CN201656990U - Intelligent radio interference search system - Google Patents
Intelligent radio interference search system Download PDFInfo
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- CN201656990U CN201656990U CN2010201535769U CN201020153576U CN201656990U CN 201656990 U CN201656990 U CN 201656990U CN 2010201535769 U CN2010201535769 U CN 2010201535769U CN 201020153576 U CN201020153576 U CN 201020153576U CN 201656990 U CN201656990 U CN 201656990U
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Abstract
The utility model discloses an intelligent radio interference search system, which belongs to the technical field of electronic information and mainly solves the problem that the prior art can hardly find the interference source. The intelligent radio interference search system comprises a central processing device and at least three monitoring devices located at different locations, wherein all the monitoring devices are respectively connected with the central processing device via a communication network. Each monitoring device comprises a signal receiver, an internal control circuit and a PC computer which are sequentially connected. External signals enter the monitoring device from the signal receiver, are outputted from the PC computer, enter the central processing device via the communication network, and are processed by the time-of-arrival location technique; and the task instruction timely sent by the central processing device enters the monitoring device via the PC computer to coordinate the operation of the system. The utility model has the advantages of ingenious design, complete functions, high interference source search accuracy, quick search and high practicability.
Description
Technical field
The utility model relates to a kind of interference source and searches system, specifically, relates to a kind of radio interference intellectual search system
Background technology
In the radio monitoring task, searching radio interference and pirate radio is a very important task, but, because the complexity of the radio interference origin cause of formation and the application limitation (space-time limitation, environmental impact and technology limitation) of searching equipment, having caused most of interference sources to search wastes time and energy, even can't getting rid of of having, this makes that again the task of searching radio interference source becomes very arduous.Search radio interference at present, the general technology that adopts has:
1. the direction finding location that crosses: adopt many direction-finder sets, same interference source is carried out direction finding, by the crossing of direction finding, determine the interference source region again.
2. electromagnetic field intensity is located: adopt many receivers, same interference source is carried out field strength measurement, obtain the field intensity value and carry out analytical calculation, determine the position of interference source place.
3. interference analysis: adopt the identification of software radio and signal, analytical technology, in conjunction with interference signal feature and peripheral electromagnetic environment situation, the attribute and the origin cause of formation to interference signal are analyzed, and determine the scope that exists of interference type and interference source, determine the position of interference source place in conjunction with additive method again.
4. mixed positioning: two or more methods combines and analyzes the origin cause of formation and the position of determining interference source and got rid of.
All there is the defective of each side in above-mentioned several technology, mainly shows:
1. the direction finding location that crosses
The direction finding direction-finder set that the location uses that crosses is a kind of technical sophistication, expensive equipment, and it is too many that city can not be disposed, and all be in the majority with fixed station, and layout is limited relatively;
No matter be the amplitude-comprised direction-finding machine,, in city proper or complicated geographical environment during direction finding, usually be subjected to the influence that multipath disturbs and cause direction finding precision to reduce, so that have influence on positioning accuracy still than phase direction-finder set;
Because what the direction finding end value obtained is angle-data, the result that therefore crosses can only obtain a plane domain, is difficult to orient the area of space of interference source;
Direction finding crosses and locatees the plane domain size that obtains, with the direction finding precision of equipment, direction finding distance, echo signal to obtain factors such as quality, geographical environment, the positioning algorithm based that crosses relevant, therefore, use the direction finding location interference source that crosses usually to be subjected to the influence of external environment;
As long as the signal quality that has a direction-finder set to receive is relatively poor, the confidence level of the location that crosses will be had a greatly reduced quality, even may cause catching the forfeiture of opportunity;
Comprehensive the problems referred to above make to cross after the location determines the interference source region with direction finding that need adopt various means toward contact, the flower lot of manpower and material resources continues to search.
2. electromagnetic field intensity is located
The radio wave propagation is subjected to the influence of factors such as geographical environment, atmosphere cloud layer, physical phenomenons such as direct projection, reflection, diffraction, scattering, refraction, absorption can appear, the distribution that multipath transmisstion can cause electromagnetic field intensity presents complicated and diversified distortion because of the difference of environmental aspect, therefore, need to set up a large amount of electromagnetic field models that adapt to it, workload is huge;
Artificial any electromagnetic field model of setting up all is difficult to the electromagnetic field situation that reflection echo signal source truly distributes at the scene, relies on the some field intensity of part sampling, determines unknown interference source zone, the confidence level existing problems, and fuzzy region is very big;
The field intensity numerical value that site of deployment is measured is as locator data, and is very high to the certainty of measurement requirement of receiver, therefore causes equipment very expensive;
So, in city proper anywhere generation radio interference, use the electromagnetic field intensity location, may determine a very big and fuzzy zone, and the confidence level existing problems, also need the flower lot of manpower and material resources to continue to search.
3. interference analysis
Interference analysis is a kind of indirect localization method, and it need add the artificial intelligence analysis, and adds the place, position that other means are determined interference source, can't directly locate; In addition, it has higher requirements to receiver and signal processing technology, many electromagnetic interference occur having contingency, need a large amount of the waiting for the time of cost, and many electromagnetic interference are when occurring, short weak strength of time, the attribute information integrality that comprises is poor, and the complexity of the electromagnetic interference origin cause of formation makes that analyzing difficulty increases greatly in addition, also prolong greatly analysis time, and when the execution radio interference is searched task, often require to find interference source as early as possible and give eliminating, even be exactly the situation of life if having time, therefore, this does not meet the requirement of quick and precisely searching radio interference source yet.
4. mixed positioning
Some shortcomings can be overcome, seek rate can be accelerated, but the manpower and materials of employing, the technological means and the equipment amount that need can be not little, and this is impossible realize in the executive arm of some technical forces and equipment deficiency.
The utility model content
The purpose of this utility model is to provide a kind of radio interference intellectual search system, avoids the influence of external environment, improves the accuracy rate and the efficient of searching radio interference source.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of radio interference intellectual search system comprises center processing device, and at least three monitoring equipments that are positioned at diverse location, and all monitoring equipments are connected with center processing device by communication network respectively.
Described monitoring equipment comprises signal receiving device, internal control circuit and the PC that is linked in sequence.Wherein, signal receiving device is an antenna, specifically, is unidirectional reception antenna, and its function is to receive the interference signal that external interference source sends, and transmits it to internal control circuit.
Described internal control circuit comprises A/D modular converter, DDC controller, Comprehensive Control module and DSP, external signal (interference signal) enters monitoring equipment by signal receiving device, successively by A/D modular converter, DDC controller, Comprehensive Control module and DSP, arrive PC, the data after handling through PC transfer to center processing device from communication network.Center processing device is carried out time difference localization process according to the data that each monitoring equipment transmits, and determines the position of interference source.Time difference localization process mainly realizes by software.
In the whole system operation process, described center processing device is sent to DSP, DDC controller and Comprehensive Control module with assignment instructions respectively through PC in real time, the work of control monitoring equipment coherent system.
For guaranteeing consistent on each monitoring equipment and the center processing device clock, also be provided with GPS and time base system in the described monitoring equipment, the clock sync signal that GPS and time base system send in real time enters A/D modular converter and DDC controller respectively by the Comprehensive Control module, and input to PC by DSP, PC transfers to center processing device with clock sync signal from communication network, realize the consistency on clock between each equipment of whole system, thereby improve time difference locating accuracy.
The utility model adopts the method for time difference location and interference analysis combination, and the position that utilizes the time difference to locate to search interference source utilizes interference analysis to determine type and the attribute that disturbs, for the eliminating interference provides foundation then.Wherein, time difference location is the time that arrives different monitoring stations by the interference signal that the measurement target interference source sends, and utilize to arrive that the time difference realizes locating.For the step-out time of measuring-signal, the precise synchronization of time must be able to be accomplished in each base station.Do computing cross-correlation by the signal that extension station is received with the signal that main website receives, obtain correlation peak, be exactly the estimated value of the time difference location time of delay of peak value correspondence.In two-dimensional coordinate, the hyperbola that it is focus with two base stations that the estimated value of a time difference location can define, the target interference source is located on the hyperbola.If there are three base stations to participate in measuring, just can obtain the estimated value of two time difference location, obtain two hyperbolas, two hyp intersection points are exactly the position of target interference source.Because the time belongs to independent parameter in the radio wave propagation process, can not be affected by the external environment and distortion occurs, therefore very easily obtain accurate data.After finding the position of interference source, just need analyze the attribute and the type of interference source, generally be feature and the peripheral electromagnetic environment situation that characterizes out according to interference signal, method, signalling channel parameter adjustment determining method, interference signal occurred carrying out analysis and judgement with methods such as not going out electromagnetic environment changing condition comparison now method, interference signal origin cause of formation simulation, interference signal attribute exclusive method in conjunction with the interference signal aspect ratio.
For cooperating hardware effort, improve the efficient of signal processing and each base station collaborative work, the sophisticated systems function, the utility model also is provided with Control Software specially.Under the control of software, the automatic recognition objective signal condition of described center processing device is determined to adopt which kind of signal characteristic as accepting and believing benchmark according to state automatically, issues the collaborative work order automatically; Under the effect of time base system, center processing device control monitoring equipment carries out the task setting, and regularly the clock unanimity is guaranteed in time service; Simultaneously, center processing device is also collected the data that monitoring equipment obtains and is handled, and reports the result automatically after finishing the work.The Comprehensive Control module is the signal processing center of each monitoring equipment, and the interference signal that it is responsible for that antenna is received carries out mailing to PC after the relevant treatment.
In the utility model, monitoring equipment generally is installed in the monitoring station, uses as stationary monitoring.If needs are arranged, monitoring equipment also can be installed in the car, uses as mobile radio station, perhaps is made into the hand-hold type monitoring equipment, is handed by the people and carries out work.
Compared with prior art, the utlity model has following advantage:
1. compare with the direction finding navigation system that crosses, time difference location survey only needs the single antenna received signal to get final product, demanding party's complicated array antenna system in measuring not, and the easier design of hardware realizes comparatively speaking; Compare with interference analysis equipment with the field intensity navigation system, time difference location survey does not need expensive spectral characteristic parameter measurement equipment, only needs the low-cost time accurately to measure accessory.
2. to locate anti-NLOS channel circumstance ability stronger the time difference; Time difference location estimation can be handled the spread-spectrum signal of low signal-to-noise ratio owing to the relevant accumulation of itself, and signal bandwidth is wide more, and its precision will be high more; And the influence that the multipath that time difference location estimation is not existed by radio propagation disturbs is not subjected to the influence of radio signal power and length.
3. native system is the product of time difference location technology and the combination of interference analysis technology, and it is compared with other hybrid technologies, and advantage is:
Can carry out analysis and location simultaneously to the interference signal of catching;
No matter interference signal length power, as long as be identified, total energy forms certain lookup result;
Center processing device is according to the task setting, control monitoring equipment operating state, and automatic conversion work state of cooperative system and synchronous working are collected the data that monitoring equipment obtains automatically and are handled, and report the result automatically after finishing the work.
In sum, technique effect of the present utility model is as follows:
Based on the system of time difference location technology, cost is lower relatively, volume is littler, be easy to networking;
Time difference algorithm for estimating other location estimation algorithms relatively wants much simple;
System equipment based on time difference location technology is easy to carry, and applying flexible is convenient, can dispose nearby;
Based on the system of time difference location technology to echo signal respond into the power height, Here it is searches the basic of interference source fast;
The location technology system easily holds the measurement accuracy of echo signal time of advent based on the time difference, and therefore the fuzzy region of location is little, the accuracy height.
Based on the system of time difference location technology can place, location interference source area of space (longitude and latitude and height); Other localization methods can only be oriented plane domain (longitude and latitude).
The utility model is mainly used in electronic information technical field, and especially industry such as radio monitoring, electronic countermeasures has very high practical value.
Description of drawings
Fig. 1 is a system block diagram of the present utility model.
Fig. 2 is the system block diagram of monitoring equipment in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of radio interference intellectual search system, comprise center processing device, and three monitoring equipments that are positioned at diverse location, specifically, be three monitoring equipments that do not wait with the interference source distance, all monitoring equipments are connected with center processing device by communication network respectively.
Described monitoring equipment comprises signal receiving device, internal control circuit and the PC that is linked in sequence.Wherein, signal receiving device is unidirectional reception antenna; Internal control circuit comprises A/D modular converter, DDC controller, Comprehensive Control module and DSP, after external signal is received by signal receiving device, transfer to the A/D modular converter in the internal control circuit, carrying out digital-to-analogue conversion handles, after handling through DDC controller, Comprehensive Control module and DSP then, enter PC, the data after PC will be handled transfer to center processing device from communication network, carry out time difference localization process for it.
Described Comprehensive Control module also is connected with GPS and time base system, and the clock sync signal that GPS and time base system send in real time enters A/D modular converter and DDC controller through the Comprehensive Control module, passes through DSP and PC again, transfers to center processing device.Whole system has realized the consistency on the clock by the clock sync signal of real-time transmission.
Under normal circumstances, be communicated with by communication network between center processing device and the monitoring equipment, this makes and has formed a task between the two and automatically perform system.When three monitoring equipments receive the signal that interference source sends by antenna after, according to the collaborative benchmark of accepting and believing, the time numerical value of the same electric wave signal that recorder is arrived, receiving position, signal characteristic and electromagnetic environment change, then relevant information is transferred to center processing device by communication network, the automatic recognition objective signal condition of center processing device, automatically determine to adopt which kind of signal characteristic according to state, issue the collaborative work order automatically as accepting and believing benchmark.
In entire work process, be provided with the very high time base system of temporal resolution between center processing device and the monitoring equipment, guarantee both clock synchronizations, to guarantee locating accuracy.Center processing device can also be controlled monitoring equipment and carry out the task setting; The operating state of timer access, purpose monitoring equipment; According to task automatic conversion work state of cooperative system and synchronous working are set; The data that the collection monitoring equipment obtains are also handled, and report the result automatically after finishing the work, and simultaneously, storage initial data and result form formative form.
On the other hand, in center processing device, also establish the interference signal location model and the interference signal analytical model of various typical environment, center processing device is behind the location of finishing an interference source, discs is carried out with processing procedure and result in the capital, and revise original location model and analytical model automatically, thereby produce new more accurate in locating model and analytical model, make center processing device form self-learning capability, reach the purpose that improves constantly the efficient of searching interference source.
Claims (6)
1. a radio interference intellectual search system is characterized in that, comprises center processing device, and at least three monitoring equipments that are positioned at diverse location, and all monitoring equipments are connected with center processing device by communication network respectively.
2. a kind of radio interference intellectual search according to claim 1 system is characterized in that described monitoring equipment comprises signal receiving device, internal control circuit and the PC that is linked in sequence.
3. a kind of radio interference intellectual search according to claim 2 system is characterized in that described signal receiving device is an antenna.
4. a kind of radio interference intellectual search according to claim 2 system, it is characterized in that, described internal control circuit comprises A/D modular converter, DDC controller, Comprehensive Control module and DSP, external signal enters monitoring equipment by signal receiving device, successively by A/D modular converter, DDC controller, Comprehensive Control module and DSP, arrive PC, the data after handling through PC transfer to center processing device from communication network.
5. a kind of radio interference intellectual search according to claim 4 system is characterized in that described center processing device is sent to DSP, DDC controller and Comprehensive Control module with assignment instructions respectively through PC in real time by communication network.
6. a kind of radio interference intellectual search according to claim 4 system, it is characterized in that, described monitoring equipment also is provided with GPS and time base system, the clock sync signal that GPS and time base system send enters A/D modular converter and DDC controller respectively by the Comprehensive Control module, and inputing to PC by DSP, PC transfers to center processing device with clock sync signal from communication network.
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| CN2010201535769U CN201656990U (en) | 2010-04-08 | 2010-04-08 | Intelligent radio interference search system |
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| CN2010201535769U CN201656990U (en) | 2010-04-08 | 2010-04-08 | Intelligent radio interference search system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694607A (en) * | 2011-03-25 | 2012-09-26 | 北京海曼无限信息技术有限公司 | Networked software radio signal monitoring method aiming at mobile interference source and system thereof |
| CN103019172A (en) * | 2012-11-06 | 2013-04-03 | 西华大学 | Self-organizing radio monitoring system and method |
| CN103138851A (en) * | 2011-11-28 | 2013-06-05 | 孟宝宏 | Mobile electromagnetic propagation simulation platform and method |
| CN103458448A (en) * | 2012-06-05 | 2013-12-18 | ***通信集团公司 | Method and device for diagnosing communication network fault |
| CN105738867A (en) * | 2016-01-31 | 2016-07-06 | 吉林省广播电视研究所(吉林省新闻出版***科技信息中心) | Illegal radio station rapid positioning and monitoring method adopting high-precision clock |
| CN106953701A (en) * | 2017-03-10 | 2017-07-14 | 广东雅达电子股份有限公司 | A kind of Internet of Things radio interference source measuring system and method |
| CN108833027A (en) * | 2018-07-23 | 2018-11-16 | 公安部第研究所 | A kind of automobile interference signal monitoring system |
| CN108828515A (en) * | 2018-07-05 | 2018-11-16 | 上海歌尔泰克机器人有限公司 | A kind of localization method, server, monitoring station and the system of unmanned aerial vehicle (UAV) control device |
| CN109089311A (en) * | 2018-08-09 | 2018-12-25 | 广州瀚信通信科技股份有限公司 | A kind of external interference source positioning system |
-
2010
- 2010-04-08 CN CN2010201535769U patent/CN201656990U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694607A (en) * | 2011-03-25 | 2012-09-26 | 北京海曼无限信息技术有限公司 | Networked software radio signal monitoring method aiming at mobile interference source and system thereof |
| CN103138851A (en) * | 2011-11-28 | 2013-06-05 | 孟宝宏 | Mobile electromagnetic propagation simulation platform and method |
| CN103458448A (en) * | 2012-06-05 | 2013-12-18 | ***通信集团公司 | Method and device for diagnosing communication network fault |
| CN103019172A (en) * | 2012-11-06 | 2013-04-03 | 西华大学 | Self-organizing radio monitoring system and method |
| CN105738867A (en) * | 2016-01-31 | 2016-07-06 | 吉林省广播电视研究所(吉林省新闻出版***科技信息中心) | Illegal radio station rapid positioning and monitoring method adopting high-precision clock |
| CN106953701A (en) * | 2017-03-10 | 2017-07-14 | 广东雅达电子股份有限公司 | A kind of Internet of Things radio interference source measuring system and method |
| CN106953701B (en) * | 2017-03-10 | 2018-03-30 | 广东雅达电子股份有限公司 | A kind of Internet of Things radio interference source measuring system and method |
| CN108828515A (en) * | 2018-07-05 | 2018-11-16 | 上海歌尔泰克机器人有限公司 | A kind of localization method, server, monitoring station and the system of unmanned aerial vehicle (UAV) control device |
| CN108833027A (en) * | 2018-07-23 | 2018-11-16 | 公安部第研究所 | A kind of automobile interference signal monitoring system |
| CN109089311A (en) * | 2018-08-09 | 2018-12-25 | 广州瀚信通信科技股份有限公司 | A kind of external interference source positioning system |
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Granted publication date: 20101124 Termination date: 20130408 |