CN103312423B - Multimode satellite receiver tracking source switch testing device - Google Patents
Multimode satellite receiver tracking source switch testing device Download PDFInfo
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- CN103312423B CN103312423B CN201310212992.XA CN201310212992A CN103312423B CN 103312423 B CN103312423 B CN 103312423B CN 201310212992 A CN201310212992 A CN 201310212992A CN 103312423 B CN103312423 B CN 103312423B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to a multimode satellite receiver tracking source switch testing device, which comprises satellite receiving antennae, an interference signal unit, a multipath signal noise controller and a control terminal, wherein the multipath signal noise controller comprises a power divider circuit, a first combiner circuit, a processor and signal noise control circuits; the processor is respectively connected with the control terminal and the signal noise control circuits; signals of the satellite receiving antennae and signals of the interference signal unit are sent to corresponding signal noise control circuits; and the output end of each signal noise control circuit is connected withthe input end of a multimode satellite receiver through the first combiner circuit. The testing device with the structure effectively performs switch tests on a plurality of tracking sources of the multimode satellite receiver, is low in power consumption and low in cost, and is easy to operate, so that the testing device greatly meets the application requirement of satellite navigation system application equipment manufacturers, and promotes the economic benefit.
Description
Technical field
The present invention relates to a kind of testing apparatus, particularly relate to a kind of multi-mode satellite receiver tracking source switch test device.
Background technology
Satellite navigation system has extensive and important application in fields such as communication, electric power, national defence and finance.Really can be used at present commercial or civilian satellite navigation system and mainly comprise the GPS of the U.S., the Big Dipper (COMPASS) of China and Muscovite GLONASS; and for the consideration of fail safe and reliability; usually the mutually redundant application mode of multi-satellite navigation system can be adopted in industry application scheme; namely multi-mode satellite receiver is adopted; this receiver can receive the signal of multiple satellite navigation system simultaneously; and when primary tracing source occurs abnormal, tracing source for subsequent use can be automatically switched to.
When applying multi-mode satellite receiver, need to carry out tracing source switch test to it.Conventional method adopts the Satellite Simulation signal source of multisystem to carry out simulation test, although this tester precision is high and powerful, but its system architecture is quite complicated, hardware and software cost is high, involves great expense, and it is very big to realize difficulty, poor operability, if the price of a usual domestic multi-mode satellite simulation signal generator is 150,000-35 ten thousand, and require high for the technical merit of operating personnel, often need could be competent at through special training.And for application apparatus manufacturer, often just adopt multi-mode satellite receiver to carry out secondary development, so be usually reluctant to buy costliness like this specially and the equipment of complicated operation to carry out switch test.Meanwhile, the power consumption of this tester is large, and volume is large, is not suitable for outdoor test, therefore can not meets the application demand of general industry far away.
Summary of the invention
For overcoming the deficiency of above prior art, the technical problem to be solved in the present invention is to provide a kind of low-power consumption, low cost, can meets the multi-mode satellite receiver tracking source switch test device of the general sector application demand of most of satellite navigation system application apparatus manufacturer.
Technical scheme of the present invention is:
A kind of multi-mode satellite receiver tracking source switch test device, comprise at least two group satellite earth antennas, also comprise interference signal unit, multichannel noise controller and control terminal, multichannel noise controller comprises merit parallel circuit, first and closes road circuit, processor and at least two group noise control circuits.Control terminal is connected with processor, and for sending noise control command to processor, processor is also connected with each group of noise control circuit respectively, for noise control command is delivered to each group of noise control circuit; The radiofrequency signal of each group of satellite earth antenna output delivers to each group of corresponding noise control circuit respectively, and the Radio Frequency Interfere that interference signal unit exports also delivers to each group of noise control circuit respectively after merit parallel circuit, the radiofrequency signal of input and Radio Frequency Interfere are regulated and controled according to noise control command for each group of noise control circuit; First input closing road circuit is connected with the output of each group of noise control circuit, and for the output signal organizing noise control circuit being integrated, and the first output closing road circuit is connected with the input of multi-mode satellite receiver more.
Above-mentioned multi-mode satellite receiver tracking source switch test device, noise control circuit comprises adjustable gain circuit, adjustable damping circuit and second closes road circuit, wherein radiofrequency signal delivers to adjustable damping circuit, Radio Frequency Interfere delivers to adjustable gain circuit, and the output of adjustable damping circuit and adjustable gain circuit is connected with the second input closing road circuit respectively, the second output closing road circuit is connected with the first input closing road circuit.
Above-mentioned multi-mode satellite receiver tracking source switch test device, wherein the content of noise control command comprises noise control circuit channel number, Radio Frequency Interfere yield value and radio frequency signal attenuation value.
Above-mentioned multi-mode satellite receiver tracking source switch test device, wherein processor is connected with each group of noise control circuit by same data/address bus, and processor and each group between noise control circuit are multichannel tdm communication.
Above-mentioned multi-mode satellite receiver tracking source switch test device, wherein control terminal is personal computer or industrial computer.
Above-mentioned multi-mode satellite receiver tracking source switch test device, wherein interference signal unit adopts signal generator, and signal generator is connected by the input of feeder line with merit parallel circuit.
Above-mentioned multi-mode satellite receiver tracking source switch test device, wherein interference signal unit is wireless transmitting device, and wireless transmitting device is connected to the input of merit parallel circuit by passive WiMAX reception antenna.
The invention has the beneficial effects as follows: by adopting said structure, the invention provides a kind of new system architecture mode and mode of operation, and just can complete corresponding design and test job based on the averaging level of laboratory conventionally test platform and most manufacturers tester, thus both effectively achieved the switch test of the multiple tracing source to multi-mode satellite receiver, achieve again low-power consumption and low cost, and operating process is simple, this meets the application demand of satellite navigation system application apparatus manufacturer greatly, facilitates the remarkable lifting of economic benefit.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is the circuit principle structure figure of multi-mode satellite receiver tracking source switch test device;
Fig. 2 is the principle assumption diagram of the noise control circuit in the switch test device of multi-mode satellite receiver tracking source;
Fig. 3 is the embodiment schematic diagram of multi-mode satellite receiver tracking source switch test device.
In figure: multichannel noise controller 1, noise control circuit 2.
Embodiment
As depicted in figs. 1 and 2, a kind of multi-mode satellite receiver tracking source switch test device, comprise at least two group satellite earth antennas, also comprise interference signal unit, multichannel noise controller 1 and control terminal, multichannel noise controller 1 comprises merit parallel circuit, first and closes road circuit, processor and at least two group noise control circuits.Control terminal is connected with processor, and for sending noise control command to processor, as preferably, control terminal can be personal computer or industrial computer, and control terminal communicates with processor by common Asynchronous Serial Interface.And processor is also connected with each group of noise control circuit 2 respectively, for noise control command is delivered to each group of noise control circuit 2.The radiofrequency signal of each group of satellite earth antenna output delivers to each group of corresponding noise control circuit 2 respectively, and the Radio Frequency Interfere that interference signal unit exports also delivers to each group of noise control circuit 2 respectively after merit parallel circuit, regulate and control the radiofrequency signal of input and Radio Frequency Interfere according to noise control command for each group of noise control circuit 2, wherein the content of above-mentioned noise control command can comprise noise control circuit channel number, Radio Frequency Interfere yield value and radio frequency signal attenuation value etc.First input closing road circuit is connected with the output of each group of noise control circuit 2, and for the output signal of each group of noise control circuit 2 being integrated, and the first output closing road circuit is connected with the input of multi-mode satellite receiver.
In the switch test device of above-mentioned multi-mode satellite receiver tracking source, noise control circuit 2 can comprise adjustable gain circuit, adjustable damping circuit and second closes road circuit, wherein radiofrequency signal delivers to adjustable damping circuit, thus radio frequency signal is decayed, and the attenuation of circuit is write by processor; Radio Frequency Interfere delivers to adjustable gain circuit, thus radio frequency interference signal is amplified, and the amount of gain of circuit is also write by processor.And, the output of above-mentioned adjustable damping circuit and adjustable gain circuit is connected with the second input closing road circuit respectively, close road circuit by second to integrate above two paths of signals, and for often organizing noise control circuit 2, its second output closing road circuit is connected with the first input closing road circuit in multichannel noise controller 1 again, like this, after carrying out signal integration finally by the first conjunction road circuit, finally just export a road signal, as the test signal delivering to multi-mode satellite receiver inlet.
For above-mentioned multi-mode satellite receiver tracking source switch test device, wherein processor is connected with each group of noise control circuit 2 by same data/address bus, and controlled the sheet choosing of different noise control circuit 2 by multiple I/O mouth respectively, thus the multichannel tdm communication achieving processor and respectively organize between noise control circuit 2.
For above-mentioned interference signal unit, can adopt signal generator, and signal generator is connected by the input of feeder line with merit parallel circuit, this scheme can under the prerequisite meeting tracing source switch test, obtain the anti-interference index of equipment under test, compare the application being applicable to the communications industry; Certainly, if for the industry that required precision is relatively low, usually interference signal unit simulation is only needed to go out interference effect close to true environment, and then the tracing source handoff functionality of test multi-mode satellite receiver, therefore interference signal unit now also can be wireless transmitting device, and wireless transmitting device is connected to the input of merit parallel circuit by passive WiMAX reception antenna.
In actual application, as a kind of specific embodiment, as shown in Figure 3, a kind of Big Dipper/GPS dual-mode satellite receiver tracing source switch test device can comprise a Beidou antenna, a gps antenna, a signal generator, a multichannel noise controller 1, a PC and supporting power supply, and this multichannel noise controller 1 comprises two merit parallel circuits, a two-in-one conjunction road circuit, two groups of noise control circuits, a processor and peripheral circuit (as realizing the level shifting circuit that rs 232 serial interface signal drives) thereof.
Above-mentioned Big Dipper signal and gps signal respectively enter one group of adjustable damping circuit, the Radio Frequency Interfere merit that signal generator produces is divided into two-way, enter two groups of adjustable gain circuit respectively, switch to Big Dipper tracing source to test GPS tracing source, its concrete testing procedure is as follows:
1) by Beidou antenna and gps antenna access multichannel noise controller 1, and the connection of cut-off signal generator and multichannel noise controller 1, the pad value and the yield value that arrange two groups of adjustable damping circuit and two groups of adjustable gain circuit are respectively zero, monitor the operating state of now dual mode satellite receiver;
2) after above-mentioned dual mode satellite receiver indicates two tracing source all available, the frequency of conditioning signal generator output signal, make it close to L1 frequency range (GPS), and send noise control command by the Solarnumen Comdebug that PC holds to multichannel noise controller 1, control the signal to noise ratio that this testing apparatus exports gps signal, gps signal was lost efficacy;
3) monitor dual mode satellite receiver and whether switch to Big Dipper tracing source by GPS tracing source, thus complete one group of tracing source switch test.
By adopting said structure, the invention provides a kind of new system architecture mode and mode of operation, and just can complete corresponding design and test job based on the averaging level of laboratory conventionally test platform and most manufacturers tester, thus both effectively achieved the switch test of the multiple tracing source to multi-mode satellite receiver, achieve again low-power consumption and low cost, and operating process is simple, this meets the application demand of satellite navigation system application apparatus manufacturer greatly, make it to be more applicable for sector application, facilitate the remarkable lifting of economic benefit.
By reference to the accompanying drawings the preferred embodiments of the disclosure and embodiment are explained in detail above, but the present invention is not limited to the above-described embodiment and examples, in the ken that those skilled in the art possess, various change can also be made without departing from the inventive concept of the premise.
Claims (7)
1. a multi-mode satellite receiver tracking source switch test device, comprise at least two group satellite earth antennas, it is characterized in that: also comprise interference signal unit, multichannel noise controller and control terminal, described multichannel noise controller comprises merit parallel circuit, first and closes road circuit, processor and at least two group noise control circuits;
Described control terminal is connected with described processor, for sending noise control command to processor;
Described processor is also connected with described each group of noise control circuit respectively, for described noise control command is delivered to each group of noise control circuit;
The radiofrequency signal that described each group of satellite earth antenna exports delivers to each group of corresponding noise control circuit respectively, and the Radio Frequency Interfere that described interference signal unit exports also delivers to each group of noise control circuit respectively after described merit parallel circuit, each group noise control circuit regulates and controls the radiofrequency signal of input and Radio Frequency Interfere according to noise control command;
Described first input closing road circuit is connected with the output of each group of noise control circuit, and for the output signal organizing noise control circuit being integrated, and the described first output closing road circuit is connected with the input of multi-mode satellite receiver more.
2. multi-mode satellite receiver tracking source as claimed in claim 1 switch test device, it is characterized in that: described noise control circuit comprises adjustable gain circuit, adjustable damping circuit and second closes road circuit, described radiofrequency signal delivers to described adjustable damping circuit, described Radio Frequency Interfere delivers to described adjustable gain circuit, and the output of described adjustable damping circuit and adjustable gain circuit is connected with the described second input closing road circuit respectively, the described second output closing road circuit is connected with the described first input closing road circuit.
3. multi-mode satellite receiver tracking source as claimed in claim 1 or 2 switch test device, is characterized in that: the content of described noise control command comprises noise control circuit channel number, Radio Frequency Interfere yield value and radio frequency signal attenuation value.
4. multi-mode satellite receiver tracking source as claimed in claim 1 or 2 switch test device, it is characterized in that: described processor is connected with described each group of noise control circuit by same data/address bus, is multichannel tdm communication between described processor and described each group of noise control circuit.
5. multi-mode satellite receiver tracking source as claimed in claim 4 switch test device, is characterized in that: described control terminal is personal computer or industrial computer.
6. multi-mode satellite receiver tracking source as claimed in claim 5 switch test device, is characterized in that: described interference signal unit adopts signal generator, and described signal generator is connected by the input of feeder line with described merit parallel circuit.
7. multi-mode satellite receiver tracking source as claimed in claim 5 switch test device, it is characterized in that: described interference signal unit is wireless transmitting device, and described wireless transmitting device is connected to the input of described merit parallel circuit by passive WiMAX reception antenna.
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| CN201310212992.XA CN103312423B (en) | 2013-05-31 | 2013-05-31 | Multimode satellite receiver tracking source switch testing device |
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| CN201310212992.XA CN103312423B (en) | 2013-05-31 | 2013-05-31 | Multimode satellite receiver tracking source switch testing device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104049263B (en) * | 2014-06-23 | 2016-06-29 | 郑州威科姆科技股份有限公司 | The base band statistical multiplex method of reseptance of multimodal satellite navigation signal |
| CN104113494A (en) * | 2014-07-23 | 2014-10-22 | 刘瑞 | Network information real-time switching device used for cloud computing center |
| WO2018184197A1 (en) * | 2017-04-07 | 2018-10-11 | 深圳市大疆创新科技有限公司 | Signal jamming circuit and device |
| CN109765573B (en) * | 2017-11-09 | 2023-04-25 | 郑州威科姆科技股份有限公司 | Detection device and method for antenna feed system of satellite time synchronization equipment |
| CN109067449B (en) * | 2018-05-28 | 2021-08-03 | 成都市精准时空科技有限公司 | Multimode satellite communication terminal with multiple antenna lines and method |
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| DE102006006266A1 (en) * | 2005-02-13 | 2006-08-24 | Lindenmeier, Heinz, Prof. Dr. Ing. | Reception system for receiving digitally modulated radio signals on moving vehicle, updates reference phase when phase reference signal that carries current reference phase related to reference signal occurs |
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| CN101697383A (en) * | 2009-10-27 | 2010-04-21 | 中国海洋石油总公司 | Double tracking satellite antenna system and using method thereof |
| CN102176030A (en) * | 2010-12-31 | 2011-09-07 | 桂林电子科技大学 | Global positioning system (GPS)/global navigation satellite system (GLONASS) dual-system combination simulator and method |
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Effective date of registration: 20210113 Address after: 315000 No.128, building 18, No.818, Qiming Road, Panhuo street, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: Ningbo meow Technology Co., Ltd Patentee after: ZHENGZHOU VCOM SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: 450001 No.5, Lianhua street, high tech Industrial Development Zone, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU VCOM SCIENCE AND TECHNOLOGY Co.,Ltd. |
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