CN106679694B - The air-air response Time delay measurement Precision calibration device and method of tacan beacon simulator - Google Patents
The air-air response Time delay measurement Precision calibration device and method of tacan beacon simulator Download PDFInfo
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- CN106679694B CN106679694B CN201611174296.4A CN201611174296A CN106679694B CN 106679694 B CN106679694 B CN 106679694B CN 201611174296 A CN201611174296 A CN 201611174296A CN 106679694 B CN106679694 B CN 106679694B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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Abstract
The present invention provides a kind of air-air response Time delay measurement Precision calibration device and methods of tacan beacon simulator, computer controls tacan beacon simulator and exports distance measurement inquiring pulse, tacan beacon simulator exports distance measurement inquiring trigger signal simultaneously, and triggering vector signal generator exports ranging transponder pulse；Ranging transponder pulse is after power amplification as the ranging answer signal of tacan beacon simulator, oscilloscope measurement goes out the time difference between distance measurement inquiring signal and ranging answer signal, it is compared with the air-air response delay measurements that tacan beacon simulator measurement obtains, and cable length between tacan beacon simulator and circulator is subjected to time bias, obtain the air-air response Time delay measurement precision of simulator Tacan.Of the invention has the characteristics that traceability is good, measurement accuracy is high, strong operability, is greatly improved the air-air range accuracy of airborne equipment.
Description
Technical field
The present invention relates to tacan beacon simulator (TACAN Beason Simulator), are used for tacan beacon simulator
The calibration of air-air airborne equipment delay precision.
Background technique
Tacan beacon simulator is the special equipment for checking, testing, calibrating Tacan airborne equipment technical indicator, has ground-
Empty and air-air two kinds of operating modes, ground-air mode can simulate position problems of the aircraft relative to surface beacon, air-air mode
Then simulate aircraft in the sky between relative position, working frequency range be 1025~1150MHz, it is identical as ground-air range measurement principle,
Using inquiry response formula pulse ranging, wing plane issues distance measurement inquiring signal as challenger, and leader receives survey as transponder
It after request signal, is decoded first, by constant time lag (X mode is 62 μ s, and Y mode is 74 μ s), issues transponder pulse,
The transponder pulse that wing plane as challenger issues leader is demodulated, is decoded, and measurement interrogation pulse and answer signal are passed through
Between time difference, while subtracting the fixed delay of transponder, can calculate leader between wing plane at a distance from, calculation formula is such as
Under:
T: wing plane issues request signal and receives the time interval of leader answer signal；
T0: the constant time lag of leader (transponder)；
C: radio propagation speed is equal to 3 × 108m/s。
Currently, in research and production using it is more be China Electronics Technology Group Corporation No. 20 Research Institute and Baoji
The DTS-200 type of Tacan simulator and aico republic electrnics company, the U.S. that 765 factories develop, these moulds
Intend device in air-air working method, the test method of imperfect airborne equipment Time delay measurement, to airborne equipment it is air-air away from
From calibration tape come certain deviation.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of air-air response delay of calibration Tacan signal simulator
The device of measurement accuracy.
The technical solution adopted by the present invention to solve the technical problems is: a kind of air-air response of Tacan signal simulator is prolonged
When measurement accuracy calibration device, computer control tacan beacon simulator export the distance measurement inquiring pulse under air-air mode, through ring
Shape device accesses oscillograph, measures for request signal, while tacan beacon simulator exports distance measurement inquiring trigger signal, makees all the way
For the time reference of oscilloscope measurement, another way triggers vector signal generator and exports ranging transponder pulse；Ranging transponder pulse
After power amplification, by directional coupler, it is coupled out all the way through circulator, the ranging response as tacan beacon simulator is believed
Number, it is coupled out another way access oscillograph, is measured for answer signal；Oscilloscope measurement goes out distance measurement inquiring signal and ranging response
Time difference between signal is compared with the air-air response delay measurements that tacan beacon simulator measurement obtains, and by tower
Cable length carries out time bias between Kang Xinbiao simulator and circulator, obtains the air-air response Time delay measurement of simulator Tacan
Precision.
The present invention also provides a kind of air-air response Time delay measurement Precision calibration method of Tacan signal simulator, including it is following
Step:
It is equivalent to obtain cable to the cable length L between circulator for step 1, measurement Tacan signal simulator radio frequency interface
Time delayWherein C=300m/ μ s is radio propagation speed；
Step 2, the air-air mode radio frequency channel of the Tacan function of Tacan signal simulator are within the scope of 1X~126X and 1Y~126Y
Setting, output power levels are -10dBm；
Step 3, vector signal generator output power are set as 18dBm, and output frequency is set as simulating with Tacan signal
The corresponding answer signal frequency of device；
Step 4 answers the ranging of the Tacan signal simulator distance measurement inquiring signal issued and vector signal generator output
It answers signal and carries out Hilbert transformation, obtain the envelope of distance measurement inquiring signal and ranging answer signal；
Step 5, the Time delay for adjusting vector signal generator, obtain distance measurement inquiring signal and ranging answer signal when
Between it is poor, for X radio frequency channel be 62 μ s-T0, it is 74 μ s-T for Y radio frequency channel0, wherein distance measurement inquiring signal and ranging answer signal when
Between measurement point be first pulse envelope half-amplitude point；
Step 6 measures Tacan signal simulator airborne equipment delay measurements T, then Tacan signal simulator airborne equipment
Time delay measurement precision is Δ T=T-62 μ S+T for X radio frequency channel0, it is Δ T=T-74 μ S+T for Y radio frequency channel0。
The beneficial effects of the present invention are: having the characteristics that traceability is good, measurement accuracy is high, strong operability, solves Tacan
The calibration problem of the air-air response Time delay measurement precision of signal simulator is applied to the air-air response delay essence of simulator airborne equipment
The calibration of degree is greatly improved the air-air range accuracy of airborne equipment.
Detailed description of the invention
Fig. 1 is the air-air response Time delay measurement Precision calibration device block diagram of simulator Tacan.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples, and the present invention includes but are not limited to following implementations
Example.
GJB914-90 " Tacan system semaphore request and test method " regulation is air-air apart from the answering delay time are as follows: X mould
Formula is 62 ± 0.1 μ s, and Y mode is 74 ± 0.1 μ s, that is to say, that airborne equipment emits interrogation pulse to rear, in X mode pulse pair
62 μ s after timing point, 74 μ s after Y mode pulse pair timing point, when antenna receives transponder pulse, distance is designated as 0km.
To the incomplete status of the air-air response Time delay measurement precision calibration method of Tacan signal simulator, based on Tacan sky-
Empty range measurement principle, the invention proposes using all purpose instrument calibration air-air response Time delay measurement precision of Tacan signal simulator
Method, content are as follows:
1. the air-air response Time delay measurement Precision calibration device of Tacan signal simulator is as shown in Figure 1.
Tacan beacon simulator is set as the air-air mode of Tacan, exports air-air distance measurement inquiring pulse, accesses through circulator
Oscillograph is measured for request signal, while the distance measurement inquiring trigger signal of simulator output, all the way as oscilloscope measurement
Time reference, another way trigger vector signal generator and export ranging transponder pulse；Vector signal generator exports ranging response
Pulse is through power amplification, by directional coupler all the way through circulator, as the ranging answer signal of simulator, another way access
Oscillograph is measured for answer signal.Go out the time difference between request signal and answer signal by oscilloscope measurement, the time
Difference is compared with the air-air response delay measurements that simulator measurement obtains, and by simulator radio frequency interface and circulator it
Between cable length carry out time bias, so that it may obtain the air-air response Time delay measurement precision of simulator Tacan.Here, computer is logical
It crosses router and realizes that the time data of oscilloscope measurement can be stored in meter by router to Tacan signal waveform modelling and control
In calculation machine, just with subsequent analysis, calculate.
2. measuring simulator radio frequency interface to cable between circulator (L3) length L, then the Equivalent time delay of the cable
ForWherein C=300m/ μ s is radio propagation speed.
3. the air-air mode radio frequency channel of simulator Tacan function can be arranged within the scope of 1X~126X and 1Y~126Y, output work
Rate level is -10dBm.
4. vector signal source output power is set as 18dBm, output frequency is set as answer signal corresponding with simulator
Frequency.
5. request signal and (CH2) connected vector of channel 2 that the connected simulator of pair channel oscilloscope 1 (CH1) issues are believed
The answer signal of number source output carries out Hilbert transformation using the math function of digital oscilloscope, obtains simulator output inquiry
The envelope of signal and vector signal source output answer signal.
6. adjusting the Time delay of vector signal source, the request signal and 2 vector signal source of channel in measuring oscilloscope channel 1
The time difference of the answer signal of output is 62 μ s-T for X radio frequency channel0, it is 74 μ s-T for Y radio frequency channel0, wherein it request signal and answers
The time measurement point for answering signal is the half-amplitude point of first pulse envelope.
7. simulator airborne equipment delay measurements are T at this time for observation, then simulator airborne equipment Time delay measurement precision pair
In X radio frequency channel be Δ T=T-62 μ S+T0, it is Δ T=T-74 μ S+T for Y radio frequency channel0。
Based on the air-air range measurement principle of Tacan, it is contemplated that Project Realization, the embodiment of the present invention are proposed using universal test
The method of the air-air response Time delay measurement precision of instrumental calibration Tacan signal simulator.
Step 1: the air-air response delay precision of building Tacan signal simulator tests environment
Environment is tested as shown in Figure 1, the dynamic range that can wherein receive circuit according to Tacan signal simulator selects suitably
L-band power amplifier.
Channel 1 (CH1) of the simulator radio frequency interface through circulator access oscillograph, that is, simulator output ranging is ask
Ask that signal accesses oscillograph.
Simulator inquires that trigger signal is synchronous on the distance measurement inquiring signal time of output, is divided into two-way, uses all the way
Transponder pulse signal, the channel of the transponder pulse signal access oscillograph of vector signal source output are generated in triggering vector signal source
2 (CH2) access channel oscilloscope 3 (CH3) with the measurement another way with answer signal, the synchronous base as oscilloscope measurement
Signal.
Here, to reduce calibrated error, cable (L1) is consistent with the length of cable (L2).
Step 2: measurement simulator radio frequency interface calculates its equivalent delay to cable length between circulator
It is m that simulator radio frequency interface, which is L unit to cable between circulator (L3) length, then the equivalent time of the cable prolongs
Chi WeiWherein C=300m/ μ s is radio propagation speed.
Step 3: simulator setting
The air-air mode radio frequency channel of simulator can be arranged within the scope of 1X~126X and 1Y~126Y, output power levels be-
10dBm。
Step 4: vector signal source setting
Vector signal source output power is set as 18dBm, and output frequency is set as answer signal frequency corresponding with simulator
Rate.
Step 5: the request signal issued to the connected simulator of channel oscilloscope 1 (CH1) connect arrow with channel 2 (CH2)
The answer signal for measuring signal source output carries out Hilbert transformation using the math function of digital oscilloscope, obtains simulator output
The envelope of request signal and vector signal source output answer signal.
Note: Hilbert transformation is a kind of method that time domain real signal is become to time domain analytic signal, and Hilbert converts institute
The real part of the analytic signal obtained is real signal itself, and imaginary part is the Hilbert transformation of real signal, and the amplitude of analytic signal is
The envelope of real signal.
Step 6: adjusting the Time delay of vector signal source, swears the request signal envelope of channel oscilloscope 1 and channel 2
The time difference for measuring the answer signal envelope of signal source output is 62 μ s-T for X radio frequency channel0, it is 74 μ s-T for Y radio frequency channel0, wherein
The time measurement point of request signal and answer signal is the half-amplitude point of first pulse envelope.
Step 7: the air-air response delay precision test of Tacan signal simulator
Simulator airborne equipment delay measurements are T at this time for observation, then simulator airborne equipment Time delay measurement precision is for X
Radio frequency channel is Δ T=T-62 μ S+T0, it is Δ T=T-74 μ S+T for Y radio frequency channel0。
Note: change simulator radio frequency channel and vector signal source output frequency can measure Tacan signal simulator under not cochannel
Air-air response delay precision.
Claims (2)
1. a kind of air-air response Time delay measurement Precision calibration device of tacan beacon simulator, it is characterised in that: the tacan beacon
The air-air response Time delay measurement Precision calibration device of simulator includes computer, tacan beacon simulator, circulator, oscillograph, arrow
Signal generator and directional coupler are measured, computer control tacan beacon simulator exports the letter of the distance measurement inquiring under air-air mode
Number, oscillograph is accessed through circulator, is measured for request signal, while tacan beacon simulator output distance measurement inquiring triggering letter
Number, all the way as the time reference of oscilloscope measurement, another way triggers vector signal generator and exports ranging answer signal；Ranging
Answer signal is after power amplification, by directional coupler, is coupled out the survey all the way through circulator, as tacan beacon simulator
Away from answer signal, it is coupled out another way access oscillograph, is measured for answer signal；Oscilloscope measurement go out distance measurement inquiring signal with
Time difference between ranging answer signal, the air-air response delay measurements obtained with tacan beacon simulator measurement are compared
Compared with, and cable length between tacan beacon simulator and circulator is subjected to time bias, obtain the air-air response of simulator Tacan
Time delay measurement precision.
2. a kind of air-air response Time delay measurement Precision calibration method of tacan beacon simulator using claim 1 described device,
It is characterized by comprising following step:
Step 1, measurement Tacan signal simulator radio frequency interface obtain cable equivalent time to the cable length L between circulator
DelayWherein C=300m/ μ s is radio propagation speed；
Step 2, the air-air mode radio frequency channel of the Tacan function of Tacan signal simulator are set within the scope of 1X~126X and 1Y~126Y
It sets, output power levels are -10dBm；
Step 3, vector signal generator output power are set as 18dBm, and output frequency is set as and Tacan signal simulator pair
The answer signal frequency answered；
Step 4 believes the ranging response of the Tacan signal simulator distance measurement inquiring signal issued and vector signal generator output
Number carry out Hilbert transformation, obtain the envelope of distance measurement inquiring signal and ranging answer signal；
Step 5, the Time delay for adjusting vector signal generator, obtain the time of distance measurement inquiring signal Yu ranging answer signal
Difference is 62 μ s-T for X radio frequency channel0, it is 74 μ s-T for Y radio frequency channel0, wherein the time of distance measurement inquiring signal and ranging answer signal
Measurement point is the half-amplitude point of first pulse envelope；
Step 6, measurement Tacan signal simulator airborne equipment delay measurements T, then Tacan signal simulator airborne equipment is delayed
Measurement accuracy is Δ T=T-62 μ S+T for X radio frequency channel0, it is Δ T=T-74 μ S+T for Y radio frequency channel0。
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| CN108120964B (en) * | 2017-11-22 | 2021-12-07 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Method for dynamically testing time delay data of secondary radar local machine to improve ranging precision |
| CN107807351B (en) * | 2017-11-28 | 2024-05-07 | 天津七六四通信导航技术有限公司 | Takang test and monitoring device |
| CN108196249B (en) * | 2017-12-29 | 2021-12-28 | 中国电子科技集团公司第二十研究所 | Method for realizing compatibility of Takang ground beacon and ground monitoring function |
| CN108318053B (en) * | 2018-01-31 | 2020-09-18 | 北京空间机电研究所 | Method and system for measuring imaging time calibration precision of space optical remote sensing camera |
| CN114088978A (en) * | 2021-11-16 | 2022-02-25 | 中国电子科技集团公司第二十研究所 | PXI structure-based calibration method and device for TACAN signal speed parameters |
| CN115047445A (en) * | 2022-08-17 | 2022-09-13 | 四川九洲空管科技有限责任公司 | Random response delay-based friend-foe identification de-interleaving method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH085725A (en) * | 1994-06-21 | 1996-01-12 | Nec Corp | Spectrum reducing device |
| CN102829797A (en) * | 2012-08-22 | 2012-12-19 | 广州航新航空科技股份有限公司 | PXI synthetic instrument-based TACAN simulator |
| CN103634023A (en) * | 2013-11-26 | 2014-03-12 | 中国电子科技集团公司第四十一研究所 | High-precision width-suitable pulse answering circuit and method |
| CN103900616A (en) * | 2014-04-16 | 2014-07-02 | 中国人民解放军空军航空仪器设备计量总站 | Tacan simulator metering method and Tacan simulator metering device |
-
2016
- 2016-12-19 CN CN201611174296.4A patent/CN106679694B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH085725A (en) * | 1994-06-21 | 1996-01-12 | Nec Corp | Spectrum reducing device |
| CN102829797A (en) * | 2012-08-22 | 2012-12-19 | 广州航新航空科技股份有限公司 | PXI synthetic instrument-based TACAN simulator |
| CN103634023A (en) * | 2013-11-26 | 2014-03-12 | 中国电子科技集团公司第四十一研究所 | High-precision width-suitable pulse answering circuit and method |
| CN103900616A (en) * | 2014-04-16 | 2014-07-02 | 中国人民解放军空军航空仪器设备计量总站 | Tacan simulator metering method and Tacan simulator metering device |
Non-Patent Citations (2)
| Title |
|---|
| 一种精密测距模拟器系统延时的测量方法;李占明等;《电子科技》;20110731;第24卷(第7期);第97-99页 * |
| 地面塔康信号设备模拟器的设计;缪国锋等;《电子科学技术》;20140731;第1卷(第1期);第45-49页 * |
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