CN202856743U - Double-system portable radio direction finding device - Google Patents
Double-system portable radio direction finding device Download PDFInfo
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- CN202856743U CN202856743U CN2012202772065U CN201220277206U CN202856743U CN 202856743 U CN202856743 U CN 202856743U CN 2012202772065 U CN2012202772065 U CN 2012202772065U CN 201220277206 U CN201220277206 U CN 201220277206U CN 202856743 U CN202856743 U CN 202856743U
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Abstract
A double-system portable radio direction finding device is composed of antennas, a hypogynous control machine and an upper PC machine, wherein the antennas comprise an amplitude comparison direction-finding antenna, an interference direction-finding antenna array, a SMS receiving and sending antenna and a geographical location positioning antenna. The hypogynous control machine is provided with a two-channel radio frequency front-end receiving circuit, a receiver circuit, an electronic compass circuit, a geographical location positioning circuit, an interface circuit and a control logic circuit. The upper PC machine is a standard PC machine provided with corresponding modules. The device has functions of a fixed monitoring station and a portable direction-finding device. According to the device, remote quick positioning and close-range accurate positioning are integrated, amplitude comparison and interference direction-finding types are combined, and the upper PC machine of GIS or other geographical location positioning system is embedded in cooperation to complete various direction-finding functions. In comparison with equipment such as a fixed station, a vehicle-mounted moving station and the like, the device provided by the utility model is light in weight and small in size, has a simple structure, is portable, and has advantages of low power consumption, low cost and complete functions.
Description
Technical field
The utility model relates to a kind of electronic installation of monitoring the illegal wireless signal of telecommunication, exactly, the Portable radio direction finding device that relates to the double-standard of a kind of use frequency modulation (FM) frequency range monitoring illegal wireless signal of telecommunication, it has the dual-use function than the direction finding of width of cloth formula and interfere type direction finding, can work in coordination with large-scale monitoring station and finish the monitoring of illegal signals, belong to the technical field of radio direction finding equipment.。
Background technology
Radio signal is a kind of electromagnetic wave, and it is present in occurring in nature already, and after the mankind began to grasp this electromagnetic method of use, earth-shaking variation had occured in life.Be Italian's Marconi with radio application in what communicate by letter the earliest, he has carried out the radio communication experiment of about 2 kilometers distances with electromagnetic wave, and succeeds.This mode has greatly been accelerated the speed of Information Communication; But some new problems have also been introduced simultaneously.Along with the development of science and technology, produce contradiction between limited frequency spectrum resource and the growing spectrum requirement, the efficient propagation of information also produces contradiction with the fail safe of information.Around this series of problems, contemporary many new branch of science have been derived, such as communication engineering, information security, electromagnetic field and microwave etc.On the basis of these subjects, a special subject is arranged, it originates from World War II, and first Application just highlights its important function in war, successfully helps Germany to finish its location to the radio station, London and bombs, and this subject is exactly direction-finding station.
Along with socioeconomic continuous progress and development, militarily, direction-finding station extends to an important branch of electronic countermeasures gradually.On the other hand, country has set up special functional government departments with regard to construction and the development of this subject, is used for standardized administration Radio Spectrum Resource and electromagnetic environment.The athletic sports that direction-finding station or international the next item up are popularized and be subject to extensively welcoming very much.Even to this day, this motion still has many direction finding fans constantly to participate in.
Along with the development of radiotechnics with popularize, the continuous reduction of radio component and equipment cost thereof, some entity and individual are not registering in accordance with the law and are obtaining under the prerequisite of legal station license to radio control department, just use without authorization wireless transceiver.The behavior of this illegal use radio station and radio frequency has caused extremely bad impact to the common electrical magnetic environment.Because this phenomenon constantly occurs often, so that normal radio station usually is subject to severe jamming, the use of pirate radio also can cause very large harm to urban construction.For the long-term stability of the prosperity and development of economy and society, investigate and prosecute and ban one that these pirate radios have become in current many urban construction very urgent, arduous and important work.
Frequency modulation (FM) broadcasting is a kind of important communication channel that diffuses information in city, suburb and the rural area, and its R-T unit is simple in structure, and required components and parts are few, wide coverage, strong interference immunity, communication effect is good, and therefore many areas obtain a wide range of applications at home.But simultaneously also because its technology is simple, the characteristics of simple equipments have been grown a large amount of pirate radios, severe jamming the normal operation in legal FM radio station.
In order effectively to solve this phenomenon, the large-scale monitoring station is had in the radio monitoring department of various places, is used for the supervision of enhanced radio.Yet the large-scale monitoring station can only be located the doubtful zone of pirate radio, if will approach operation and accurately search out pirate radio, often needs to be used portable direction-finding device.Now, the portable direction-finding equipment that can see once in a while on the market, using mostly is based on and approaches operation and design production.In a word, in finishing the operation of searching radio interference source, the equipment such as the essential fixedly direction finding station of use or vehicle-mounted mobile station are determined orientation or zone roughly in advance, and then approach interference source with portable set.Thereby these equipment also are difficult to independent use to a certain extent.
The utility model content
In view of this, the purpose of this utility model provides a kind of Portable radio direction finding device of double-standard, this device is taken into account the function of the stationary monitoring station and two kinds of distinct devices of portable direction-finding device, be that it has a machine two-system: with remote interference direction-finding and closely two kinds of Measure direction performances of amplitude-comprised direction-finding be integrated in one, novel structure, multiple functional; This device is supported unit location and the two kinds of station-keeping modes in online location simultaneously, take full advantage of PC and modern communication technology, reload the corresponding modules such as GIS and map, adopt graphical interfaces to carry out man-machine interaction, can realize easily the various functions of direction-finding station, and show intuitively the direction finding result.
In order to achieve the above object, the utility model provides a kind of Portable radio direction finding device of double-standard, it is characterized in that: described device is by following three parts that are linked in sequence: antenna, the next controller and upper PC are formed, described antenna uses coaxial cable to connect the next controller, and the next controller connects upper PC by computer bus; Wherein,
Antenna comprises: the directional antenna that is used for the direction finding of amplitude comparison expression, the aerial array that is formed by 4 antennas, be used for the interfere type direction finding, the short message receiving-transmitting antenna, the electronic switching circuit of binary channels radio-frequency front-end receiving circuit is selected and is connected in Geographic mapping antenna and the switching that is used for direction-finder antenna;
The next controller as control subject is provided with: antenna receiving signal is amplified, shaping, sampling and analog-to-digital binary channels radio-frequency front-end receiving circuit, whether be used for listening to is the receiver circuit of pirate radio, by the short message receiving-transmitting circuit, determine electronic compass circuit and the global position system GPS (Global Positioning System) of aerial array reference bearing when being used for low speed or static state, the peripheral circuit of Big Dipper navigation system or other Geographic mapping the electric circuit constitutes, finish the short message receiving-transmitting of peripheral circuit, Geographic mapping is communicated by letter with the electronic compass circuit, and with the interface circuit of upper PC interactive communication, and the coordination of adopting on-site programmable gate array FPGA (Field-Programmable Gate Array) to consist of, the control logic circuit of the whole the next controller of management and control;
Upper PC is the PC of standard, be provided with graphical interfaces, the GIS-Geographic Information System GIS(Geographic Information System of man-machine interaction) localization process module and numerical map, with the mutual communication interface of the next controller, be used for supporting data and Communications Processor Module and the radio direction finding module of unit and/or the two kinds of direction finding station-keeping modes in online location.
The aerial array of described interfere type direction finding is provided with all identical 4 antennas of specification, structure, and keeping parallelism and contour between each antenna; Adopt binary channels to be connected between this interfere type aerial array and the next controller, utilize electronic switching circuit to be sent to the dual channel receiver circuit according to the reception signal of setting logical relation and switch 4 antennas of selection; Adopt single channel to be connected between described amplitude comparison expression directional antenna and the next controller.
Binary channels radio-frequency front-end receiving circuit in the described the next controller is provided with: the digital frequency synthesizer DDS (Direct Digital Synthesizer), the automatic gain control circuit AGC(Automatic Generation Control on the radio frequency path that produce local oscillation signal), be used for the outer filter that disturbs of filtering band, be used for reducing radio frequency path noise factor low noise amplifier and be used for downconverting the signal to the frequency mixer of intermediate frequency.
The function of described FPGA control logic circuit comprises: control radio-frequency front-end receiving circuit, receive and process GPS or other Geographic mapping data and the electronic compass data that obtain, control produces the DDS signal source of local oscillation signal, the control receiver circuit, finish the transmitting-receiving note, mutual with upper PC: receive upper PC instruction and send the related circuit of the next controller to, antenna receiving signal amplify with digital-to-analogue conversion after, send upper PC to.
Described short message receiving-transmitting circuit comprises the short message receiving-transmitting circuit of 2G, 3G or 4G.
Described interface circuit adopts USB interface, and this interface circuit is comprising the radio-frequency front-end receiving circuit, and the various signal combination of FPGA control logic circuit and position positioning circuit are in the same place, and utilizes a unified USB interface realization and the interactive communication of upper PC.
The direction finding that the Portable radio direction finding device of the utility model double-standard is used for frequency modulation (FM) wireless signal can not only realize the direction finding of unit independence, can also realize the online direction finding of multimachine.This device adopts the correlation interference formula to carry out the direction finding of wireless signal with the mode that two kinds of algorithms of amplitude comparison expression match, cooperate again GIS-Geographic Information System GIS to process locating module, direction finding and positioning result are presented on the electronic chart with graphical form, so that direction finding visual result, simple and clear.
The utility model is supported two kinds of station-keeping modes: a kind of is the unit station-keeping mode: every playscript with stage directions utility model device utilizes the repeatedly measurement result in the different location, forms the direction finding line at GIS, finally draws out intersectional region.This mode only needs unit work, but Measuring Time is longer, is fit to the radio station of the long-term emission of monitoring.Another kind is online station-keeping mode: many playscripts with stage directions utility model direction-finding device is measured simultaneously in the different location respectively, and measurement result is undertaken informing other direction-finding devices alternately that every direction-finding device can both be drawn out measurement result like this by the note form separately.The Measuring Time weak point that this pattern is required can be located the illegal signals source fast, but needs multimachine to work simultaneously, is fit to monitoring intermittently used radio station.
Advantage of the present utility model is: take into account the performance of fixed monitoring station and two kinds of equipment of portable direction-finding device, not only can use the interfere type direction finding that the distance transmission source is located fast; And, even in the extremely complicated place of the electromagnetic environments such as city, also can use the amplitude comparison expression to carry out closely accurately direction finding location, and the conversion of two kinds of direction finding modes only need switched antenna to get final product, very easy.Compare with direction-finding equipments such as fixed station, vehicle-mounted mobile stations, this installation weight is light, and volume is little, and is simple in structure, novel, is particularly suitable for portable; And power consumption is little, and cost is low, and is multiple functional, has good popularizing application prospect.
In a word, of the present utility modelly succeed in developing and apply, can greatly improve the search capability of the town and country malice broadcast source of China, be conducive to the better purifying space electromagnetic environment, promote the sound development that Urban and rural area is built.
Description of drawings
Fig. 1 is that the structure of the Portable radio direction finding device of the utility model double-standard forms schematic diagram.
Fig. 2 is the Simulation results schematic diagram of online testing embodiment of the Portable radio direction finding device of the utility model double-standard.
Embodiment
Introduce structure of the present utility model for clearer, operation principle and characteristics, the below comes this device is further elaborated with two accompanying drawings.
Referring to Fig. 1, the structure of introducing the Portable radio direction finding device of the utility model double-standard forms: this device is provided with following three parts that are linked in sequence: antenna, the next controller that is connected with antenna with coaxial cable, and by computer bus be connected the upper PC that controller connects.The below introduces respectively this three parts:
Antenna part, be provided with: the directional antenna that is used for the direction finding of amplitude comparison expression, be used for the interfere type direction finding aerial array (its by specification and structure all between identical and each antenna keeping parallelism and contour 4 antennas consisted of), totally four kinds on short message receiving-transmitting antenna and Geographic mapping antenna; Wherein, adopt single channel to be connected between amplitude comparison expression directional antenna and the next controller, adopt binary channels to be connected between interfere type aerial array and the next controller, the electronic switching circuit of antenna part is exactly for switching the reception signal of selecting 4 antennas according to setting logical relation, in order to be connected to binary channels radio-frequency front-end receiving circuit.
The next controller, it is the critical component of this device, be provided with: antenna receiving signal is amplified, shaping, sampling and analog-to-digital binary channels radio-frequency front-end receiving circuit, whether be used for listening to is the receiver circuit (its input is that amplitude comparison expression directional antenna is connected loud speaker or earphone with output) of pirate radio and the scan function that is connected upper PC execution FM full frequency band radio station, by 2G, the short message receiving-transmitting circuit of 3G and/or 4G, determine electronic compass circuit and the global position system GPS of aerial array reference bearing when being used for low speed or static state, the peripheral circuit of Big Dipper navigation system or other Geographic mapping the electric circuit constitutes, finish the short message receiving-transmitting of peripheral circuit, Geographic mapping is communicated by letter with the electronic compass circuit, and with the interface circuit of upper PC interactive communication, and the coordination of adopting on-site programmable gate array FPGA to consist of, the whole the next controller of management and control and the control logic circuit of finishing information interaction and buffer memory.Wherein each radio-frequency front-end receiving circuit is provided with: produce local oscillation signal digital frequency synthesizer DDS, the automatic gain control circuit AGC on the radio frequency path, be used for the outer filter that disturbs of filtering band, be used for reducing radio frequency path noise factor low noise amplifier and be used for downconverting the signal to the frequency mixer of intermediate frequency.The function of FPGA control logic circuit comprises: control radio-frequency front-end receiving circuit, receive and process GPS or other Geographic mapping data and the electronic compass data that obtain, control produces the DDS signal source of local oscillation signal, the control receiver circuit, finish the transmitting-receiving note, mutual with upper PC: receive its instruction and send the related circuit of the next controller to, antenna receiving signal amplify with digital-to-analogue conversion after, send upper PC to.Interface circuit is to comprise the radio-frequency front-end receiving circuit with the USB interface handle, after the various signals of FPGA control logic circuit and position positioning circuit make up, merges into a single whole, and recycles unified USB interface realization and the interactive communication of upper PC
Upper PC is the PC of standard, be provided with graphical interfaces, GIS-Geographic Information System GIS localization process module and the numerical map of man-machine interaction, with the mutual communication interface of the next controller, be used for supporting data and Communications Processor Module and the radio direction finding module of unit and/or the two kinds of direction finding station-keeping modes in online location.
For making the technical solution of the utility model and advantage clearer, following brief description working mechanism of the present utility model and operating process, working mechanism wherein is: the signal of antenna reception is selected respective channel by electronic switching circuit first, by binary channels radio-frequency front-end receiving circuit signal is amplified again, filtering and frequency conversion, send into control logic circuit by analog-to-digital conversion again, after control logic circuit is processed it, pass on upper PC, carry out computing by corresponding the corresponding function module, finally draw the position of FM signal emitting-source, and on human-computer interaction interface the Graphics Processing result.
Operating process of the present utility model is,
(1) after device powers on, access first than width of cloth formula antenna, use the direct scan function that the movable radio station that exists is at present all shown, automatically get rid of known legal radio station, the function of radio receiver by receiver circuit again, use the radio station of the not clear situation of loud speaker or headphone monitor, whether legal to judge this FM electric wave.
(2) find to monitor be pirate radio after, selection interfere type direction finding method, by electronic compass, the interfere type direction finding method is sought the true bearing of this pirate radio, and shows in the GIS map.Then, need to determine targeting scheme, namely adopt unit location or online location.The unit positioning action is simple, but speed is slow, and accuracy is slightly poor.Online locating speed is fast, and accuracy is high, but wants multi-machine collaborative work, relative complex.In order fully to show the function of this device, the below introduces the mode that adopts online location.
(3) measured by control circuit first in every direction-finding device, obtain geographical position and the azimuth information of antenna array.GPS circuit measuring antenna array position wherein, electronic compass is measured the reference bearing of antenna array, after again both measurement results being carried out aggregation process, after being sent to upper P machine and processing by interface circuit, inform other other direction-finding devices (referring to Fig. 2, A wherein, B, 3 of C are three direction-finding device positions that are distributed in diverse location) with short message way again.
(4) the main direction finder station machine is processed in upper PC according to the joint test result that other direction-finding device sends, and shows online testing result (referring to Fig. 2, the pirate radio source is the delta-shaped region D among the figure) at the man-machine interaction graphical interfaces.
(5) cross when showing the general areas at illegal emission source place at electronic chart when upper PC, switch to again than the direction finding of width of cloth formula, use and carry out measurement of near distance than width of cloth formula antenna, then finally find out illegal emission source location by the directionality of antenna.
The utility model has successfully been developed performance prototype, and has carried out implementing test, and result of the test is successfully, has realized goal of the invention.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (6)
1. the Portable radio direction finding device of a double-standard, it is characterized in that: described device is by following three parts that are linked in sequence: antenna, the next controller and upper PC are formed, described antenna uses coaxial cable to connect the next controller, and the next controller connects upper PC by computer bus; Wherein,
Antenna comprises: the directional antenna that is used for the direction finding of amplitude comparison expression, the aerial array that is formed by 4 antennas, be used for the interfere type direction finding, the short message receiving-transmitting antenna, the electronic switching circuit of binary channels radio-frequency front-end receiving circuit is selected and is connected in Geographic mapping antenna and the switching that is used for direction-finder antenna;
The next controller as control subject is provided with: antenna receiving signal is amplified, shaping, sampling and analog-to-digital binary channels radio-frequency front-end receiving circuit, whether be used for listening to is the receiver circuit of pirate radio, by the short message receiving-transmitting circuit, determine electronic compass circuit and the global position system GPS of aerial array reference bearing when being used for low speed or static state, the peripheral circuit of Big Dipper navigation system or other Geographic mapping the electric circuit constitutes, finish the short message receiving-transmitting of peripheral circuit, Geographic mapping is communicated by letter with the electronic compass circuit, and with the interface circuit of upper PC interactive communication, and the coordination of adopting on-site programmable gate array FPGA to consist of, the control logic circuit of the whole the next controller of management and control;
Upper PC is the PC of standard, be provided with graphical interfaces, GIS-Geographic Information System GIS localization process module and the numerical map of man-machine interaction, with the mutual communication interface of the next controller, be used for supporting data and Communications Processor Module and the radio direction finding module of unit and/or the two kinds of direction finding station-keeping modes in online location.
2. Portable radio direction finding device according to claim 1 is characterized in that: the aerial array of described interfere type direction finding is provided with all identical 4 antennas of specification, structure, and keeping parallelism and contour between each antenna; Adopt binary channels to be connected between this interfere type aerial array and the next controller, utilize electronic switching circuit to be sent to the dual channel receiver circuit according to the reception signal of setting logical relation and switch 4 antennas of selection; Adopt single channel to be connected between described amplitude comparison expression directional antenna and the next controller.
3. Portable radio direction finding device according to claim 1, it is characterized in that: the binary channels radio-frequency front-end receiving circuit in the described the next controller is provided with: produce digital frequency synthesizer DDS, the automatic gain control circuit AGC on the radio frequency path of local oscillation signal, the frequency mixer that is used for the outer filter that disturbs of filtering band, is used for reducing the low noise amplifier of radio frequency path noise factor and is used for downconverting the signal to intermediate frequency.
4. Portable radio direction finding device according to claim 1, it is characterized in that: the function of described FPGA control logic circuit comprises: control radio-frequency front-end receiving circuit, receive and process GPS or other Geographic mapping data and the electronic compass data that obtain, control produces the DDS signal source of local oscillation signal, the control receiver circuit, finish the transmitting-receiving note, mutual with upper PC: as to receive upper PC instruction and send the related circuit of the next controller to, antenna receiving signal amplify with digital-to-analogue conversion after, send upper PC to.
5. Portable radio direction finding device according to claim 1, it is characterized in that: described short message receiving-transmitting circuit comprises the short message receiving-transmitting circuit of 2G, 3G or 4G.
6. Portable radio direction finding device according to claim 1, it is characterized in that: described interface circuit adopts USB interface, this interface circuit is comprising the radio-frequency front-end receiving circuit, the various signal combination of FPGA control logic circuit and position positioning circuit are in the same place, and utilize a unified USB interface realization and the interactive communication of upper PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202772065U CN202856743U (en) | 2012-06-12 | 2012-06-12 | Double-system portable radio direction finding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202772065U CN202856743U (en) | 2012-06-12 | 2012-06-12 | Double-system portable radio direction finding device |
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| CN202856743U true CN202856743U (en) | 2013-04-03 |
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| CN2012202772065U Expired - Fee Related CN202856743U (en) | 2012-06-12 | 2012-06-12 | Double-system portable radio direction finding device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812576A (en) * | 2014-01-27 | 2014-05-21 | 中国电子科技集团公司第十研究所 | Comprehensive system of self-adapting anti-interference antenna channel |
| CN104717655A (en) * | 2013-12-14 | 2015-06-17 | 中国人民解放军63888部队 | Distributed spectrum management system |
| CN107765211A (en) * | 2017-10-18 | 2018-03-06 | 国家新闻出版广电总局广播科学研究院 | A kind of detecting system to failing to understand radio and television intrusion signal |
-
2012
- 2012-06-12 CN CN2012202772065U patent/CN202856743U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717655A (en) * | 2013-12-14 | 2015-06-17 | 中国人民解放军63888部队 | Distributed spectrum management system |
| CN104717655B (en) * | 2013-12-14 | 2019-01-22 | 中国人民解放军63888部队 | Distributed frequency spectrum management system |
| CN103812576A (en) * | 2014-01-27 | 2014-05-21 | 中国电子科技集团公司第十研究所 | Comprehensive system of self-adapting anti-interference antenna channel |
| CN103812576B (en) * | 2014-01-27 | 2016-06-15 | 中国电子科技集团公司第十研究所 | Adaptive Anti-jamming antenna channel integrated system |
| CN107765211A (en) * | 2017-10-18 | 2018-03-06 | 国家新闻出版广电总局广播科学研究院 | A kind of detecting system to failing to understand radio and television intrusion signal |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20150612 |
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| EXPY | Termination of patent right or utility model |