CN105610522B - A kind of Big Dipper general radio frequency module detecting system and method - Google Patents
A kind of Big Dipper general radio frequency module detecting system and method Download PDFInfo
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- CN105610522B CN105610522B CN201510915106.9A CN201510915106A CN105610522B CN 105610522 B CN105610522 B CN 105610522B CN 201510915106 A CN201510915106 A CN 201510915106A CN 105610522 B CN105610522 B CN 105610522B
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Abstract
The invention discloses a kind of Big Dipper general radio frequency module detecting system and method, the detecting system includes the adjustable radiofrequency signal distribution link of RF signal collection playback apparatus, attenuation coefficient, PC main control computers, radio frequency testing carrier, signal measurement module, interference signal generator；The detecting system broadcasts test signal and interference signal by PC computer software control RF signal collection playback apparatus and interference signal generator, distributes link by radiofrequency signal and accesses each test point position on radio frequency testing carrier；PC computer softwares are also emitted by the way that radio frequency testing screens is controlled to read signal measurement result and radio frequency is driven to open power amplifier interface, then by reading the channel power and frequency of signal measurement module, to complete to measure.It is complicated for operation the present invention overcomes conventional radio frequency detection scheme efficiency is low, the problem of environmental structure is cumbersome, simple and quick test is realized, is suitable for large-scale product equipment detection and part scientific research test.
Description
Technical field
The present invention relates to satellite communication positioning field, particularly a kind of Big Dipper general radio frequency module detecting system and method.
Background technology
Beidou satellite navigation system is the global navigation satellite and communication system of China's independent development, with the system service
Formal enabling, Beidou user terminal device（Beidou subscriber machine）Also the critical period of commercial application has been entered, to north
It struggles against during the research and production of subscriber computer, radio-frequency module directly influences complete machine as indispensable Primary Component, performance
Performance And Reliability, to examine the basic performance indicator of Big Dipper general radio frequency module, it usually needs in the ring that it is installed and used
It is carried out in border, needs to introduce necessary test signal and interference signal.
At present, during atual detection, it is usually mounted to carry out the test of complete machine after complete machine again or be answered by separate unit
Miscellaneous tooling carries out manual test, first method, because being tested again after complicated assembling process, when discovery radio frequency
Too many working hour is wasted when not up to standard, quality cost is excessively high；Second way build process is cumbersome, inconvenient, profession
Property it is very high, so for scale production or part trial-production equipment for, traditional detection method versatility is not high.
Invention content
The technical problem to be solved in the invention is to provide a kind of detecting system and method for Big Dipper general radio frequency module, with
Reduce Big Dipper general radio frequency module testing limitation, complexity and cost input.
In order to solve the above technical problems, the technical solution used in the present invention is as follows, including RF acquisition playback apparatus, interference
Signal generator, signal measurement module, radiofrequency signal distribution link, radio frequency testing carrier, PC main control computers；
The RF acquisition playback apparatus, interference signal generator, signal measurement module by radiofrequency signal distribute link with
Radio frequency testing carrier connects；
The RF acquisition playback apparatus tests Big Dipper signal for playing and exporting；
The interference signal generator uses radio-frequency signal generator, for generating frequency point narrow-band interference signal, for examining
Survey tolerance of the radio-frequency module to narrowband jamming power signal；
The signal measurement module is used for power and frequency measurement to radio frequency inbound transmitting signal；
The radiofrequency signal distribution link is used to that test signal will to be exported and interference signal is assigned to radio frequency testing carrier
Each test point position；The L frequency point signal input signals measurement module of radio-frequency transmissions is completed into test simultaneously；
The radio frequency that the radio frequency testing carrier is mainly used for each test point position places platform；
The RF acquisition playback apparatus, interference signal generator, signal measurement module and radio frequency testing carrier respectively with PC
Main control computer connects；The PC main control computers are mainly used for running entire testing system software.
The present invention includes the following steps：
Radio-frequency module is packed into each test point position by step A., and complete signal connection after, open test system and test function；
Step B. test softwares driving RF acquisition playback apparatus broadcasts S/B1/B3 frequency point test signals successively, reads each survey
Received signal level carrier-to-noise ratio test data on pilot position, whether assessment radio-frequency module receptivity is up to standard, if meeting setting
Condition, then radio-frequency module receptivity is up to standard；
It is narrow that step C. testing system softwares drive interference signal generator according to the level set to broadcast S/B1/B3 frequency points
Band interference signal, reads the received signal level situation of change of each test point position, and whether assessment jamming power tolerance meets setting
It is required that；
Radio-frequency module on step D. test softwares driving test point a is opened power amplifier and is emitted, and reads signal measurement mould
On block L frequency points signal band internal power and, to assess whether to meet setting transmitting EIRP indexs, while signal detection peak value frequency,
To assess whether radio-frequency transmissions frequency deviation meets the requirements；
Step F. repeat step D, be sequentially completed test point b, test point c, test point d ... the transmitting EIRP of test point N
Index and transmitting frequency deviation index, to assess whether the emitting performance of radio frequency meets the requirements；
Step G. detecting systems software prints out each index test data and benchmarking as a result, simultaneously storage test automatically
Data and final result, convenient for tracing and consulting.
The radiofrequency signal distribution link includes mechanical adjustable attenuator, one-to-two power splitter, one point of N power splitter, 10W
Nominal attenuation device, the cable of various pad values, radio frequency connector and shell form and receive signal testing channel and transmitting signal
Measurement channel；
The reception signal testing channel includes, the mechanical adjustable attenuator being connected with RF acquisition playback apparatus, then
One point of N power splitter of the corresponding frequency point of access, is assigned to N number of test point position, so will be acquired by combiner before test point position
Playback apparatus broadcasts the narrow-band interference signal of S/B1/B3 frequency points test signal and signal generator output branch and transmitting terminal declines
L frequency points signal combining after subtracting, to enter corresponding radio-frequency module receiving port；
The transmitting signal measurement channel includes, and the L frequency points signal in each test point position is defeated from radio-frequency module connector
One point of N power splitter is accessed after going out, the first via is then combined entering signal measurement module together with the signal of other test point positions
Test port, transmission power is excessive in order to prevent burns out signal measurement module, and the high-power attenuation of a 10W is accessed in front end
Device；Second tunnel enters radio frequency S ports with the combining of S frequency points signal, to provide the L frequency point signals needed for the test of S frequency points transceiver insulation,
Centre adds in attenuator adjustment link load, and L frequency point signal strengths is made to meet transceiver insulation test intensity requirement；Third Lu Yuxin
Number combining after enter radio-frequency module port, with provide frequency point transceiver insulation test needed for L frequency point signals, centre add in attenuation
Device adjusts link load, and L frequency point signal strengths is made to meet transceiver insulation test intensity requirement.
As a result of above technical scheme, the invention technological progress is as follows.
It is complicated for operation the present invention overcomes conventional radio frequency detection scheme efficiency is low, it the problem of environmental structure is cumbersome, realizes
The purpose of simple and quick test is suitable for large-scale product equipment detection and part scientific research test.The present invention is to tested north
When the general radio frequency module that struggles against carries out performance detection, measurement data is compared with the standard index set, with assessment performance
Situation up to standard, automation output test data and judging result, and intuitively can show and consult；The link load of system
Scaling method is simple, and the loss measurement of radiofrequency signal distribution link is completed by signal generator and signal measurement module, with reference to
The transmitting-receiving index of radio frequency standard and acquisition playback apparatus output signal level, it may be convenient to set out the judgement mark of parameters
Standard, including receiving level carrier-to-noise ratio, transceiver insulation value, jamming power tolerance, transmitting EIRP and the standard for emitting the parameters such as frequency deviation
Value.
Detecting system of the present invention has the advantages that occupy little space, builds and is simple and convenient to operate, without additionally setting
The standby performance indicator that can qualitatively detect Big Dipper general radio frequency module, is greatly saved test while testing requirement is met
Cost improves testing efficiency.
Description of the drawings
Fig. 1 is the structural principle block diagram of detecting system of the present invention；
Fig. 2 distributes link schematic diagram for radio frequency of the present invention（By taking three-channel parallel is tested as an example）；
Fig. 3 is radio frequency testing carrier schematic diagram of the present invention（By taking three-channel parallel is tested as an example）；
Fig. 4 is detection method flow chart of the present invention.
Specific embodiment
Below in conjunction with attached drawing 1 to 4 and specific embodiment, the present invention will be described in further detail.
Big Dipper general radio frequency module detecting system, structure diagram is as shown in Figure 1, including RF acquisition playback apparatus 1, interference
Signal generator 2, signal measurement module 3, radiofrequency signal distribution link 4, radio frequency testing carrier 5, PC main control computers 6；It is described
Interference signal generator 2, signal measurement module 3 are by taking general Agilent product as an example.
The RF acquisition playback apparatus 1, interference signal generator 2, signal measurement module 3 distribute link by radiofrequency signal
4 connect with radio frequency testing carrier 5；
The RF acquisition playback apparatus 1 tests Big Dipper signal for playing and exporting；RF acquisition playback apparatus 1 and PC master controls
Computer 6 and radiofrequency signal distribution link 4 are connected, and each frequency point radiofrequency signal of the Big Dipper that is mainly used for having acquired and store is broadcast
Hair passes through the control of 6 remote software of PC main control computers during detection and exports each frequency point radiofrequency signal.
The interference signal generator 2 uses radio-frequency signal generator, for generating frequency point narrow-band interference signal, for examining
Survey tolerance of the radio-frequency module to narrowband jamming power signal；
The signal measurement module 3 is used for power and frequency measurement to radio frequency inbound transmitting signal；
The radiofrequency signal distribution link 4 is used to that test signal will to be exported and interference signal is assigned to radio frequency testing carrier 5
On each test point position；Simultaneously the L frequency point signal input signals measurement module 3 of radio-frequency transmissions is completed to test；Radiofrequency signal point
It is then mainly required with link 4 according to parallel detection, test signal is assigned to each test point position on radio frequency testing carrier 5,
Support multidiameter delay test.
The radio frequency that the radio frequency testing carrier 5 is mainly used for each test point position places platform；
The RF acquisition playback apparatus 1, interference signal generator 2, signal measurement module 3 and radio frequency testing carrier 5 are distinguished
It is connect with PC main control computers 6；The PC main control computers 6 are mainly used for running entire testing system software.
The present invention includes the following steps：
Radio-frequency module is packed into each test point position by step A., and complete signal connection after, open test system and test function；
Step B. test softwares driving RF acquisition playback apparatus 1 broadcasts S/B1/B3 frequency point test signals successively, reads each survey
Received signal level carrier-to-noise ratio test data on pilot position, whether assessment radio-frequency module receptivity is up to standard, if meeting setting
Condition, then radio-frequency module receptivity is up to standard；
Step C. testing system softwares driving interference signal generator 2 broadcasts S/B1/B3 frequency points according to the level set
Narrow-band interference signal reads the received signal level situation of change of each test point position, and whether assessment jamming power tolerance, which meets, sets
Provisioning request；
Radio-frequency module on step D. test softwares driving test point a is opened power amplifier and is emitted, and reads signal measurement mould
On block 3 L frequency points signal band internal power and, to assess whether to meet setting transmitting EIRP indexs, while signal detection peak value frequency,
To assess whether radio-frequency transmissions frequency deviation meets the requirements；
Step F. repeat step D, be sequentially completed test point b, test point c, test point d ... the transmitting EIRP of test point N
Index and transmitting frequency deviation index, to assess whether the emitting performance of radio frequency meets the requirements；
Step G. detecting systems software prints out each index test data and benchmarking as a result, simultaneously storage test automatically
Data and final result, convenient for tracing and consulting.
Radiofrequency signal distribution link 4 includes mechanical adjustable attenuator, one-to-two power splitter, one point of N power splitter,
10W nominal attenuation devices, the cable of various pad values, radio frequency connector and shell form and receive signal testing channel and transmitting
Signal measurement channel；This example is illustrated with a three-channel parallel test for example, as shown in Figure 2,3, receives signal testing channel：Institute
It states mechanical adjustable attenuator with RF acquisition playback apparatus 1 to be connected, then accesses one point of three power splitter of corresponding frequency point, be assigned to
Three test point positions, so acquisition playback apparatus 1 is broadcast S/B1/B3 frequency point test signals by combiner before test point position
It is combined with the L frequency points signal after the narrow-band interference signal of signal generator output branch and transmitting terminal attenuation, is corresponded to entering
Radio-frequency module receiving port.Emit signal measurement channel：Each test point position L frequency points signal from radio-frequency module connector
One point of three power splitter is accessed after output, then the first via together with the signal of other test point positions is combined to entering signal measure mould
3 test port of block, transmission power is excessive in order to prevent burns out signal measurement module 3, accesses the high-power of 10W in front end and declines
Subtract device；Second tunnel enters radio frequency S ports with the combining of S frequency points signal, is believed with providing the L frequency points needed for the test of S frequency points transceiver insulation
Number, centre adds in attenuator adjustment link load, and L frequency point signal strengths is made to meet transceiver insulation test intensity requirement；Third road
Enter the B3/B1 ports of radio-frequency module after being combined with B3/B1 signals, to provide the L frequencies needed for the test of B3/B1 frequency points transceiver insulation
Point signal, centre add in attenuator adjustment link load, and L frequency point signal strengths is made to meet transceiver insulation test intensity requirement.
Frequency point test signal described in step B, C includes B1, B3, S；
The B1 is Beidou satellite navigation system RNSS receives frequencies 1561.098MHz ± 2.046MHz；
The B3 is Beidou satellite navigation system 1268.52 MHz of RNSS receives frequencies ± 10.23MHz；
The S is Beidou satellite navigation system RDSS receives frequency 2491.75MHz MHz ± 4.08MHz；
The L is Beidou satellite navigation system RDSS tranmitting frequencies 1615.68MHz ± 4.08MHz.
Complete the frequency points radiofrequency signal down coversions such as dipper system downlink frequency point S, B1, B3 that Anneta module exports in subscriber computer
Subscriber computer base band is output to intermediate-freuqncy signal, while supports the L frequency point pulse intermediate frequencies for completing baseband modulation using power amplifier module
Signal up-converts to radiofrequency signal and is output to antenna end.Examination and inspection RF module performance are in addition to directly exporting intermediate-freuqncy signal
Outside measuring, its power and Frequency Index can also be examined by way of receiver performance, including emitting performance（EIRP, frequency deviation,
Transceiver insulation performance）, receptivity（Receive signal carrier-to-noise ratio）.
Embodiment described above only expresses one embodiment of the present invention, and description is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (3)
1. a kind of Big Dipper general radio frequency module detection method, including RF acquisition playback apparatus（1）, interference signal generator（2）, letter
Number measurement module（3）, radiofrequency signal distribution link（4）, radio frequency testing carrier（5）, PC main control computers（6）；It is characterized in that
Include the following steps：
Radio-frequency module is packed into each test point position by step A., and complete signal connection after, open test system and test function；
Step B. test softwares drive RF acquisition playback apparatus（1）S/B1/B3 frequency point test signals are broadcast, read each test point position
On received signal level carrier-to-noise ratio test data, assessment radio-frequency module receptivity it is whether up to standard, if meeting setting condition,
Radio-frequency module receptivity is up to standard；
Step C. testing system softwares drive interference signal generator（2）S/B1/B3 frequencies are broadcast successively according to the level set
Point narrow-band interference signal, reads the received signal level situation of change of each test point position, and whether assessment jamming power tolerance meets
Sets requirement；
Radio-frequency module on step D. test softwares driving test point a is opened power amplifier and is emitted, and reads signal measurement module（3）
Upper L frequency points signal band internal power and, to assess whether to meet setting transmitting EIRP indexs, while signal detection peak value frequency, with
Whether assessment radio-frequency transmissions frequency deviation meets the requirements；
Step F. repeat step D, be sequentially completed test point b, test point c, test point d ... the transmitting EIRP indexs of test point N
With transmitting frequency deviation index, to assess whether the emitting performance of radio frequency meets the requirements；
Step G. detecting systems software prints out each index test data and benchmarking as a result, simultaneously storing test data automatically
And final result, convenient for tracing and consulting；
The radiofrequency signal distributes link（4）Including mechanical adjustable attenuator, one-to-two power splitter, one point of N power splitter, 10W
Nominal attenuation device, the cable of various pad values, radio frequency connector and shell form and receive signal testing channel and transmitting signal
Measurement channel；
The reception signal testing channel includes, with RF acquisition playback apparatus（1）Connected mechanical adjustable attenuator, Ran Houjie
Enter one point of N power splitter of corresponding frequency point, be assigned to N number of test point position, since it is desired that the jamming power tolerance of testing RF module
With transceiver insulation value, so before test point position playback apparatus will be acquired by combiner（1）Broadcast S/B1/B3 frequency points test letter
Number with signal generator output branch narrow-band interference signal and transmitting terminal attenuation after L frequency points signal be combined, with enter pair
The radio-frequency module receiving port answered；
It is described transmitting signal measurement channel include, each test point position L frequency points signal from radio-frequency module connector output after
One point of N power splitter is accessed, the first via is then combined entering signal measurement module together with the signal of other test point positions（3）It surveys
Port is tried, transmission power is excessive in order to prevent burns out signal measurement module（3）, the high-power attenuation of a 10W is accessed in front end
Device；Second tunnel enters radio frequency S ports with the combining of S frequency points signal, to provide the L frequency point signals needed for the test of S frequency points transceiver insulation,
Centre adds in attenuator adjustment link load, and L frequency point signal strengths is made to meet transceiver insulation test intensity requirement；Third Lu Yuxin
Number combining after enter radio-frequency module port, with provide frequency point transceiver insulation test needed for L frequency point signals, centre add in attenuation
Device adjusts link load, and L frequency point signal strengths is made to meet transceiver insulation test intensity requirement.
2. a kind of Big Dipper general radio frequency module detection method according to claim 1, it is characterised in that：
Step B, the frequency point test signal in C, D includes B1, B3, S, L；
The B1 is Beidou satellite navigation system RNSS receives frequencies 1561.098MHz ± 2.046MHz；
The B3 is Beidou satellite navigation system 1268.52 MHz of RNSS receives frequencies ± 10.23MHz；
The S is Beidou satellite navigation system RDSS receives frequency 2491.75MHz MHz ± 4.08MHz；
The L is Beidou satellite navigation system RDSS tranmitting frequencies 1615.68MHz ± 4.08MHz.
3. a kind of Big Dipper general radio frequency module detection method according to claim 1, it is characterised in that further include following system
System：The RF acquisition playback apparatus（1）, interference signal generator（2）, signal measurement module（3）Pass through radiofrequency signal distribution chain
Road（4）With radio frequency testing carrier（5）Connection；
The RF acquisition playback apparatus（1）For playing and exporting test Big Dipper signal；
The interference signal generator（2）Using radio-frequency signal generator, for generating frequency point narrow-band interference signal, for detecting
Radio-frequency module is to the tolerance of narrowband jamming power signal；The radio frequency for supporting modulated signal output may be used in radio-frequency signal generator
Signal source or radio frequency analog modulated signal generation module；
The signal measurement module（3）For the power to radio frequency inbound transmitting signal and frequency measurement；Signal measurement module is adopted
With general frequency spectrograph, power meter, frequency meter equipment, and design power, the analog signal measurement module of frequency measurement；
The radiofrequency signal distributes link（4）Radio frequency testing carrier is assigned to for test signal and interference signal will to be exported（5）
Each test point position；Simultaneously by the L frequency point signal input signal measurement modules of radio-frequency transmissions（3）Complete test；
The radio frequency testing carrier（5）The radio frequency for being mainly used for each test point position places platform；
The RF acquisition playback apparatus（1）, interference signal generator（2）, signal measurement module（3）With radio frequency testing carrier（5）
Respectively with PC main control computers（6）Connection；The PC main control computers（6）It is mainly used for running entire testing system software.
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| CN106953679A (en) * | 2016-01-06 | 2017-07-14 | 北京九天利建信息技术股份有限公司 | A kind of vehicle-mounted Big Dipper short message satellite-signal communicator |
| CN107831509A (en) * | 2017-11-07 | 2018-03-23 | 上海同耀通信技术有限公司 | A kind of detecting system of interference free performance |
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| CN109059965A (en) * | 2018-10-11 | 2018-12-21 | 上海华测导航技术股份有限公司 | A kind of detection system and method for navigation equipment |
| CN110514929A (en) * | 2019-08-22 | 2019-11-29 | 上海无线电设备研究所 | A kind of radio frequency component general automation test macro |
| CN110764118B (en) * | 2019-12-30 | 2020-05-12 | 湖南卫导信息科技有限公司 | Calibration and calibration method and device for RDSS user machine test system |
| CN111682910B (en) * | 2020-04-15 | 2022-04-12 | 广州杰赛科技股份有限公司 | Radio frequency performance testing device and method for 5G millimeter wave base station |
| TWI745982B (en) * | 2020-05-27 | 2021-11-11 | 矽品精密工業股份有限公司 | Test system and method thereof |
| CN111817795A (en) * | 2020-06-18 | 2020-10-23 | 广东拓思软件科学园有限公司 | Beidou radio frequency baseband product testing device |
| CN113376505B (en) * | 2021-05-12 | 2022-06-21 | 中电科思仪科技股份有限公司 | Detection circuit and method suitable for rapid screening of electrical performance of microwave integrated circuit |
| CN115967454A (en) * | 2022-12-19 | 2023-04-14 | 格睿通智能科技（深圳）有限公司 | Wireless communication module inspection method and system for improving inspection efficiency |
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