CN106301612A - The automatic test approach of inquisitor receiving sensitivity based on enumerator and system - Google Patents
The automatic test approach of inquisitor receiving sensitivity based on enumerator and system Download PDFInfo
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- CN106301612A CN106301612A CN201610702761.0A CN201610702761A CN106301612A CN 106301612 A CN106301612 A CN 106301612A CN 201610702761 A CN201610702761 A CN 201610702761A CN 106301612 A CN106301612 A CN 106301612A
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- iff interrogator
- enumerator
- inquisitor
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- inquiry
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
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Abstract
The invention discloses automatic test approach and the system of inquisitor receiving sensitivity based on enumerator, including: control unit arranges the frequency that will test of iff interrogator；Frequency and the power level of source analog device are set so that it is match with the frequency that will test of iff interrogator；Control unit control iff interrogator is in inquiry state and is operated, and source analog device receives signal response；By two counting channels of enumerator board, interrogation pulse and decoding spike are counted and calculate inquiry probability, when inquiring the index request that probability is not less than iff interrogator, improve the attenuation of programmable attenuator, during until inquiry probability is less than the index request of iff interrogator.The present invention uses enumerator that inquiry triggers pulse and adds up with the quantity decoding index pulse, it is achieved the automatic test of inquiry probability；The method using accurate metering, improves measuring accuracy.
Description
Technical field
The present invention relates to technical field of measurement and test, be specifically related to the automatic test of inquisitor receiving sensitivity based on enumerator
Method and system.
Background technology
Radio recognition equipment is indispensable a kind of equipment in modern air defence and coast defence system, including enemy and we's Identification Transponder
And iff interrogator, wherein iff interrogator is mainly equipped on the armament systems such as naval vessels, field tactical radar, with
Primary radar is with the use of completing to be accurately positioned target and enemy and we's identification.
In order to weigh the performance indications of iff interrogator, need launching power, tranmitting frequency, receiver decoding spirit
The indexs such as sensitivity are accurately tested.Wherein launch traditional microwave parameters such as power and tranmitting frequency and can utilize on market micro-
Ripple instrument and equipment is accurately tested, but the decoding sensitivity index for receiver is tested, and current method of testing is being surveyed
Examination precision and testing efficiency aspect there is also the biggest gap, are badly in need of seeking a kind of new method of testing and ask to solve these
Topic, is used for improving product quality and production efficiency.
The test block diagram of current iff interrogator receiver sensitivity is as shown in Figure 1.Computer passes through software design patterns
The frequency of iff interrogator, the most manually arranges frequency and the power level of source analog device so that it is identify inquiry with enemy and we
Ask the frequency coupling of machine.Computer control iff interrogator is in inquiry state and is operated, and source analog device receives letter
Number and response, observed interrogation pulses and the decoding spike of 1 second by the two of digital oscilloscope TCH test channels, by observing two
The dense degree of group pulse number statistics, relies on estimation inquiry probability (decoding index pulse number and inquiry arteries and veins that experience is rough
Rush the ratio of number), when inquiring the index request that probability is not less than iff interrogator, attenuator is manually set, improves
The attenuation of attenuator, repeats above-mentioned process, during until inquiry probability is less than the index request of iff interrogator, now
The output of source analog device and the difference of the attenuation of manual attenuator deduct path loss again and be enemy and we and identify inquiry
Ask the receiver decoding sensitivity of machine.Computer arranges other frequency of iff interrogator according to this by software, repeat on
State process, until all frequencies are completed, terminate the test of the receiver decoding sensitivity of iff interrogator.
The test mode of the sensitivity of iff interrogator receiver decoding at present is manual test, and testing efficiency is low, nothing
Method meets large-scale production testing requirement, uses by two group pulse numbers statistics dense on observation oscilloscope screen meanwhile
Degree, although the method inquiring probability can solve the problem that iff interrogator connects to rough the estimating of dependence experience to a certain extent
The test problem of receipts machine decoding sensitivity, but say the most inaccurate on the method stricti jurise, rely primarily on Test Engineer
Experience, it is impossible to forming unified standard, different Test Engineers may test result can be very different, to product
Quality also brings along certain uncertainty.
Summary of the invention
For solving the deficiency that prior art exists, the invention discloses inquisitor receiving sensitivity based on enumerator oneself
Dynamic method of testing and system, the present invention uses multichannel enumerator and programmable step attenuator, controls enemy and we by computer and knows
Other inquisitor and source analog device, it is achieved collaborative work, automatically test iff interrogator receiver decoding sensitivity, it is provided that
Testing efficiency and measuring accuracy, it is possible to be effectively improved product quality and production efficiency.
For achieving the above object, the concrete scheme of the present invention is as follows:
The automatic test approach of inquisitor receiving sensitivity based on enumerator, including:
Control unit arranges the frequency that will test of iff interrogator；
Control unit arranges frequency and the power level of source analog device so that it is with will testing of iff interrogator
Frequency match；
Control unit control iff interrogator is in inquiry state and is operated, and source analog device receives signal and also should
Answer；
By two counting channels of enumerator board, interrogation pulse and decoding spike are counted and calculate inquiry generally
Rate, when inquiring the index request that probability is not less than iff interrogator, control unit improves the attenuation of programmable attenuator,
During until inquiry probability is less than the index request of iff interrogator, it is calculated the receiver decoding of iff interrogator
Sensitivity；
Control unit arranges other frequency of iff interrogator according to this, repeats above-mentioned test process, until all frequencies
Point is completed.
Further, described inquiry probability is the decoding index pulse number that sends of iff interrogator and interrogation pulse
The ratio of number.
Further, the receiver decoding sensitivity of described iff interrogator, when calculating, is less than at inquiry probability
During the index request of iff interrogator, the output of source analog device now and the attenuation of programmable step attenuator
Difference deduct again path loss be iff interrogator receiver decoding sensitivity.
Further, described control unit all by control bus realize to iff interrogator, programmable attenuator and
The control of source analog device.
Further, described iff interrogator is by communicating with programmable attenuator with passage, it is achieved controlling
Decay to iff interrogator output signal under the control of unit.
The Auto-Test System of inquisitor receiving sensitivity based on enumerator, including:
Control unit, for arranging the frequency that will test of iff interrogator and arranging the frequency of source analog device
And power level so that it is match with the frequency that will test of iff interrogator；Control iff interrogator to be in
Inquiry state is operated, and source analog device receives signal response；
Enumerator board, two counting channels therein realize counting interrogation pulse and decoding spike and calculating inquiry
Ask probability；
Programmable attenuator, for when inquiring the index request that probability is not less than iff interrogator, in control unit
Control the attenuation of lower raising programmable attenuator, until inquiry probability is less than the index request of iff interrogator, control single
Unit is calculated the receiver decoding sensitivity of iff interrogator.
Further, described control unit and enumerator board are all contained in computer.
Further, described computer is respectively by controlling bus and iff interrogator, programmable attenuator and information source
Simulator is connected.
Further, described iff interrogator and passage connect programmable step attenuator one end, program control stepping declines
The other end subtracting device connects source analog device.
Further, two counting channels of described enumerator board respectively with iff interrogator interrogation pulse passage
It is connected with decoding spike passage.
Beneficial effects of the present invention:
1. the present invention test request according to inquisitor receiving sensitivity and the technical characterstic of inquisitor, how emphasis solves
Improve quality and the technical problem of production efficiency, improve measuring accuracy and test speed.
2. the present invention uses enumerator to add up the quantity of inquiry triggering pulse with decoding index pulse, calculates decoding
Index pulse triggers the ratio of pulse with inquiry, namely inquires probability, it is achieved the automatic test of inquiry probability；Use accurately meter
The method of number, improves measuring accuracy.Use automatic test approach, improve test speed and testing efficiency.
3. the present invention uses programmable step attenuator, as the amplitude magnitude regulator of reception signal, is made by inquiry probability
It is circulated test for whether controlling the essential condition of programmable step attenuator regulation stepping attenuation, improves testing efficiency.
Accompanying drawing explanation
Fig. 1 iff interrogator receiving sensitivity test block diagram；
Fig. 2 iff interrogator based on enumerator receiving sensitivity tests connection block diagram automatically；
Fig. 3 decodes sensitivity software development process figure.
Detailed description of the invention:
The present invention is described in detail below in conjunction with the accompanying drawings:
As in figure 2 it is shown, the Auto-Test System of inquisitor receiving sensitivity based on enumerator, computer-internal is provided with
According to high-speed multiple channel parallel counter board based on pci bus, two counting channels of enumerator board connect enemy respectively
I identify inquisitor interrogation pulse with decoding mark, iff interrogator and passage connect programmable step attenuator one end,
The other end of programmable step attenuator connects source analog device, and all devices is connected to computer, computer by controlling bus
The duty of these equipment can be configured by controlling bus and control.
Computer by the frequency of software design patterns iff interrogator, the most automatically arrange source analog device frequency and
Power level so that it is mate with the frequency of iff interrogator, coupling specifically refers to herein: the enemy and we of computer installation identify
The frequency of inquisitor is known, by the frequency of computer installation source analog device so that it is frequency and iff interrogator
Frequency identical be coupling.Computer control iff interrogator is in inquiry state and is operated, and source analog device connects
Collect mail number and a response, by two counting channels of enumerator board interrogation pulse and decoding spike counted and calculate inquiry
Ask probability (decoding index pulse number and the ratio of interrogation pulse number), when inquiry probability is not less than iff interrogator
During index request, control to arrange attenuator, improve the attenuation of attenuator, repeat above-mentioned process, until inquiry probability is less than
During the index request of iff interrogator, the difference of the output of source analog device now and the attenuation of programmable attenuator
Value deducts path loss again and is the receiver decoding sensitivity of iff interrogator.Computer arranges enemy according to this by software
I identifies other frequency of inquisitor, repeats said process, until all frequencies are completed, terminates iff interrogator
The test of receiver decoding sensitivity.
Wherein, path loss is before testing, arranges the attenuation of programmable step attenuator when being 0, passes through vector network
The transmission testing method of analyser tests this path loss.
Software development flow is as shown in Figure 3.The automatic test approach of inquisitor receiving sensitivity based on enumerator, bag
Include:
Control unit arranges the frequency that will test of iff interrogator；
Control unit arranges frequency and the power level of source analog device so that it is with will testing of iff interrogator
Frequency match；
Control unit control iff interrogator is in inquiry state and is operated, and source analog device receives signal and also should
Answer；
By two counting channels of enumerator board, interrogation pulse and decoding spike are counted and calculate inquiry generally
Rate, when inquiring the index request that probability is not less than iff interrogator, control unit improves the attenuation of programmable attenuator,
During until inquiry probability is less than the index request of iff interrogator, it is calculated the receiver decoding of iff interrogator
Sensitivity；
Control unit arranges other frequency of iff interrogator according to this, repeats above-mentioned test process, until all frequencies
Point is completed.
Enumerator in this programme can use the digital oscilloscope with tally function to substitute, and uses band counting merit
The oscillograph of energy substitutes, and on the one hand cost can be dramatically increased, and cost performance is low, a lot of oscillographic skill of still further aspect
Art function is not oscillographic major function, if using test automatically, and can only be by reading oscillograph a period of time screen
Curtain data, then be analyzed obtaining by computer, test the data precision is inadequate.But compared with this programme, testing into
Can have greatly increased on Ben, in terms of cost performance, there is no comparability with this programme.
This field does not also find the scheme substituted with enumerator, it may be possible to enumerator substitutes oscillograph, needs to be programmed
The reason processed, when additionally testing in this field, the general method used is two pulse signals on observation oscilloscope screen
Dense degree, judges by qualitative.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not the present invention is protected model
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not
Need to pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (10)
1. the automatic test approach of inquisitor receiving sensitivity based on enumerator, is characterized in that, including:
Control unit arranges the frequency that will test of iff interrogator；
Control unit arranges frequency and the power level of source analog device so that it is with the frequency that will test of iff interrogator
Point matches；
Control unit control iff interrogator is in inquiry state and is operated, and source analog device receives signal response；
By two counting channels of enumerator board, interrogation pulse and decoding spike are counted and calculate inquiry probability, when
When inquiry probability is not less than the index request of iff interrogator, control unit improves the attenuation of programmable attenuator, until
When inquiry probability is less than the index request of iff interrogator, the receiver decoding being calculated iff interrogator is sensitive
Degree；
Control unit arranges other frequency of iff interrogator according to this, repeats above-mentioned test process, until all frequencies are surveyed
Try complete.
2. the automatic test approach of inquisitor receiving sensitivity based on enumerator as claimed in claim 1, is characterized in that, institute
Stating inquiry probability is the ratio decoding index pulse number and interrogation pulse number that iff interrogator sends.
3. the automatic test approach of inquisitor receiving sensitivity based on enumerator as claimed in claim 1, is characterized in that, institute
State the receiver decoding sensitivity of iff interrogator when calculating, at inquiry probability less than the index of iff interrogator
During requirement, the output of source analog device now deducts path loss again with the difference of the attenuation of programmable step attenuator
It is the receiver decoding sensitivity of iff interrogator.
4. the automatic test approach of the inquisitor receiving sensitivity based on enumerator as described in claim 1-3 is arbitrary, it is special
Levying and be, described control unit is all by controlling bus realization to iff interrogator, programmable attenuator and source analog device
Control.
5. the automatic test approach of inquisitor receiving sensitivity based on enumerator as claimed in claim 1, is characterized in that, institute
State iff interrogator by communicating with programmable attenuator with passage, it is achieved under the control of the control unit enemy and we are known
The decay of other inquisitor output signal.
6. the Auto-Test System of inquisitor receiving sensitivity based on enumerator, is characterized in that, including:
Control unit, for arranging the frequency that will test of iff interrogator and arranging frequency and the merit of source analog device
Rate level so that it is match with the frequency that will test of iff interrogator；Control iff interrogator and be in inquiry
State is operated, and source analog device receives signal response；
Enumerator board, it is general that two counting channels therein realize interrogation pulse and decoding spike being counted and calculated inquiry
Rate；
Programmable attenuator, for when inquiring the index request that probability is not less than iff interrogator, in control unit control
The attenuation of lower raising programmable attenuator, until inquiry probability is less than the index request of iff interrogator, control unit meter
Calculate the receiver decoding sensitivity obtaining iff interrogator.
7. the Auto-Test System of inquisitor receiving sensitivity based on enumerator as claimed in claim 6, is characterized in that, institute
State control unit and enumerator board is all contained in computer.
8. the Auto-Test System of inquisitor receiving sensitivity based on enumerator as claimed in claim 7, is characterized in that, institute
State computer to be connected with iff interrogator, programmable attenuator and source analog device by control bus respectively.
9. the Auto-Test System of inquisitor receiving sensitivity based on enumerator as claimed in claim 6, is characterized in that, institute
That states iff interrogator connects programmable step attenuator one end with passage, and the other end of programmable step attenuator connects information source
Simulator.
The Auto-Test System of inquisitor receiving sensitivity based on enumerator the most as claimed in claims 6 or 7, its feature
Be, two counting channels of described enumerator board respectively with iff interrogator interrogation pulse passage and decoding spike passage
It is connected.
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| CN201610702761.0A CN106301612B (en) | 2016-08-22 | 2016-08-22 | The automatic test approach and system of inquisitor receiving sensitivity based on counter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107102321A (en) * | 2017-06-01 | 2017-08-29 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The protection device of pulse secondary radar equipment under multiple-pulse environment |
| CN109152087A (en) * | 2018-07-26 | 2019-01-04 | 同方电子科技有限公司 | A kind of enemy and we's identification function extended method based on radio station |
| CN112422203A (en) * | 2020-11-06 | 2021-02-26 | 四川九洲空管科技有限责任公司 | MSK decoding sensitivity accurate test method applied to interrogator |
| CN113050052A (en) * | 2021-03-08 | 2021-06-29 | 四川九洲空管科技有限责任公司 | Multi-target response simulation method for friend or foe identification system |
| CN113259047A (en) * | 2021-05-12 | 2021-08-13 | 深圳华创电科技术有限公司 | IFF Mark XIIA Mode5 signal high-sensitivity detection method and system |
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| CN103199946A (en) * | 2013-04-03 | 2013-07-10 | 西北工业大学 | Sensitivity index testing method of radio frequency receiver |
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| US7756197B1 (en) * | 2003-11-26 | 2010-07-13 | Pmc-Sierra, Inc. | Built in self test (BIST) for high-speed serial transceivers |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107102321A (en) * | 2017-06-01 | 2017-08-29 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The protection device of pulse secondary radar equipment under multiple-pulse environment |
| CN107102321B (en) * | 2017-06-01 | 2020-08-28 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Protection device of pulse secondary radar equipment under multi-pulse environment |
| CN109152087A (en) * | 2018-07-26 | 2019-01-04 | 同方电子科技有限公司 | A kind of enemy and we's identification function extended method based on radio station |
| CN109152087B (en) * | 2018-07-26 | 2022-02-11 | 同方电子科技有限公司 | Radio station-based extension method for friend or foe identification function |
| CN112422203A (en) * | 2020-11-06 | 2021-02-26 | 四川九洲空管科技有限责任公司 | MSK decoding sensitivity accurate test method applied to interrogator |
| CN112422203B (en) * | 2020-11-06 | 2023-03-14 | 四川九洲空管科技有限责任公司 | MSK decoding sensitivity accurate test method applied to interrogator |
| CN113050052A (en) * | 2021-03-08 | 2021-06-29 | 四川九洲空管科技有限责任公司 | Multi-target response simulation method for friend or foe identification system |
| CN113050052B (en) * | 2021-03-08 | 2022-08-09 | 四川九洲空管科技有限责任公司 | Multi-target response simulation method for friend or foe identification system |
| CN113259047A (en) * | 2021-05-12 | 2021-08-13 | 深圳华创电科技术有限公司 | IFF Mark XIIA Mode5 signal high-sensitivity detection method and system |
| CN113259047B (en) * | 2021-05-12 | 2023-03-03 | 深圳华创电科技术有限公司 | IFF Mark XIIA Mode5 signal high-sensitivity detection method and system |
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