CN105553580B - A kind of detection method - Google Patents

A kind of detection method Download PDF

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Publication number
CN105553580B
CN105553580B CN201510884384.2A CN201510884384A CN105553580B CN 105553580 B CN105553580 B CN 105553580B CN 201510884384 A CN201510884384 A CN 201510884384A CN 105553580 B CN105553580 B CN 105553580B
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CN
China
Prior art keywords
signal
answering machine
power
value
pulse
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CN201510884384.2A
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Chinese (zh)
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CN105553580A (en
Inventor
梅艳
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四川九洲电器集团有限责任公司
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Priority to CN201510884384.2A priority Critical patent/CN105553580B/en
Publication of CN105553580A publication Critical patent/CN105553580A/en
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Publication of CN105553580B publication Critical patent/CN105553580B/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/765Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with exchange of information between interrogator and responder
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/767Responders; Transponders

Abstract

The invention discloses a kind of detection method, for solving the problems, such as to be difficult to the operating accuracy for detecting answering machine in the prior art.The detection method includes:Answering machine obtains the predeterminated frequency value of signal and predetermined power value;Based on the predeterminated frequency value and predetermined power value, the answering machine is by output terminal to power probe transmission power level signal;Power level signal conversion is characterized electric signal by the power probe by conversion circuit, and the feature electric signal is sent to measuring receiver;Measuring receiver determines the performance number of the power level signal according to the feature electric signal, and by the performance number of acquisition compared with the predetermined power value.

Description

A kind of detection method

Technical field

The present invention relates to electronic technology field, more particularly to a kind of detection method.

Background technology

Answering machine is can be when receiving request-information message signal, the electronic equipment that is given a response automatically to signal.In aviation In, answering machine is mainly as aerial anti-collision system (the Traffic Collision in auxiliary aviation traffic control and machine Avoidance System;Referred to as:TCAS) use, the job stability and precision of answering machine are transported for the safety of spacecraft Row is particularly important.

But lack effective detection method currently for the operating accuracy of answering machine, causing aviation safety, there are hidden danger.

The content of the invention

The embodiment of the present application provides a kind of detection method, for solving to be difficult to the work for detecting answering machine essence in the prior art The problem of spending.

In a first aspect, the embodiment of the present application provides a kind of detection method, including:

Answering machine obtains the predeterminated frequency value of signal and predetermined power value;

Based on the predeterminated frequency value and the predetermined power value, the answering machine is sent out by output terminal to power probe Send power level signal;

Power level signal conversion is characterized electric signal by the power probe by conversion circuit, and by the spy Sign electric signal is sent to measuring receiver;

Measuring receiver determines the performance number of the power level signal according to the feature electric signal, and by the institute of acquisition Performance number is stated compared with the predetermined power value.

Optionally, the answering machine by output terminal before power probe transmission power level signal, the method It further includes:

The power level that the measuring receiver receives signal generator transmission is 0dBm, frequency values are the predeterminated frequency The working signal of value.

Optionally, the power level sent in measuring receiver reception signal generator is 0dBm, frequency values are institute Before the working signal for stating predeterminated frequency value, the method further includes:

When the measuring receiver is connected with the power probe, the measuring receiver carries out certainly according to calibration circuit Calibration.

Optionally, the output terminal of the answering machine is antenna output end;

The answering machine by output terminal before power probe transmission power level signal, further include:

Operating mode is switched to antenna carrier operating mode by the answering machine.

Optionally, the output terminal of the answering machine is RF output end;

The answering machine by output terminal before power probe transmission power level signal, further include:

Operating mode is switched to radio-frequency carrier operating mode by the answering machine.

Second aspect, the embodiment of the present application provide a kind of detection method, including:

Answering machine obtains the predetermined pulse parameter of signal;

Based on the predetermined pulse parameter, the answering machine sends output signal by output terminal to wave detector;

By detecting circuit, the demodulation from the output signal filters out pulse signal to the wave detector, and by the pulse Signal is sent to oscillograph;

Oscillograph determines the pulse parameter of the pulse signal, and the pulse parameter determined is preset with described Pulse parameter is compared.

Optionally, before answering machine sends output signal by output terminal to wave detector, the method further includes:

Operating mode is switched to answering machine XPDR patterns by the answering machine.

Optionally, before the pulse signal is sent to oscillograph by the wave detector, the method further includes:

The impedance for the input terminal being connected with the wave detector is arranged to 50 Ω by the oscillograph.

Optionally, the predetermined pulse parameter includes:Pulse spacing, pulse width, rise time, fall time, phase At least one of in transit time.

The one or more technical solutions provided in the embodiment of the present application, have at least the following technical effects or advantages:

In the embodiment of the present application, the output signal of answering machine is switched to by measuring receiver by power probe and is capable of determining that The characteristic signal of performance number, so that measuring receiver feature based electric signal determines the actual power value of output signal, And compared with exporting the predetermined power value of signal, intuitively to know the precision of answering machine output signal.

Description of the drawings

In order to illustrate more clearly of the technical solution in the embodiment of the present application, make required in being described below to embodiment Attached drawing is briefly introduced, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for this For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these attached drawings His attached drawing.

Fig. 1 is the schematic diagram of detecting system in the embodiment of the present application;

Fig. 2 is a kind of flow diagram of detection method in the embodiment of the present application;

Fig. 3 is the schematic diagram of another detecting system in the embodiment of the present application;

Fig. 4 is the flow diagram of another detection method in the embodiment of the present application.

Specific embodiment

Technical solution of the present invention is described in detail below by attached drawing and specific embodiment, it should be understood that the application Specific features in embodiment and embodiment are to the detailed description of technical solution of the present invention rather than to the technology of the present invention The restriction of scheme, in the case where there is no conflict, the technical characteristic in the embodiment of the present application and embodiment can be mutually combined.

The equipment involved in the embodiment of the present application is introduced first, and Fig. 1 is for detecting the power of the output signal of answering machine It is worth the schematic diagram of the system of precision.

Wherein, answering machine 10 automatically can give a response signal when receiving request-information message signal, for example, passing through sky The signal that pipe answering machine returns, can know the ginsengs such as flying height, flying speed, course and the flight safety event of aircraft Number.Answering machine 10 sends the performance number of signal for the anti-interference of signal and is accurately parsed extremely important, and therefore, detection should The accuracy for answering the performance number that machine 10 sends signal is most important.

Generally, the power of signal can be determined by the voltage value or current value of measuring signal, still, works as signal Frequency higher (such as close to 1GHz) when, curtage changes along the change in location of lossless transmission line, but the work(of signal Rate is constant.In the embodiment of the present application, the high-frequency signal that is sent answering machine by power probe 20, which is converted to, can determine The electric signal of performance number.Wherein, power probe 20 can be thermosensitive resistance type power probe, thermocouple type power probe, detection In diode-type power probe, fluid load power probe, Hull effect semi-conductor type power probe, electronics note type power probe Any one, in the embodiment of the present application not limit.

The signal that measuring receiver 30 is converted into according to power probe determines the performance number of answering machine output signal.

Fig. 2 is the flow diagram of detection method provided by the embodiments of the present application, which includes the following steps:

Step 401:Answering machine obtains the predeterminated frequency value of signal and predetermined power value;

Step 402:Based on predeterminated frequency value and predetermined power value, answering machine sends work(by output terminal to power probe Rate level signal;

Step 403:Power level signal conversion is characterized electric signal by power probe by conversion circuit, and feature is electric Signal is sent to measuring receiver;

Step 404:Measuring receiver determines the performance number of power level signal according to feature electric signal, and by the work(of acquisition Rate value is compared with predetermined power value.

Specifically, in step 401, answering machine determines the predetermined power value and predeterminated frequency value of signal to be output first, Wherein, predetermined power value and predeterminated frequency value can be manually entered by user, and answering machine detects user by input unit The numerical value being manually entered determines predetermined power value and predeterminated frequency value.

Predetermined power value and predeterminated frequency value can also be generated by answering machine according to algorithm (or pre-set programs), for example, Answering machine determines that predeterminated frequency value is 1GHz first, and predetermined power value is 0dBm, wherein, dBm units are represented compared with 1 milliwatt Decibels, 1W=30dBm.After testing one or more groups of data, keep frequency value is constant, will be adjusted under predetermined power value- 3dBm is tested after data, will be adjusted to -6dBm under predetermined power value, until predetermined power value is -60dBm.Then, change Predeterminated frequency value is 1.5GHz, and predetermined power value is recovered to 0dBm, and after testing data, keep frequency value is constant, lowers Performance number continues to test, and so on, respectively the corresponding data of multiple predetermined power values are tested in each Frequency point.

In step 402, the output circuit of answering machine will generate signal according to predeterminated frequency value and predetermined power value, and lead to Cross the signal of output terminal output generation.If the precision of answering machine is high, the performance number of answering machine output signal will be similar to (or Be in close proximity to) predetermined power value, whereas if the precision of answering machine is poor, the performance number of answering machine output signal will with it is pre- If performance number difference is larger.

In step 403, the power level signal conversion that answering machine exports is characterized telecommunications by the conversion circuit of power probe Number, wherein, the concrete form of feature electric signal is related to the concrete type of power probe, for example, power probe is thermistor During type power probe, the direct current that power level signal is converted to the resistance variations that can characterize power probe by power probe is believed Number.In another example when power probe is thermocouple type power probe, power level signal is converted to and can characterized by power probe The direct current signal for the thermoelectric force that thermocouple generates.For another example when power probe is crystal detection formula power probe, power is visited Power level signal is converted to low frequency or DC signal by head, wherein, power probe be converted to the amplitude proportional of signal in The performance number of power level signal.

In step 404, measuring receiver includes signal amplification circuit, signal conversion circuit, can be defeated according to power probe The feature electric signal gone out determines performance number, and passes through output unit output power value, and output unit can be display, also may be used Think voice-output unit.

Then, compared with the predetermined power value when performance number of acquisition and answering machine are exported signal by measuring receiver, It would know that the precision of answering machine.It, can be in each test parameter (one group of predeterminated frequency value and predetermined power in actual conditions Value) at more test several performance numbers, take its average value as measured power value.

In the embodiment of the present application, the output signal of answering machine is switched to by measuring receiver by power probe and is capable of determining that The characteristic signal of performance number, so that measuring receiver feature based electric signal determines the actual power value of output signal, And compared with exporting the predetermined power value of signal, intuitively to know the precision of answering machine output signal.

Optionally, in the embodiment of the present application, before step 402, following steps are further included:

The power level that measuring receiver receives signal generator transmission is 0dBm, the work that frequency values are predeterminated frequency value Signal.

In actual conditions, 0dBm may be not achieved in the power of the output signal of answering machine, in this case, in order to ensure Measuring receiver detects the accuracy of performance number, and before a Frequency point is tested, it is 0dBm to provide power for measuring receiver Working signal.In the embodiment of the present application, power identical with predeterminated frequency value is provided for measuring receiver by signal generator Be worth the working signal for 0dBm so that measuring receiver can steady operation, ensure the standard of measured power value determined Exactness.

Optionally, in the embodiment of the present application, measuring receiver receive signal generator send power level for 0dBm, Before frequency values is the working signals of predeterminated frequency value, following steps are further included:

When measuring receiver is connected with power probe, measuring receiver carries out self calibration according to calibration circuit.

Specifically, measuring receiver calibrates measuring receiver by calibrating circuit when connecting power probe, protect Demonstrate,prove the accuracy of the performance number of test.

Optionally, in the embodiment of the present application, the output terminal of answering machine is antenna output end.In step 402:Based on default frequency Rate value and predetermined power value, answering machine before power probe transmission power level signal, are further included as follows by output terminal Step:

Operating mode is switched to antenna carrier operating mode by answering machine.

Specifically, the operating mode of answering machine is switched to antenna carrier operating mode, exported by antenna output end high Frequency power level signal, and then the power essence of antenna end output signal can be detected by power probe and measuring receiver Degree.

Optionally, in the embodiment of the present application, the output terminal of answering machine is RF output end.In step 402:Based on default frequency Rate value and predetermined power value, by output terminal before power probe transmission power level signal, also bag is following walks answering machine Suddenly:

Operating mode is switched to radio-frequency carrier operating mode by answering machine.

Specifically, the operating mode of answering machine is switched to radio-frequency carrier operating mode, exported by RF output end high Frequency power level signal, and then the power essence of radio-frequency head output signal can be detected by power probe and measuring receiver Degree.

In the technical solution of the above-mentioned detection output signal power precision of the embodiment of the present application, ensureing power probe and survey In the case of the operating accuracy for measuring receiver, the error of the performance number of test is only in the range of 0.2dB.

On the other hand, the embodiment of the present application also provides a kind of detection side for the pulse characteristic for detecting answering machine output signal Method, Fig. 3 are the schematic diagram of the test system of test pulse characteristic.

Wherein, the signal that answering machine 10 exports carries a low frequency signal for a high-frequency signal, exports the ripple bag of signal As base band low frequency signal.

Wave detector 50 receives the output signal of answering machine 10, and passes through demodulator circuit and filter circuit from output signal Base band low frequency signal is demodulated, is pulse signal.

The pulse signal that oscillograph 60 can be exported according to wave detector obtains the pulse parameter of signal.

Fig. 4 is the flow diagram of the method for detection pulse signal precision, is included the following steps:

Step 701:Answering machine obtains the predetermined pulse parameter of signal;

Step 702:Based on predetermined pulse parameter, answering machine sends output signal by output terminal to wave detector;

Step 703:By detecting circuit, the demodulation from output signal filters out pulse signal to wave detector, and by pulse signal It is sent to oscillograph;

Step 704:Oscillograph determines the pulse parameter of pulse signal, and by the pulse parameter determined and predetermined pulse Parameter is compared.

Specifically, in step 701, answering machine determines the predetermined pulse parameter of signal to be output first, wherein, predetermined pulse Parameter can be manually entered by user, and answering machine detects that the numerical value that user is manually entered determines predetermined pulse by input unit Parameter.Predetermined pulse parameter can also be automatically generated by answering machine according to the algorithm to prestore, and the embodiment of the present application not limits.

In step 702, the output circuit of answering machine will generate signal according to predetermined pulse parameter, and be exported by output terminal The signal of generation.If the precision of answering machine is high, the pulse parameter of answering machine output signal will be similar to (or very close In) predetermined pulse parameter, whereas if the precision of answering machine is poor, the pulse parameter of answering machine output signal will be with default arteries and veins It is larger to rush parameter difference.

In step 703, wave detector demodulates low according to demodulator circuit and filter circuit from the output signal of answering machine Frequency pulse signal.

In step 704, oscillograph determines the pulse parameter of low frequency pulse signal, and it and predetermined pulse parameter are carried out Compare.

In actual conditions, oscillograph can also by display unit simultaneously the corresponding pulse signal of predetermined pulse parameter and The pulse signal of wave detector output, and then the operating accuracy directly perceived for checking out answering machine.

In the embodiment of the present application, low frequency pulse signal is demodulated from the output signal of answering machine by wave detector, and is led to The pulse parameter that oscillograph determines pulse signal is crossed, and compared with exporting the predetermined pulse parameter of signal, intuitively to obtain Know the precision of the pulse signal of answering machine output signal.

Optionally, in the embodiment of the present application, in step 702:Based on predetermined pulse parameter, answering machine is by output terminal to inspection Before ripple device sends output signal, following steps are further included:

Operating mode is switched to answering machine XPDR patterns by answering machine.

Specifically, answering machine XPDR patterns are to export the operating mode of antenna impulse signal, by the Working mould of answering machine Formula switches to XPDR patterns, by antenna output end output pulse signal, and then can be detected by wave detector and oscillograph To the precision of the pulse parameter of antenna end output signal.

Optionally, in the embodiment of the present application, in step 703:Wave detector is demodulated from output signal by detecting circuit Pulse signal is filtered out, and before pulse signal is sent to oscillograph, further includes following steps:

The impedance for the input terminal being connected with wave detector is arranged to 50 Ω by oscillograph.

Optionally, in the embodiment of the present application, predetermined pulse parameter includes:Pulse spacing, pulse width, the rise time, under At least one in time, phase transitions time drops.

The one or more technical solutions provided in the embodiment of the present application, have at least the following technical effects or advantages:

In the embodiment of the present application, the output signal of answering machine is switched to by measuring receiver by power probe and is capable of determining that The characteristic signal of performance number, so that measuring receiver feature based electric signal determines the actual power value of output signal, And compared with exporting the predetermined power value of signal, intuitively to know the precision of answering machine output signal.

It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program Product.Therefore, the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware can be used in the present invention Apply the form of example.Moreover, the computer for wherein including computer usable program code in one or more can be used in the present invention The computer program production that usable storage medium is implemented on (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) The form of product.

The present invention is with reference to the flow according to the method for the embodiment of the present application, equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.

These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or The function of being specified in multiple boxes.

Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent It selects embodiment and falls into all change and modification of the scope of the invention.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these modification and variations.

Claims (9)

1. a kind of detection method, which is characterized in that including:
Answering machine obtains the predeterminated frequency value of signal and predetermined power value;
Based on the predeterminated frequency value and the predetermined power value, the answering machine sends work(by output terminal to power probe Rate level signal;
Power level signal conversion is characterized electric signal by the power probe by conversion circuit, and the feature is electric Signal is sent to measuring receiver;
Measuring receiver determines the performance number of the power level signal according to the feature electric signal, and by the work(of acquisition Rate value is compared with the predetermined power value.
2. the method as described in claim 1, which is characterized in that work(is sent to power probe by output terminal in the answering machine Before rate level signal, further include:
The power level that the measuring receiver receives signal generator transmission is 0dBm, frequency values are the predeterminated frequency value Working signal.
3. method as claimed in claim 2, which is characterized in that receive the work(of signal generator transmission in the measuring receiver Before the working signal that rate level is 0dBm, frequency values are the predeterminated frequency value, further include:
When the measuring receiver is connected with the power probe, the measuring receiver carries out self-correcting according to calibration circuit It is accurate.
4. method as described in any one of claims 1 to 3, which is characterized in that the output terminal of the answering machine exports for antenna End;
The answering machine by output terminal before power probe transmission power level signal, further include:
Operating mode is switched to antenna carrier operating mode by the answering machine.
5. method as described in any one of claims 1 to 3, which is characterized in that the output terminal of the answering machine exports for radio frequency End;
The answering machine by output terminal before power probe transmission power level signal, further include:
Operating mode is switched to radio-frequency carrier operating mode by the answering machine.
6. a kind of detection method, which is characterized in that including:
Answering machine obtains the predetermined pulse parameter of signal;
Based on the predetermined pulse parameter, the answering machine sends output signal by output terminal to wave detector;
By detecting circuit, the demodulation from the output signal filters out pulse signal to the wave detector, and by the pulse signal It is sent to oscillograph;
Oscillograph determines the pulse parameter of the pulse signal, and by the pulse parameter determined and the predetermined pulse Parameter is compared.
7. method as claimed in claim 6, which is characterized in that output signal is sent to wave detector by output terminal in answering machine Before, further include:
Operating mode is switched to answering machine XPDR patterns by the answering machine.
8. the method for claim 7, which is characterized in that the pulse signal is sent to oscillograph in the wave detector Before, further include:
The impedance for the input terminal being connected with the wave detector is arranged to 50 Ω by the oscillograph.
9. such as claim 6 to 8 any one of them method, which is characterized in that the predetermined pulse parameter includes:Between pulse Every in, pulse width, rise time, fall time, phase transitions time at least one of.
CN201510884384.2A 2015-12-03 2015-12-03 A kind of detection method CN105553580B (en)

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CN106546845A (en) * 2016-10-18 2017-03-29 四川九洲电器集团有限责任公司 A kind of method of testing and test system of test transmitter unit

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Publication number Priority date Publication date Assignee Title
CN101439724A (en) * 2008-12-31 2009-05-27 中国铁道科学研究院通信信号研究所;北京市华铁信息技术开发总公司 Ground electronic apparatus
CN102082580A (en) * 2009-11-27 2011-06-01 西安费斯达自动化工程有限公司 Method for automatically transceiving signals for integrated TCAS (traffic collision avoidance system)

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JP2006325191A (en) * 2005-04-22 2006-11-30 Matsushita Electric Ind Co Ltd Communication apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101439724A (en) * 2008-12-31 2009-05-27 中国铁道科学研究院通信信号研究所;北京市华铁信息技术开发总公司 Ground electronic apparatus
CN102082580A (en) * 2009-11-27 2011-06-01 西安费斯达自动化工程有限公司 Method for automatically transceiving signals for integrated TCAS (traffic collision avoidance system)

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