CN106353740A - Radio responding calibration equipment based on time sequence pulse encoding - Google Patents
Radio responding calibration equipment based on time sequence pulse encoding Download PDFInfo
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- CN106353740A CN106353740A CN201610896506.4A CN201610896506A CN106353740A CN 106353740 A CN106353740 A CN 106353740A CN 201610896506 A CN201610896506 A CN 201610896506A CN 106353740 A CN106353740 A CN 106353740A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention discloses radio responding calibration equipment based on time sequence pulse encoding. The radio responding calibration equipment comprises a radio responding calibration equipment main body, wherein the radio responding calibration equipment main body is composed of a transmitting antenna, a receiving antenna, an address decoding control start-up circuit and a calibration mounting bracket. According to the radio responding calibration equipment, an aerial responding signal encoding format is unique and is not easy to crack and an anti-interference capability is great; a confidential safety problem, which is possibly caused by leakage of a radio signal, in a daily calibration testing process is effectively avoided; the radio responding calibration equipment has high sensitivity, a long acting distance and a low responding error rate and the calibration precision is ensured; meanwhile, an inquiry instruction of radar radiation is received and then is subjected to recognition processing, and responding pulses consistent to a responding device are radiated; and the radio responding calibration equipment also has a self-inspection function, so as to ensure the inspection of working capabilities of main functional parts and simulate a radio responding device function for calibrating a radar system.
Description
Technical field
The present invention relates to a kind of radio response calibration equipment technical field based on time sequential pulse coding, more particularly to
One kind is applied to above water craft radar system detection calibration equipment.
Background technology
Radar accuracy be the target component estimated value of radar surveying with respect to the levels of precision between target actual parameter value,
Generally, the quality of radar measurement accuracy is characterized with the size of its measurement error and weighs, the source being produced according to error and property,
Random error, systematic error and human error can be divided into, random error is also referred to as incidental error, be random quantity purely, be
System error is the error component that retest changes according to certain rules, and the systematic error of radar has certain rule, for improving
The accuracy of measurement data, to suppress random noise by data smoothing, filtering in data handling, and systematic error then passes through
Calibration is revising.
Radar system is a kind of ground installation by integration of equipments such as all kinds of detections, control, data transfer, communications, it
Main task is to complete to detect, follow the tracks of and identify, the precision of radar is effective important technology index detecting, and directly affects radar
The performance of system, elapses over time, and the performance of radar system and technical parameter can drift about, and system accuracy can change
Become, the navigation safety of ship will be directly affected, therefore, radar system is carried out with regular accuracy checking and calibration becomes very urgent
Cut, it is necessary to system is carried out with performance checking and precision calibration especially before ship execution significant task, after grade repairing, wirelessly
Electric response calibration equipment is that one kind is applied to above water craft detections of radar calibration equipment, plays in radar system technical guarantee
Important function.
Content of the invention
The technical problem being existed based on background technology, the purpose of the present invention is to propose to a kind of orientation curve test of radar,
The technological means of antenna system calibration.
The present invention following technical scheme of offer:
A kind of radio response calibration equipment based on time sequential pulse coding, including radio response calibration equipment body, described
Radio response calibration equipment body controls start-up circuit and calibration mounting bracket by transmitting antenna, reception antenna, address decoding
Composition, described transmitting antenna includes response transmitting antenna and response transmitting branch, and the beam angle of transmitting antenna is 6 ° ± 25 ',
Frequency range is millimeter wave, and transmitting antenna launches surface antenna for offset-fed, and described reception antenna includes inquiring that reception antenna and inquiry receive
Branch road, the frequency of reception antenna is ku wave band, and beam angle is 45～75 °, and reception antenna is flat helical antenna, described wireless
The high-frequency energy that the reception antenna of electric response calibration equipment body receives radar emission converts thereof into control signal, by wireless
Electricity orientation response antenna produces transponder pulse signal.
Described radio response calibration equipment body adopts time sequential pulse coding techniques, bistatic mode work and parameter
It is independently arranged, control triggering to form synchronized relation by radio response starting impulse, the connecing of radio response calibration equipment body
Receive antenna receive radar emission signal, pass sequentially through video amplifier, shaping enter address decoder, and with radio response calibration
The address code setting in equipment body is compared, and when comparing successfully, controls pulse shaper to form radio answering machine and swash
Light response irradiator enabling signal.
Preferably, the circuit of described response transmitting branch is made up of dds, doubler, pdro, 100mhz crystal oscillator, described dds
Outfan be electrically connected with wave filter, the outfan of described wave filter is electrically connected with amplifier, the output of described amplifier
End be electrically connected with manipulator, the input of described dds is electrically connected with the outfan of doubler, described 100mhz crystal oscillator defeated
The input going out end with doubler is electrically connected, and the outfan of 100mhz crystal oscillator is electrically connected with the input of pdro.
Preferably, the polarization mode of described transmitting antenna is circular polarisation or verticalization.
Preferably, the circuit of described inquiry receiving branch is by low-noise amplifier, wave filter, amplifier and power splitter group
Become, the outfan of described low-noise amplifier is electrically connected with wave filter, and the outfan of described wave filter is electrically connected with amplification
Device, the outfan of described amplifier is electrically connected with the input of power splitter, and the outfan of described power splitter is electrically connected with
There is filter cell, the outfan of filter cell is electrically connected with comparator by the logarithmic detector of electrical connection respectively, described
The outfan of logarithmic detector is electrically connected with analog switch, and the outfan of described analog switch is connected with time parameter measurement.
Preferably, described radio response calibration equipment body is that 27v ± 2.7v runs in AC or DC voltage, consumes
Electric current is not more than 1.5a.
The invention provides a kind of radio response calibration equipment based on time sequential pulse coding, aerial answer signal coding
Form is unique, is difficult to crack, strong antijamming capability, effectively prevent in daily calibration test process because radio signal leaks
The secret and safe problem being likely to result in, and sensitivity is high, operating distance is big, the response bit error rate low it is ensured that calibration precision, lead to simultaneously
Cross the inquiry instruction receiving radar emission, and after it being identified process, radiate the transponder pulse consistent with transponder, and have
There is self-checking function it is ensured that checking the ability to work of its main function components, simulation radio transponder function is used for radar system
The calibration of system.
Brief description
Fig. 1 is a kind of radio response calibration equipment pictorial diagram based on time sequential pulse coding of the present invention；
Fig. 2 is offset-fed parabolic antenna figure；
Fig. 3 is flat helical antenna measurement direction figure；
Fig. 4 is transmitting branch circuit composition frame chart；
Fig. 5 is receiving branch circuit composition frame chart；
Fig. 6 is the changed power relation schematic diagram with input signal for the ad8313 output voltage；
Fig. 7 is pulse code time diagram；
Fig. 8 is command pulse sequence diagram；
Fig. 9 is pulse analysiss circuit theory diagrams.
In figure: 1 radio response calibration equipment body, 2 reception antennas, 3 transmitting antennas, 4 calibration mounting brackets.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
As shown in figs 1-9, Fig. 1 is that a kind of radio response calibration equipment based on time sequential pulse coding of the present invention is in kind
Figure；Fig. 2 is offset-fed parabolic antenna figure；Fig. 3 is flat helical antenna measurement direction figure；Fig. 4 forms frame for transmitting branch circuit
Figure；Fig. 5 is receiving branch circuit composition frame chart；Fig. 6 is that ad8313 output voltage is illustrated with the changed power relation of input signal
Figure；Fig. 7 is pulse code time diagram；Fig. 8 is command pulse sequence diagram；Fig. 9 is pulse analysiss circuit theory diagrams.
Refer to Fig. 1-9, a kind of present invention technical scheme of offer:
A kind of radio response calibration equipment based on time sequential pulse coding, including radio response calibration equipment body 1, wirelessly
Electric response calibration equipment body 1 controls start-up circuit and calibration mounting bracket 4 by transmitting antenna 3, reception antenna 2, address decoding
Composition, transmitting antenna 3 includes response transmitting antenna and response transmitting branch, and the beam angle of transmitting antenna 3 is 6 ° ± 25 ', frequently
Section is millimeter wave, and transmitting antenna 3 launches surface antenna for offset-fed, and reception antenna 2 includes inquiring reception antenna and inquiry receiving branch,
The frequency of reception antenna 2 is ku wave band, and beam angle is 45～75 °, and reception antenna 2 is flat helical antenna, radio response
The high-frequency energy that the reception antenna 2 of calibration equipment body 1 receives radar emission converts thereof into control signal, fixed by radio
Produce transponder pulse signal to response antenna.
Radio response calibration equipment body 1 adopts time sequential pulse coding techniques, bistatic mode work and parameter only
Erect and put, control triggering to form synchronized relation, the reception of radio response calibration equipment body 1 by radio response starting impulse
Antenna 2 receive radar emission signal, pass sequentially through video amplifier, shaping enter address decoder, and with radio response calibration
The address code setting in equipment body 1 is compared, and when comparing successfully, controls pulse shaper to form radio answering machine and swash
Light response irradiator enabling signal.
The circuit of response transmitting branch is made up of dds, doubler, pdro, 100mhz crystal oscillator, and the outfan of dds electrically connects
It is connected to wave filter, the outfan of wave filter is electrically connected with amplifier, and the outfan of amplifier is electrically connected with manipulator, dds
Input be electrically connected with the outfan of doubler, the outfan of 100mhz crystal oscillator is electrically connected with the input of doubler,
The outfan of 100mhz crystal oscillator is electrically connected with the input of pdro.
The polarization mode of transmitting antenna 3 is circular polarisation or verticalization.
The circuit of inquiry receiving branch is made up of low-noise amplifier, wave filter, amplifier and power splitter, low noise amplification
The outfan of device is electrically connected with wave filter, and the outfan of wave filter is electrically connected with amplifier, the outfan of amplifier and work(
The input dividing device is electrically connected, and the outfan of power splitter has been electrically connected with filter cell, the output of filter cell
End is electrically connected with comparator by the logarithmic detector of electrical connection respectively, and the outfan of logarithmic detector is electrically connected with simulation and opens
Close, the outfan of analog switch is connected with time parameter measurement.
Radio response calibration equipment body 1 is that 27v ± 2.7v runs in AC or DC voltage, consumes electric current and is not more than
1.5a.
The invention provides a kind of radio response calibration equipment based on time sequential pulse coding, aerial answer signal coding
Form is unique, is difficult to crack, strong antijamming capability, effectively prevent in daily calibration test process because radio signal leaks
The secret and safe problem being likely to result in, and sensitivity is high, operating distance is big, the response bit error rate low it is ensured that calibration precision, lead to simultaneously
Cross the inquiry instruction receiving radar emission, and after it being identified process, radiate the transponder pulse consistent with transponder, and have
There is self-checking function it is ensured that checking the ability to work of its main function components, simulation radio transponder function is used for radar system
The calibration of system.
Radio response calibration equipment pass through receive radar emission inquiry instruction, and it is identified process after, spoke
Penetrating the transponder pulse consistent with transponder, there is self-checking function it is ensured that checking the ability to work of its main function components, work(simultaneously
Can go up and exactly simulate radio transponder function for the calibration to radar system.
As shown in figure 1, radio response calibration equipment receives the signal of radar emission, through video amplifier, shaping and enter
To in 1000022015.92 address decoders, and it is compared with the address code in equipment, when they are consistent, control arteries and veins
Rush shaper and form radio answering machine and laser response irradiator enabling signal, radio response calibration equipment is using transmitting-receiving point
The mode of putting works, and parameter is independently arranged, and controls triggering to form synchronized relation by radio response starting impulse, by selecting and setting
Count rational reception antenna 2 and transmitting antenna 3 ensures there is larger reception beam angle and launching beam width, and pulse
Parameter, radiation sequential etc..
As shown in Fig. 2 transmitting antenna 3 is offset-fed reflector antenna, beam angle is 6 ° ± 25 ', and frequency range is millimeter wave, pole
Change mode is circular polarisation or vertical polarization, uses light waveguide feed if using vertical polarization, if necessary to circular polarisation, just in feedback
One section of circular polarisation changeover portion is added between electric section and loudspeaker.
As shown in figure 3, the frequency of reception antenna 2 is ku wave band, beam angle is 45～75 °, and reception antenna 2 is plane spiral shell
Rotation antenna, antenna measurement direction is as shown in Figure 3.
As shown in figure 4, being transmitting branch circuit composition frame chart, the circuit of response transmitting branch by dds, doubler, pdro,
100mhz crystal oscillator forms, and the outfan of dds is electrically connected with wave filter, and the outfan of wave filter is electrically connected with amplifier, puts
The outfan of big device is electrically connected with manipulator, and the input of dds is electrically connected with the outfan of doubler, 100mhz crystal oscillator
Outfan is electrically connected with the input of doubler, and the outfan of 100mhz crystal oscillator is electrically connected with the input of pdro.
Export 100mhz signal using crystal oscillator, crystal oscillator output signal is divided into two-way, a road provides input for 1ghz doubler
Signal, another road passes through frequency as the reference signal of pdro, 1ghz doubler output signal as the reference clock of dds, dds
Control one of four frequencies of output frequency, and after the mixing of pdro output signal, device and amplifier obtain accordingly after filtering
Frequency, the 1/4 of the identification frequency of corresponding four fixations of radar of frequency of wave filter output, mixer output signal enters to be modulated
Device, is modulated according to certain rule, output pulse signal, after output of pulse signal to doubler, exports corresponding thunder
Reach tranmitting frequency, after amplifier may amplify the signal to the signal of system needs, by transmitting antenna 3 to radar emission, in calibration
Car to selecting one of frequency to carry out calibration during radar calibration, modulation pulse according to radar emission signal pulse require into
Row modulation, crystal oscillator adopts the constant-temperature crystal oscillator of high stable, and phase noise is better than -150dbc/hz@1khz, frequency
Degree of stability is better than 1 × 10-7, and frequency accuracy is better than 100khz.
1ghz doubler to be realized by the way of harmonic oscillator+wave filter+amplifier, harmonic oscillator input signal
It is that 100mhz comes from crystal oscillator, the harmonic component of output 100mhz, by the wave filter of 1ghz, filter harmonic oscillator output no
With frequency component, finally by amplifier, the signal of 1ghz is amplified to the power 0dbm of dds needs.
Dds adopts the high performance ad9858 chip of ad company, and the frequency all the time of ad9858 can reach 1ghz, and output is miscellaneous
Dissipate and be better than -55dbc, disclosure satisfy that the requirement of radio response calibration equipment discharger, the phase of 1000022015.94ad9858
Bit accumulator digit is 32, and the theory according to dds can derive that the frequency resolution of the signal of dds output is 0.23hz,
Four suitable frequencies are selected to select one of four suitable frequencies by frequency control word in dds reference frequency output
Output.
Pdro is signal and the reference signal locking realizing by sampled phase-locked loop exporting microwave frequency, and pdro exports
The frequency stability of signal and dds output signal and crystal oscillator are identicals, pdro output signal spuious better than -75dbc, export
The selection of frequency depends on the output frequency of final output frequency and dds, and fpdro+fdds output frequency is controlled in x frequency range,
Its frequency relation is fout=(fpdro+fdds) × 4.
The effect of frequency mixer is directly to be added the frequency relation of pdro with dds output signal, the local oscillator/radio frequency of frequency mixer
Frequency range is 5ghz ~ 20ghz, and intermediate operating frequency scope is dc ~ 7ghz, and local oscillation power scope is+7dbm ~ 13dbm, frequency conversion
Loss is 5db, local oscillator-radio frequency isolation 35db, and the effect of wave filter is to filter the output garbage signal of frequency mixer, retains
The frequency component of fpdro+fdds, amplifier is that the frequency component that wave filter is exported fpdro+fdds is amplified, and compensates frequency mixer
With the loss of wave filter, and by power bring up to doubler needs power level.
Manipulator is equivalent to a single-pole single-throw switch (SPST), and the continuous wave signal of input is modulated into pulse signal, and pulse is believed
Number temporal regularity and be added to the modulation pulsion phase of modulator control port with, manipulator is less than 2.4db in the Insertion Loss of x frequency range,
Isolation is more than 80db, and standing wave is less than 1.8.
The effect of doubler and amplifier is by the radiofrequency signal direct frequency doubling of x frequency range to ka frequency range, and amplifier exports
The signal of ka frequency range is: output 8mm signal power 80mw.
If Fig. 5 is receiving branch circuit composition frame chart, receiving branch mainly receives guided missile passage by reception antenna 2 and connects
The microwave signal received, and microwave signal is carried out process the frequency of signal and the time parameter that post analysis receive, inquiry connects
The circuit on revenue and expenditure road is made up of low-noise amplifier, wave filter, amplifier and power splitter, and the outfan of low-noise amplifier is electrical
It is connected with wave filter, the outfan of wave filter is electrically connected with amplifier, and the outfan of amplifier is electric with the input of power splitter
Property connect, the outfan of power splitter has been electrically connected with filter cell, and the outfan of filter cell passes through to be electrically connected respectively
The logarithmic detector connecing is electrically connected with comparator, and the outfan of logarithmic detector is electrically connected with analog switch, analog switch defeated
Go out end and be connected with time parameter measurement.
The signal receiving enters wave filter after first passing through low-noise amplifier, filters the garbage signal beyond bandwidth, so
After being mixed with the dro of a fixed frequency afterwards, by wave filter and amplifier, the signal receiving is down-converted to after l frequency range
Processed, processing procedure is to be divided into four road signals by power splitter, every road signal passes through corresponding band filter respectively,
When carrying out calibration for a radar, the signal receiving is only possible to fall in one of wave filter, and now this wave filter is defeated
Go out to have signal, and remaining wave filter does not have signal output, filter output signal, after logarithmic detector, enters comparator, sentences
Which path filter output does not have signal so that it may differentiate which frequency the signal being currently received is, logarithmic detector simultaneously
The video pulse of output goes to carry out time parameter measurement after analog switch synthesizes a road signal, and measurement result is given
1000022015.95 control unit.
As shown in fig. 6, when signal to noise ratio is for 10db, the sensitivity -90dbw of reception device, from low-noise amplifier, makes an uproar
Sonic system number can be better than 3db, and gain is set as 10db, and the therefore sensitivity in low noise amplifier output signal is -80dbw,
After mixing and filtering amplifies, export minimum signal -80dbw, amplifier is used for compensating the loss of frequency mixer and wave filter, frequency
Within 1ghz, signal to noise ratio is better than 7db to range set, and four wave filter outputs enter logarithmic detector, and logarithmic detector will adopt
Ad8313 circuit realiration, ad8313 bandwidth is 0.1ghz ~ 2.5ghz, and dynamic range is 70db, and output voltage is with input signal
Changed power and change, Changing Pattern is as shown in Figure 6.
In the present invention, the overall major parameter of radio response calibration equipment body 1.
During transmitting: be operated under the frequency of four kinds of fixing code names, the frequency of the transmission signal under all use conditions is by mistake
± 5 megahertzs of difference, power level 80 milliwatt of the pulse signal sending, transmission signal is operated in the side of transmitting antenna 3 under 0.5pmax
It is 6 ° ± 40 ' to line width, the polarizability of radiation signal is circle.
During reception: realize the reception of four kinds of code name frequencies, be under 10db in signal/noise ratio, the sensitivity of reception device-
90dbw, transmission frequency band 30～35 м hz of code name frequency, under 0.5 р max level, the deflection of reception antenna 2 is 45～
75, the non-stop run time is 8 hours, interrupts 1 hour, the DC voltage 27v ± 2.7v of needs, consumes electric current and is not more than
1.5a, overall dimensions 405 × 340 × 400 mm.
As shown in fig. 7, time sequential pulse coding rule:
A. the formation basic theory of command pulse sequence: command pulse sequence is formed it is ensured that to accordingly from the command encoder of radar
The radio response calibration equipment of location transmits two constant instruction " course angle constant instruction hxc ", " height constant instruction gdc ",
" arming instructs jcb ", " transponder inquiry instruction ydx ", optics transponder enabled instruction " exchanges and terminates jj ", the generation of instruction
Code is to be encoded by interpulse period, and when carrying out instruction code and sizes values coding, dispersion ratio is 0.995 microsecond, " boat
To angle constant instruction hxc ", " height constant instruction gdc " be to be made up of three pulse groups, " transponder inquiry instruction ydx " is by one
Individual three pulse groups and nine Ge Liang pulse races are constituted, and instruction " exchange and terminate jj " is to be constituted with two pulse groups, in any group of
It is spaced apart guided missile address ap, between first pulse and the 3rd pulse between first pulse and second pulse in pulse group
Be spaced apart instruction code.
If Fig. 8 is command pulse sequential structure, first pulse of pulse group " transponder inquiry instruction ydx " and instruction arteries and veins
Rush group " course angle constant instruction hxc ", between first pulse of " height constant instruction gdc ", be spaced apart instruction size value,
Instruction " arming instructs jcb " replaces instruction " transponder inquiry instruction ydx " to be transmitted.
Transmission instruction is distributed in potential point, and each potential point is asymmetric on a timeline, instructs " hxc ",
" gdc " can take up any point in 59 potential point, and instruction " ydx " occupies first potential point,
Instruction " jj " occupies the 22nd potential point.
When transmitter and receiver works, the duty ratio in order to ensure fixation will add to command pulse sequence: six
Guided missile address ap two pulse group, pulse group is evenly distributed on interval after instruction " ydx " transmission；When instruction " hxc " and " gdc "
When pulse group is overlapped with instruction " ydx " pulse group, the 12nd and the 13rd guided missile address pulse group occur.
Pulse is determined by first and the 3rd time interval between pulse tt, tpkb, tk, tb in the form of three pulses
Attribute.
Formed in instruction and clock pulses and the sequence of command pulse are formed on element outputs, these pulses are cumulatively added, send out
Deliver in transmitting antenna 3 manipulator, be converted into radio signal and radiated to calibration device orientation.
B., during instruction analysis calibration in radio response calibration equipment, send out from radar system instruction path antenna
The high-frequency signal penetrated, is received by radio response calibration device antenna, the microwave from antenna itself enters into inspection after frequency conversion
In ripple device, by the signal of diode detection with address pulse, the form of clock pulses and command pulse enters into pulse analysiss electricity
Lu Zhong.
Address and command pulse decoding that pulse analysiss circuit is spaced to appointment codes, isolate course and height control electricity
Pressure, radio response control instruction.
It is illustrated in figure 9 pulse analysiss circuit, including guided missile address storage devices, guided missile address decoder, command pulse
Decoder, echo impulse shaper and crystal oscillator composition, guided missile address code number format is the three of binary code repressentation
Digit, is set by the associated button of upper control computer man-machine dialog interface, the pulse train that cymoscope comes enters into guided missile
In address decoder, guided missile address code is spaced the address code interval in the storage device with storage and is compared by it, when
When they are consistent, send command pulse decoding and allow instruction.
When the guided missile address code of two pulses reaches pulse analysiss circuit every time, radio response calibration equipment starts arteries and veins
Rush shaper and send " synchronous " instruction of manipulator starting.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.
Claims (5)
1. a kind of radio response calibration equipment based on time sequential pulse coding, including radio response calibration equipment body (1),
It is characterized in that: described radio response calibration equipment body (1) is by transmitting antenna (3), reception antenna (2), address decoding control
Start-up circuit processed and calibration mounting bracket (4) composition, described transmitting antenna (3) includes response transmitting antenna and response transmitting
Road, the beam angle of transmitting antenna (3) is 6 ° ± 25 ', and frequency range is millimeter wave, and transmitting antenna (3) launches surface antenna, institute for offset-fed
State reception antenna (2) and include inquiry reception antenna and inquiry receiving branch, the frequency of reception antenna (2) is ku wave band, wave beam width
Spend for 45～75 °, reception antenna (2) is flat helical antenna, the reception antenna of described radio response calibration equipment body (1)
(2) high-frequency energy receiving radar emission converts thereof into control signal, produces response arteries and veins by radio direction finding response antenna
Rush signal；
Described radio response calibration equipment body (1) adopts time sequential pulse coding techniques, bistatic mode work and parameter
It is independently arranged, control triggering to form synchronized relation by radio response starting impulse, radio response calibration equipment body (1)
Reception antenna (2) receives radar emission signal, passes sequentially through video amplifier, shaping enters address decoder, and should with radio
Answer the address code setting in calibration equipment body (1) to compare, when comparing successfully, controlling pulse shaper to form radio should
Answer machine and laser response irradiator enabling signal.
2. a kind of radio response calibration equipment based on time sequential pulse coding according to claim 1 it is characterised in that:
The circuit of described response transmitting branch is made up of dds, doubler, pdro, 100mhz crystal oscillator, and the outfan of described dds electrically connects
It is connected to wave filter, the outfan of described wave filter is electrically connected with amplifier, and the outfan of described amplifier is electrically connected with tune
Device processed, the input of described dds is electrically connected with the outfan of doubler, the outfan of described 100mhz crystal oscillator and doubler
Input is electrically connected, and the outfan of 100mhz crystal oscillator is electrically connected with the input of pdro.
3. a kind of radio response calibration equipment based on time sequential pulse coding according to claim 1 it is characterised in that:
The polarization mode of described transmitting antenna (3) is circular polarisation or verticalization.
4. a kind of radio response calibration equipment based on time sequential pulse coding according to claim 1 it is characterised in that:
The circuit of described inquiry receiving branch is made up of low-noise amplifier, wave filter, amplifier and power splitter, described low noise amplification
The outfan of device is electrically connected with wave filter, and the outfan of described wave filter is electrically connected with amplifier, described amplifier defeated
The input going out end with power splitter is electrically connected, and the outfan of described power splitter has been electrically connected with filter cell, filtering
The outfan of device unit is electrically connected with comparator, the outfan electricity of described logarithmic detector by the logarithmic detector of electrical connection respectively
Property be connected with analog switch, the outfan of described analog switch is connected with time parameter measurement.
5. a kind of radio response calibration equipment based on time sequential pulse coding according to claim 1 it is characterised in that:
Described radio response calibration equipment body (1) is that 27v ± 2.7v runs in AC or DC voltage, consumes electric current and is not more than
1.5a.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610896506.4A CN106353740A (en) | 2016-10-14 | 2016-10-14 | Radio responding calibration equipment based on time sequence pulse encoding |
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| CN201610896506.4A CN106353740A (en) | 2016-10-14 | 2016-10-14 | Radio responding calibration equipment based on time sequence pulse encoding |
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| CN110376554A (en) * | 2018-04-12 | 2019-10-25 | 株式会社万都 | Radar system and sending device for the radar system |
| CN111812667A (en) * | 2019-04-10 | 2020-10-23 | 苏州科瓴精密机械科技有限公司 | Method for improving resolution of laser turntable and robot system |
| CN112639527A (en) * | 2018-06-27 | 2021-04-09 | 上海禾赛科技股份有限公司 | Adaptive coding for lidar systems |
| CN115657569B (en) * | 2022-12-14 | 2023-04-07 | 北京七星华创微波电子技术有限公司 | Millimeter wave broadband portable calibration source control system and method |
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2016
- 2016-10-14 CN CN201610896506.4A patent/CN106353740A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110376554A (en) * | 2018-04-12 | 2019-10-25 | 株式会社万都 | Radar system and sending device for the radar system |
| CN112639527A (en) * | 2018-06-27 | 2021-04-09 | 上海禾赛科技股份有限公司 | Adaptive coding for lidar systems |
| CN112639527B (en) * | 2018-06-27 | 2022-02-25 | 上海禾赛科技有限公司 | Adaptive coding for lidar systems |
| CN111812667A (en) * | 2019-04-10 | 2020-10-23 | 苏州科瓴精密机械科技有限公司 | Method for improving resolution of laser turntable and robot system |
| CN111812667B (en) * | 2019-04-10 | 2023-06-06 | 苏州科瓴精密机械科技有限公司 | Method for improving resolution of laser turntable and robot system |
| CN115657569B (en) * | 2022-12-14 | 2023-04-07 | 北京七星华创微波电子技术有限公司 | Millimeter wave broadband portable calibration source control system and method |
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Application publication date: 20170125 |