CN103929257A - Radar dynamic frequency selection test system - Google Patents
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- CN103929257A CN103929257A CN201410173254.3A CN201410173254A CN103929257A CN 103929257 A CN103929257 A CN 103929257A CN 201410173254 A CN201410173254 A CN 201410173254A CN 103929257 A CN103929257 A CN 103929257A
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Abstract
The invention discloses a radar dynamic frequency selection test system. The radar dynamic frequency selection test system is composed of a single-channel function and arbitrary waveform generator, a double-channel function and arbitrary waveform generator, a radio-frequency signal generator, a radio-frequency spectrum analyzer, a control computer, a plurality of radio-frequency attenuators, power dividers and an auxiliary computer, wherein a GPIB controller and corresponding radar dynamic frequency selection test software are installed on the control computer. By the adoption of the radar dynamic frequency selection test system, the defects that an existing test system can not completely meet global standard test requirements, the prices of instruments capable of transmitting or analyzing radar signals are generally extremely high, and the testing efficiency is extremely low due to the fact that the instruments are not provided with software and operation is conducted only through operation interfaces of the instruments can be overcome.
Description
Technical field
The present invention relates to testing apparatus technical field, particularly a kind of radar dynamic frequency selection test macro.
Background technology
The test of radar dynamic frequency selection refers to the wireless device being operated in 5GHz frequency range, in the time meeting with the radar of same frequency range work, should be able to dynamically select or change the operating frequency of self, thus the radar signal of avoiding interference.Because 5.25～5.35 GHz and 5.47～5.725 GHz are working frequency range of global radar system, so the equipment in these frequency ranges all should be able to meet the requirement of radar dynamic frequency selection actively or passively.
Flourish along with wireless communication technology especially Wi-Fi technology, various wireless device is as emerged rapidly in large numbersBamboo shoots after a spring rain, pour into consumer market, because technology innovation is regenerated very quick, so the wireless device of market sale is countless, originally 2.4 main GHz ISM band become day by day crowded, equipment room disturbs also serious all the more, therefore, more the radio communication of high band becomes focus, various countries have also all opened the licensed band of exempting from of 5GHz successively simultaneously, but consider that wireless device is as noted earlier to the issuable interference of radar, each state has all formulated corresponding standard, the wireless device that mandatory requirement is operated in radar frequency band must have the function of radar dynamic frequency selection.These countries and regions include but not limited to North America, Europe, Canada, Australia, Japan, Korea S and China etc.Wherein promulgate " the Ministry of Industry and Information Technology is about the notice of issuing the relevant matters of 5150-5350 megahertz frequency range wireless access system frequency use " in China in the end of the year 2012 according to the Ministry of Industry and Information Technology, Ministry of Industry and Information is without No. [2012] 620, letter, propose the requirement that 5GHz radar frequency band needs DFS to test, formally implemented now.If 5GHz equipment can not be tested by radar dynamic frequency selection, can not sell on the market.
The Wireless Telecom Equipment that is operated in 5 ghz bands is mainly the Wi-Fi equipment such as 802.11a, 802.11n, 802.11ac.FCC has also issued memorandum FCC 06-96 specially, and the test of DFS has been carried out to detail specification, is in ETSI EN 301 893 standards, the test of DFS to be have been described in detail in European Union.Other national test request is all mainly followed the method for testing of these two countries and regions, but may in radar signal type, can define different parameters according to oneself requirement.DFS test event in FCC and etsi standard mainly contains:
(1) being uniformly distributed of working channel: require equipment under test to select equiprobably working channel at 5.25～2.35 GHz and 5.47～5.725 ghz bands.
(2) Radar Signal Detection bandwidth: from the centre frequency of equipment under test working channel, increase (or minimizing) radar signal frequency with 1 MHz step-length, observe the reaction of equipment under test, until equipment under test cannot detect radar signal, to obtain the frequency range of the radar signal that UUT can detect.
(3) initial channel availability detection time: equipment under test completes after start operation, should carry out detecting for 1 minute to work at present channel, observe the Channel Detection mechanism of equipment under test, equipment under test should just start to send radiofrequency signal after completing the Channel Detection of 1 minute.
(4) channel availability detects: equipment under test completes after start operation, to carry out detecting for 1 minute to work at present channel, this test item requires to send radar signal in the initial and last moment of 1 minute Channel Detection time at equipment under test working channel, due to the appearance of radar signal, equipment under test, after completing detection in 1 minute, should not send radiofrequency signal at this channel.
(5) the channel migration time: when equipment under test equipment associated with it carries out business transmission, send radar signal at equipment under test working channel, stop sending beginning timing from radar signal, equipment under test (if equipment under test is main equipment, comprising associated all from equipment) should stop at this channel and carry out business transmission in limiting time.
(6) channel stops the delivery time: when equipment under test equipment associated with it carries out business transmission, send radar signal at equipment under test working channel, from radar signal stops sending, the transmission time summation on this channel can not exceed limit value.
(7) channel can not take the cycle: equipment under test after radar signal, can not carry out at this channel the time limit value of business transmission in a certain Channel Detection.
(8) detection threshold statistic property test: send the radar signal of specifying at equipment under test working channel with the level value of regulation, this test need to repeat repeatedly under identical condition, to add up the probability of the radar signal that equipment under test can detect.
Further popularizing of further opening based on 5GHz frequency and associated wireless devices, radar dynamic frequency selection (DFS-Dynamic Frequency Selection) test will become a link very important in global product type is checked and approved test process, and that the frequency of utilization of relevant test macro also can become is very frequent.At present because domestic dependence test requires just ground zero, also do not have at home the radar dynamic frequency selection test macro of independent intellectual property right, go to meet growing product test demand, and test request will slowly refinement in following implementation process, augments; In addition because the wireless product of many 5GHz normally carries out domestic and export trade simultaneously, so conventionally all can carry out the test of radar dynamic frequency selection according to global standard-required, so it is flat to be starved of a set of low one-tenth, efficiently, flexibly, and can meet the test macro of global radar dynamic frequency selection standard-required.Current radar dynamic frequency selection testing equipment on the market, it is simple signal generator, be responsible for transmitting radar signal, it is the simple signal analysis on spectrum analyzer, or both are combined, but be only the standard-required for particular country, can not meet global standards test request.And the common price of instrument that can carry out radar signal or analysis is all very expensive, to add them and can not carry software, and be only to operate by the operation interface of instrument itself, this makes to test very poor efficiency.
Summary of the invention
Goal of the invention: the object of the invention is provides a kind of radar dynamic frequency selection test macro for the deficiencies in the prior art, by single channel function and AWG (Arbitrary Waveform Generator), binary channels function and AWG (Arbitrary Waveform Generator), radio-frequency signal generator, Spectrum Analyzer and GPIB controller is installed and the control computer of corresponding radar dynamic frequency selection testing software, additional some radio frequency attenuators, power splitter and auxiliary computer composition, just can avoid thus existing test macro can not meet global standards test request, the common price of instrument that can carry out radar signal or analysis is all very expensive, adding them can not carry software and be only to be operated and finally caused testing the very defect of poor efficiency by the operation interface of instrument itself.
Technical scheme: in order to realize goal of the invention, the invention discloses a kind of radar dynamic frequency selection test macro, comprise and control computer 1, control computer 1 inside with the test module based on Labview, the described test module based on Labview can carry out radar dynamic frequency selection, described control computer 1 inside is provided with GPIB controller 2, described GPIB controller 2 passes through GPIB line 3 respectively with single channel function and AWG (Arbitrary Waveform Generator) 4, binary channels function and AWG (Arbitrary Waveform Generator) 5, radio-frequency signal generator 6 and Spectrum Analyzer 8 are connected, described passage function is all connected with radio-frequency signal generator 6 with AWG (Arbitrary Waveform Generator) 5 with binary channels function with AWG (Arbitrary Waveform Generator) 4, described radio-frequency signal generator 6 is connected with the first radio frequency attenuator 9, the first radio frequency attenuator 9 is connected with the first power splitter 10, the first power splitter 10 is also connected with the second radio frequency attenuator 11 with Spectrum Analyzer 8, the second described radio frequency attenuator 11 is connected with the second power splitter 12, the second power splitter 12 is also connected with the 4th radio frequency attenuator 14 with the 3rd radio frequency attenuator 13, the 3rd radio frequency attenuator 13 is connected with the equipment being associated 15 that is operated in 5GHz frequency range, the 4th radio frequency attenuator 14 is connected with the equipment under test 16 that is operated in 5GHz frequency range, the equipment under test 16 that is operated in 5GHz frequency range is connected with auxiliary computer 17.
The described test module based on Labview comprises and can carry out equipment under test to carry out the intercepting of diagram curve, full automatic radar dynamic frequency selection on-line monitoring test and be operated in the response analysis of the equipment under test of 5GHz frequency range, can also carry out forbidding for 30 minutes measurement, the inspection of 60 second time, channel transfer time and the cumulative time measurement of the phase that takies, also there is in addition programming Control waveform generator and radio-frequency signal generator and support global radar dynamic frequency selection standard.
Single channel function and AWG (Arbitrary Waveform Generator) 4 and binary channels function and AWG (Arbitrary Waveform Generator) 5 are used for producing according to the radar waveform signal of the standard-required of various countries' radar dynamic frequency selection test from time domain, then the modulation input port that is sent to radio-frequency signal generator 6 is modulated, on frequency domain, simulate, thereby produce needed radar signal, the radar signal producing will be passed through the first radio frequency attenuator 9, the first power splitter 10, the second radio frequency attenuator 11, the second power splitter 12, the 3rd radio frequency attenuator 13 and the 4th radio frequency attenuator 14 arrive the equipment under test 16 that is operated in 5GHz frequency range, thereby the equipment under test 16 that is operated in 5GHz frequency range is disturbed, the radar signal producing and the equipment being associated that is operated in 5GHz frequency range 15 also can feed back to Spectrum Analyzer 8 by the first power splitter 10 and the second power splitter 12 with the work radiofrequency signal of the equipment under test 16 that is operated in 5GHz frequency range simultaneously, thereby whether monitoring radar signal amplitude is correct, and the equipment being associated 15 that is operated in 5GHz frequency range is measured the reaction of radar signal with the equipment under test 16 that is operated in 5GHz frequency range, finally analyze by the test module based on Labview, judge whether the reaction of equipment under test meets the requirement of regulation, then data drawing list is preserved.
Described single channel function and AWG (Arbitrary Waveform Generator) 4, binary channels function and AWG (Arbitrary Waveform Generator) 5, radio-frequency signal generator 6 and Spectrum Analyzer 8 have respectively corresponding GPIB address separately, can be controlled computer 1 and identify and control.
The output of described single channel function and AWG (Arbitrary Waveform Generator) 4 and binary channels function and AWG (Arbitrary Waveform Generator) 5 is connected to pulse or the FM modulation input port of radio-frequency signal generator 6 by the radio frequency line of BNC interface.
The output of described radio-frequency signal generator 6 and the input of Spectrum Analyzer 8 are connected to the first radio frequency attenuator 9 and the first power splitter 10 by radio frequency line respectively.
Beneficial effect: the present invention compared with prior art, testing hardware and software are become one, support multi-signal generator and frequency spectrograph, can carry out very neatly system configuration, support full-automatic test, compare other system and have very high flexibility and controllable cost performance, and this cover radar dynamic frequency selection test macro meets global testing standard requirement, thereby diversified testing requirement amount is provided and has improved product test efficiency and shortened time of product introduction whole world application.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, a kind of radar dynamic frequency selection test macro, comprise and control computer 1, control computer 1 inside with the test module based on Labview, the described test module based on Labview can carry out radar dynamic frequency selection, described control computer 1 inside is provided with GPIB controller 2, described GPIB controller 2 passes through GPIB line 3 respectively with single channel function and AWG (Arbitrary Waveform Generator) 4, binary channels function and AWG (Arbitrary Waveform Generator) 5, radio-frequency signal generator 6 and Spectrum Analyzer 8 are connected, described passage function is all connected with radio-frequency signal generator 6 with AWG (Arbitrary Waveform Generator) 5 with binary channels function with AWG (Arbitrary Waveform Generator) 4, described radio-frequency signal generator 6 is connected with the first radio frequency attenuator 9, the first radio frequency attenuator 9 is connected with the first power splitter 10, the first power splitter 10 is also connected with the second radio frequency attenuator 11 with Spectrum Analyzer 8, the second described radio frequency attenuator 11 is connected with the second power splitter 12, the second power splitter 12 is also connected with the 4th radio frequency attenuator 14 with the 3rd radio frequency attenuator 13, the 3rd radio frequency attenuator 13 is connected with the equipment being associated 15 that is operated in 5GHz frequency range, the 4th radio frequency attenuator 14 is connected with the equipment under test 16 that is operated in 5GHz frequency range, the equipment under test 16 that is operated in 5GHz frequency range is connected with auxiliary computer 17.The described test module based on Labview comprises and can carry out equipment under test to carry out the intercepting of diagram curve, full automatic radar dynamic frequency selection on-line monitoring test and be operated in the response analysis of the equipment under test of 5GHz frequency range, can also carry out forbidding for 30 minutes measurement, the inspection of 60 second time, channel transfer time and the cumulative time measurement of the phase that takies, also there is in addition programming Control waveform generator and radio-frequency signal generator and support global radar dynamic frequency selection standard.Because radar signal has different classes ofly, there are different time domains and frequency domain characteristic.Single channel function and AWG (Arbitrary Waveform Generator) 4 and binary channels function and AWG (Arbitrary Waveform Generator) 5 are used for producing according to the radar waveform signal of the standard-required of various countries' radar dynamic frequency selection test from time domain, then the modulation input port that is sent to radio-frequency signal generator 6 is modulated, on frequency domain, simulate, thereby produce needed radar signal, the radar signal producing will be passed through the first radio frequency attenuator 9, the first power splitter 10, the second radio frequency attenuator 11, the second power splitter 12, the 3rd radio frequency attenuator 13 and the 4th radio frequency attenuator 14 arrive the equipment under test 16 that is operated in 5GHz frequency range, thereby the equipment under test 16 that is operated in 5GHz frequency range is disturbed, the radar signal producing and the equipment being associated that is operated in 5GHz frequency range 15 also can feed back to Spectrum Analyzer 8 by the first power splitter 10 and the second power splitter 12 with the work radiofrequency signal of the equipment under test 16 that is operated in 5GHz frequency range simultaneously, thereby whether monitoring radar signal amplitude is correct, and the equipment being associated 15 that is operated in 5GHz frequency range is measured the reaction of radar signal with the equipment under test 16 that is operated in 5GHz frequency range, finally analyze by the test module based on Labview, judge whether the reaction of equipment under test meets the requirement of regulation, then data drawing list is preserved.Described single channel function and AWG (Arbitrary Waveform Generator) 4, binary channels function and AWG (Arbitrary Waveform Generator) 5, radio-frequency signal generator 6 and Spectrum Analyzer 8 have respectively corresponding GPIB address separately, can be controlled computer 1 and identify and control.The output of described single channel function and AWG (Arbitrary Waveform Generator) 4 and binary channels function and AWG (Arbitrary Waveform Generator) 5 is connected to pulse or the FM modulation input port of radio-frequency signal generator 6 by the radio frequency line of BNC interface.The output of described radio-frequency signal generator 6 and the input of Spectrum Analyzer 8 are connected to the first radio frequency attenuator 9 and the first power splitter 10 by radio frequency line respectively.
Below in conjunction with embodiment, the present invention is further described.
That single channel function of the present invention and AWG (Arbitrary Waveform Generator) 4 and binary channels function and AWG (Arbitrary Waveform Generator) 5 adopt respectively is the WW1072 of Agilent 33220A and Tabor electronics, what radio-frequency signal generator 6 adopted in addition is Agilent 8665B or other,, with pulse and FM modulation function, and can cover the radio-frequency signal generator of 6GHz rf frequency arbitrarily; That Spectrum Analyzer 8 adopts is Agilent EXA N9010A, or the FSIQ/FSQ/FSU of Luo De Schwarz company, ESIB series frequency spectrograph or receiver.This radar dynamic frequency selection test macro is also supported the Spectrum Analyzer 8 of other model, because this radar dynamic frequency selection test macro has reserved from software the function driving to user's self-developing, so user can be carried out self-developing and be added the driving of needed equipment by Labview, realizes like this flexibility of configuration.What GPIB controller adopted is the GPIB-USB-HS controller of national instrument company.The first radio frequency attenuator 9, the first power splitter 10, the second radio frequency attenuator 11, the second power splitter 12, the 3rd radio frequency attenuator 13 and the 4th radio frequency attenuator 14 are wanted in 5-6GHz, normally to work.
To the explanation of disclosed above-described embodiment, make those skilled in the art can realize or use the present invention, the those skilled in the art of amendment team to above-described embodiment are apparent, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention is not restricted to embodiment illustrated herein, but will meet the wide region consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a radar dynamic frequency selection test macro, it is characterized in that comprising control computer (1), control computer (1) inner with the test module based on Labview, the described test module based on Labview can carry out radar dynamic frequency selection, described control computer (1) inside is provided with GPIB controller (2), described GPIB controller (2) passes through GPIB line (3) respectively with single channel function and AWG (Arbitrary Waveform Generator) (4), binary channels function and AWG (Arbitrary Waveform Generator) (5), radio-frequency signal generator (6) and Spectrum Analyzer (8) are connected, described passage function and AWG (Arbitrary Waveform Generator) (4) and binary channels function and AWG (Arbitrary Waveform Generator) (5) all same radio-frequency signal generator (6) are connected, described radio-frequency signal generator (6) is connected with the first radio frequency attenuator (9), the first radio frequency attenuator (9) is connected with the first power splitter (10), the first power splitter (10) also same Spectrum Analyzer (8) is connected with the second radio frequency attenuator (11), described the second radio frequency attenuator (11) is connected with the second power splitter (12), the second power splitter (12) is also connected with the 4th radio frequency attenuator (14) with the 3rd radio frequency attenuator (13), the 3rd radio frequency attenuator (13) is connected with the equipment being associated (15) that is operated in 5GHz frequency range, the 4th radio frequency attenuator (14) is connected with the equipment under test (16) that is operated in 5GHz frequency range, the same auxiliary computer of equipment under test (16) (17) that is operated in 5GHz frequency range is connected.
2. radar dynamic frequency selection test macro according to claim 1, the test module based on Labview described in it is characterized in that comprises can carry out equipment under test to carry out the intercepting of diagram curve, the response analysis of the equipment under test of 5GHz frequency range is tested and is operated in full automatic radar dynamic frequency selection on-line monitoring, can also carry out forbidding for 30 minutes the measurement of the phase that takies, the inspection of 60 second time, channel transfer time and cumulative time measure, also there is in addition programming Control waveform generator and radio-frequency signal generator and support global radar dynamic frequency selection standard.
3. radar dynamic frequency selection test macro according to claim 1, it is characterized in that described single channel function and AWG (Arbitrary Waveform Generator) (4) and binary channels function and AWG (Arbitrary Waveform Generator) (5) are used for producing according to the radar waveform signal of the standard-required of various countries' radar dynamic frequency selection test from time domain, then the modulation input port that is sent to radio-frequency signal generator (6) is modulated, on frequency domain, simulate, thereby produce needed radar signal, the radar signal producing will be passed through the first radio frequency attenuator (9), the first power splitter (10), the second radio frequency attenuator (11), the second power splitter (12), the 3rd radio frequency attenuator (13) and the 4th radio frequency attenuator (14) arrive the equipment under test (16) that is operated in 5GHz frequency range, thereby the equipment under test (16) that is operated in 5GHz frequency range is disturbed, the work radiofrequency signal of the radar signal simultaneously producing and the equipment being associated (15) that is operated in 5GHz frequency range and the equipment under test (16) that is operated in 5GHz frequency range also can feed back to Spectrum Analyzer (8) by the first power splitter (10) and the second power splitter (12), thereby whether monitoring radar signal amplitude is correct, and the equipment under test (16) that is operated in the equipment being associated (15) of 5GHz frequency range and is operated in 5GHz frequency range is measured the reaction of radar signal, finally analyze by the test module based on Labview, judge whether the reaction of equipment under test meets the requirement of regulation, then data drawing list is preserved.
4. radar dynamic frequency selection test macro according to claim 1, it is characterized in that described single channel function and AWG (Arbitrary Waveform Generator) (4), binary channels function and AWG (Arbitrary Waveform Generator) (5), radio-frequency signal generator (6) and Spectrum Analyzer (8) have respectively corresponding GPIB address separately, can be controlled computer (1) and identify and control.
5. radar dynamic frequency selection test macro according to claim 1, is characterized in that the output of described single channel function and AWG (Arbitrary Waveform Generator) (4) and binary channels function and AWG (Arbitrary Waveform Generator) (5) is connected to pulse or the FM modulation input port of radio-frequency signal generator (6) by the radio frequency line of BNC interface.
6. radar dynamic frequency selection test macro according to claim 1, is characterized in that the described output of radio-frequency signal generator (6) and the input of Spectrum Analyzer (8) are connected to the first radio frequency attenuator (9) and the first power splitter (10) by radio frequency line respectively.
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| CN104569655A (en) * | 2014-12-10 | 2015-04-29 | 中国人民解放军63888部队 | Complex background electromagnetic signal simulator and complex background electromagnetic environment generating method |
| CN105388360A (en) * | 2015-10-26 | 2016-03-09 | 于志伟 | Radar signal simulator test system and testing method |
| WO2017052508A1 (en) * | 2015-09-22 | 2017-03-30 | Mohammad Mamunur Rashid | Dynamic frequency selection (dfs) in licensed-assisted access networks using lte |
| CN113055101A (en) * | 2021-03-11 | 2021-06-29 | 深圳市吉祥腾达科技有限公司 | 3-frequency MESH product performance test system and test method |
| US11108472B1 (en) | 2019-10-08 | 2021-08-31 | Steven P. Leytus | Radar waveform generator configured for use in Wi-Fi systems testing |
| CN115834473A (en) * | 2022-10-18 | 2023-03-21 | 中国电子科技集团公司第十研究所 | Route switching equipment |
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| US11108472B1 (en) | 2019-10-08 | 2021-08-31 | Steven P. Leytus | Radar waveform generator configured for use in Wi-Fi systems testing |
| CN113055101A (en) * | 2021-03-11 | 2021-06-29 | 深圳市吉祥腾达科技有限公司 | 3-frequency MESH product performance test system and test method |
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Application publication date: 20140716 |