
Signal obtained by angle measuring system tends to 0, so that the antenna alignment of analoging detecting device is made to be detected tachymeter, the angle that holder is read at this time
Degree information is the angle of device antenna axial direction and vehicle heading；The angle of holder feedback at this time is to industrial personal computer.
3. multiple target radar meter in-site modeling detection device according to claim 1, which is characterized in that the simple venation
Rushing angle measuring system includes combiner and 4 identical receiving antennas；Microwave of the receiving antenna to receive tested tachymeter
Signal；The combiner by 4 array antenna receiveds and difference beam be converted into the electricity in a linear relationship with migration included angle angle
Press signal；And the voltage signal is fed back into industrial personal computer, cloud platform rotation is controlled by industrial personal computer, the voltage signal is made to tend to 0, from
And Monopulse estimation system alignment is detected tachymeter.
4. multiple target radar meter in-site modeling detection device according to claim 1, which is characterized in that described and poor
Device includes four hybrid juctions, local oscillator, three frequency mixers, three intermediate frequency amplifiers, two phase detectors, amplitudes
Wave detector, automatic growth control；The signal of first receiving antenna and the second receiving antenna is respectively connected to the first hybrid juction
Two input ports, the signal of the third receiving antenna and the 4th receiving antenna is respectively connected to two of the second hybrid juction
Input port；One output port of first hybrid juction and the second hybrid juction is respectively connected to the two of third hybrid juction
The another output mouth of a input port, two hybrid juctions is respectively connected to two input ports of the 4th hybrid juction；Institute
The output port all the way for stating third hybrid juction accesses the first frequency mixer, the first frequency mixer access first as angle of cut channel
Intermediate frequency amplifier, the first intermediate frequency amplifier access first phase wave detector；The another output mouth of the third hybrid juction
The second frequency mixer is accessed as with channel, the second frequency mixer accesses the second intermediate frequency amplifier, and the second intermediate frequency amplifier accesses amplitude
Wave detector, in addition two-way is respectively connected to first phase wave detector and second phase wave detector；Amplitude detector accesses automatic gain
Controller, automatic gain controller are connected with three intermediate frequency amplifiers, two phase detectors respectively；The third hybrid juction
One output port accesses third intermediate frequency amplifier, third as pitching angular difference channel access third frequency mixer, third frequency mixer
Intermediate frequency amplifier accesses second phase wave detector；The local oscillator is connected with three frequency mixers respectively；First phase detection
Device and second detector export azimuth signal and pitching angle signal respectively, to control the rotation of holder.
5. multiple target radar meter in-site modeling detection device according to claim 1, which is characterized in that the display
Screen is LED charactrons display screen, and the realistic simulation data that the video camera crawl display screen of tested tachymeter is shown test the speed with tested
The data of instrument selftest compare.
6. the analog detecting method of -5 any analoging detecting devices according to claim 1, which is characterized in that simulation inspection will be covered more
Unit is surveyed to be placed in respectively in tested lane, and can by closed-loop control cloud platform rotation, point of automatic tracking systematic survey its with
The angle of tested tachymeter adjusts angle by holder and tends to 0；Microwave frequency counter measures the Microwave emission of tested radar meter
Frequency f0, azimuth of each analog detection unit relative to detected tachymeter, pitch angle are obtained, and pass through stadia surveying mould
Quasi- detection unit is at a distance from tested radar meter；The analog detection unit of different location is calculated in different analog rate v institutes
Corresponding Doppler frequency fd；Doppler frequency completes f after the modulation of Doppler's target simulator0±fdModulated process, and
Modulated microwave modulated signal is transmitted back to tested radar meter by microstrip antenna on TCH test channel by load, is detected thunder
Modulated microwave modulated signal is received up to tachymeter, detects Doppler frequency fd, and it is shown as corresponding velocity amplitude.
7. multiple target radar meter in-site modeling detection method according to claim 6, which is characterized in that the simple venation
Rushing angle measuring system includes combiner and 4 identical receiving antennas；Microwave of the receiving antenna to receive tested tachymeter
Signal；The combiner by 4 array antenna receiveds and difference beam be converted into the electricity in a linear relationship with migration included angle angle
Press signal；And the voltage signal is fed back into industrial personal computer, cloud platform rotation is controlled by industrial personal computer, the voltage signal is made to tend to 0, from
And Monopulse estimation system alignment is detected tachymeter.
8. multiple target radar meter in-site modeling detection method according to claim 7, which is characterized in that described 4
Array antenna is arranged using in such a way that identical phase center still has Squint angle, is taken aim at by tested tachymeter with antenna
The ratio between quasi- angular separation and difference and wave beam are in a linear relationship, detect to obtain between antenna sighted direction and tested tachymeter a certain
The deviation situation of plane:
Wherein Δ be antenna main lobe direction respectively with antenna sighted direction θ0Drift angle, ζ be antenna received by target echo
The sum of be and wave beam, δ are difference beam；ε is tested tachymeter and antenna sighted direction angle；F (Δ-ε), f (Δ+ε) are respectively
The directivity function of above-mentioned antenna, when ε is smaller, difference to the two and the ratio between carry out Taylor expansion, ignore high-order term, can obtain
9. multiple target radar meter in-site modeling detection method according to claim 6, which is characterized in that the industry control
Doppler's target simulator Doppler frequency f corresponding to different analog rate v of machine calculating different locationd:
Wherein, fd--- Doppler frequency, Hz；
C --- electromagnetic wave propagation speed 0.299792458 (Gm/s)；
K --- the unit conversion factor, K=10-3/3.6；
--- tested azimuth of the tachymeter relative to detection device；
θ --- tested pitch angle of the tachymeter relative to detection device；
f0--- the tested tachymeter Microwave emission frequency that microwave frequency counter measures, MHz；
V --- speed setting value, km/h；
Doppler frequency completes f after the modulation of Doppler's target simulator0±fdModulated process, and load in TCH test channel
On.
10. multiple target radar meter in-site modeling detection method according to claim 6, which is characterized in that described more
General Le signal target simulator includes microstrip antenna, gating modulator and message-source adapted device, the microstrip antenna connection gating
Modulator connects, and gates modulator, information source to modulator, the connection of message-source adapted device is gated to receive tested tachymeter microwave signal
After adapter is superimposed Doppler signal to gating modulators modulate, emits modulated microwave signal through microstrip antenna and test the speed to tested
Instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811256332.0A CN109254173A (en) | 2018-10-26 | 2018-10-26 | Multiple target radar meter in-site modeling detection method and detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811256332.0A CN109254173A (en) | 2018-10-26 | 2018-10-26 | Multiple target radar meter in-site modeling detection method and detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109254173A true CN109254173A (en) | 2019-01-22 |
Family
ID=65046638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811256332.0A Pending CN109254173A (en) | 2018-10-26 | 2018-10-26 | Multiple target radar meter in-site modeling detection method and detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109254173A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946483A (en) * | 2019-04-15 | 2019-06-28 | 北京市计量检测科学研究院 | Test the speed standard set-up for a kind of scene |
| CN110554365A (en) * | 2019-09-02 | 2019-12-10 | 北京电子工程总体研究所 | Seeker multi-frequency point difference directional diagram automatic calibration method and device |
| CN110596672A (en) * | 2019-10-21 | 2019-12-20 | 西安电子工程研究所 | Angle measuring method for narrow beam broadening of guided radar |
| CN111239720A (en) * | 2020-01-17 | 2020-06-05 | 深圳市戴升智能科技有限公司 | Vehicle speed measuring method and device, computer equipment and storage medium |
| CN111273278A (en) * | 2020-02-06 | 2020-06-12 | 零八一电子集团有限公司 | Four-channel millimeter wave digital sum-difference monopulse precision tracking system |
| CN112731319A (en) * | 2020-12-29 | 2021-04-30 | 广州地铁集团有限公司 | Radar test method, electronic device and medium |
| CN112882024A (en) * | 2021-03-25 | 2021-06-01 | 浙江大华技术股份有限公司 | Radar detection method and apparatus, storage medium, and electronic apparatus |
| CN113993066A (en) * | 2021-09-15 | 2022-01-28 | 北京电子工程总体研究所 | Multidirectional directional microwave antenna alignment method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120007769A1 (en) * | 2010-07-09 | 2012-01-12 | Evgeny Markin | Method of automatic target angle tracking by sum-and-difference monopulse radar and device therefore |
| CN104730501A (en) * | 2015-02-04 | 2015-06-24 | 江苏省计量科学研究院 | Motor vehicle radar speed measurement meter field simulation method and detection device |
| CN105319546A (en) * | 2015-04-02 | 2016-02-10 | 沈阳天择智能交通工程有限公司 | Multi-target radar and adopted digital signal processing method thereof |
| CN207502713U (en) * | 2017-11-17 | 2018-06-15 | 中汽研（天津）汽车工程研究院有限公司 | A kind of car radar target simulation system |
| CN108627810A (en) * | 2018-05-04 | 2018-10-09 | 吉林大学 | Intelligent automobile millimetre-wave radar hardware-in―the-loop test rack |
-
2018
- 2018-10-26 CN CN201811256332.0A patent/CN109254173A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120007769A1 (en) * | 2010-07-09 | 2012-01-12 | Evgeny Markin | Method of automatic target angle tracking by sum-and-difference monopulse radar and device therefore |
| CN104730501A (en) * | 2015-02-04 | 2015-06-24 | 江苏省计量科学研究院 | Motor vehicle radar speed measurement meter field simulation method and detection device |
| CN105319546A (en) * | 2015-04-02 | 2016-02-10 | 沈阳天择智能交通工程有限公司 | Multi-target radar and adopted digital signal processing method thereof |
| CN207502713U (en) * | 2017-11-17 | 2018-06-15 | 中汽研（天津）汽车工程研究院有限公司 | A kind of car radar target simulation system |
| CN108627810A (en) * | 2018-05-04 | 2018-10-09 | 吉林大学 | Intelligent automobile millimetre-wave radar hardware-in―the-loop test rack |
Non-Patent Citations (2)
| Title |
|---|
| 杜小平等: "《空间态势感知基础》", 30 September 2017, 《国防工业出版社》 * |
| 陈运涛等: "《雷达技术基础》", 31 July 2014, 《国防工业出版社》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109946483A (en) * | 2019-04-15 | 2019-06-28 | 北京市计量检测科学研究院 | Test the speed standard set-up for a kind of scene |
| CN110554365A (en) * | 2019-09-02 | 2019-12-10 | 北京电子工程总体研究所 | Seeker multi-frequency point difference directional diagram automatic calibration method and device |
| CN110596672A (en) * | 2019-10-21 | 2019-12-20 | 西安电子工程研究所 | Angle measuring method for narrow beam broadening of guided radar |
| CN111239720A (en) * | 2020-01-17 | 2020-06-05 | 深圳市戴升智能科技有限公司 | Vehicle speed measuring method and device, computer equipment and storage medium |
| CN111273278A (en) * | 2020-02-06 | 2020-06-12 | 零八一电子集团有限公司 | Four-channel millimeter wave digital sum-difference monopulse precision tracking system |
| CN112731319A (en) * | 2020-12-29 | 2021-04-30 | 广州地铁集团有限公司 | Radar test method, electronic device and medium |
| CN112882024A (en) * | 2021-03-25 | 2021-06-01 | 浙江大华技术股份有限公司 | Radar detection method and apparatus, storage medium, and electronic apparatus |
| CN113993066A (en) * | 2021-09-15 | 2022-01-28 | 北京电子工程总体研究所 | Multidirectional directional microwave antenna alignment method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109254173A (en) | Multiple target radar meter in-site modeling detection method and detection device | |
| CN208872774U (en) | Multiple target radar meter on-site detecting device | |
| US4996533A (en) | Single station radar ocean surface current mapper | |
| CN103823221A (en) | Pulse laser coherent wind measuring radar | |
| CN110146864A (en) | A kind of weather radar composite calibration method and system | |
| RU74217U1 (en) | COMPLEX FOR VERIFICATION OF A SHIP RADAR SYSTEM | |
| JPH044557B2 (en) | ||
| US7167126B2 (en) | Radar system and method for determining the height of an object | |
| JPH045155B2 (en) | ||
| JPH0420861A (en) | Tilt space antenna method and system for measuring atmospheric-air wind field | |
| JPS61108984A (en) | Radar equipment for measuring mono-pulse angle | |
| US5047781A (en) | Radar sensing generator in a monopulse radar system | |
| CN109031338A (en) | Laser radar and its distance measuring method | |
| CN111090094B (en) | Method and system for measuring dual-beam angle of pulse Doppler radar and storage medium | |
| US3852749A (en) | Radiolocation system | |
| CN112558495A (en) | Anti-interference semi-physical simulation system and method for radar altimeter | |
| RU2703996C2 (en) | Method of target location in front viewing areas of on-board radar stations of two-position radar system | |
| US3378843A (en) | Monopulse tracking radar system capable of locating a plurality of unresolved targets | |
| US4101893A (en) | Aircraft landing aid for zero-zero visibility landings | |
| RU2317563C1 (en) | Radar target simulator | |
| RU2459219C1 (en) | System for built-in control and calibration of monopulse radar station | |
| RU82345U1 (en) | RADAR GOAL SIMULATOR | |
| CN116680860A (en) | Scene-driving-based radar track simulation method | |
| US3438030A (en) | Object detection system | |
| US4584584A (en) | Method of measuring range and altitude |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190122 |
|
| RJ01 | Rejection of invention patent application after publication |