CN201919000U - Water wireless communication monitoring and direction finding system - Google Patents
Water wireless communication monitoring and direction finding system Download PDFInfo
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- CN201919000U CN201919000U CN2010206837638U CN201020683763U CN201919000U CN 201919000 U CN201919000 U CN 201919000U CN 2010206837638 U CN2010206837638 U CN 2010206837638U CN 201020683763 U CN201020683763 U CN 201020683763U CN 201919000 U CN201919000 U CN 201919000U
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Abstract
The utility model relates to a water wireless communication monitoring and direction finding system, which is characterized by comprising a vertically polarized monitoring and direction finding antenna array, a five-channel signal switching module, an amplifier module, a five-channel receiver, a DSP (digital signal processing) module, a computer, a monitoring and direction finding controller, a 3G (third generation telecommunication) antenna, a station antenna, a 3G router, a data transmission station, a switch, an electronic compass, a GPS (global positioning system) module and a GPS antenna. The water wireless communication monitoring and direction finding system has the advantages that operating frequency range is 30MHz-500MHz for better searching of interfering signals, direction finding for coherent waves is realized, simultaneous direction finding and digital ultrahigh definition direction finding of a plurality of transmitting signals of the same frequency and in different directions are realized, direction finding of digital frequency hopping, spread spectrum and burst signals is achieved, different frequency domains, time domains and modulation domains of five channels can be monitored and measured due to local oscillation of the fine channels, the problem of coupling among antenna array elements is solved, coupling and phase ambiguity among unit antennas are eliminated, and dynamic application range of signal receiving is widened.
Description
Technical field
The utility model relates to a kind of specialized narrowband waterborne (30MHz-500MHz) radio communication monitoring and direction finding system, belong to the radio monitoring technical field.
Background technology
Along with the development of China's shipping cause and the quick growth of trade waterborne, the application of wireless device is more and more, and the disturbed situation of the legitimate correspondence frequency that China's river coastal station uses is more and more serious.Radio monitoring direction-finding system all is based on the continental rise platform that builds in the city basically both at home and abroad at present, land wireless communication signals or broadcast television signal are carried out monitoring and direction-finding, and existing domestic and international radio monitoring and direction-finding equipment characteristic is one, frequency coverage is wide, system complex, cost an arm and a leg; Two, based on continental rise platform or vehicle-mounted, and ship-borne equipment has its special platform, and three-dimensional motion has improved specification requirement and difficulty to monitoring and direction-finding equipment; Three, the present monitoring and direction-finding equipment monitoring and direction finding system comprehensive integrated waterborne of not combining closely with electronic chart; Four, existing equipment adopts the multiple means networking in the wire/wireless, and monitoring equipment waterborne can only use data radio station communication and transfer of data at land-based area far away, and the reliability of monitoring equipment networking, fail safe, anti-interference and error correcting capability etc. require higher.Therefore existing radio monitoring and direction-finding equipment can not comprehensively satisfy the actual needs of relevant departments' radio monitoring task waterborne.Therefore need a monitoring and direction-finding of realizing wireless communication signal waterborne based on the radio monitoring direction-finding system waterborne of boat-carrying.
Summary of the invention
The utility model proposes a kind of radio monitoring direction-finding system of being absorbed in the direction finding of maritime radiocommunication signal monitoring.It is intended to comprehensively satisfy the actual needs of relevant departments' radio monitoring task waterborne, can be used for reception, measurement, analysis, identification, monitoring, direction finding location, data processing and the transmission of radio signal, concrete function comprises: the processing of radio monitoring, direction-finding station, monitoring and direction-finding data and preservation, real-time signal analysis, nearly land-based area commander controlled function, nearly land-based area movements control center function.
Technical solution of the present utility model: it is characterized in that first signal output part, secondary signal output, the 3rd signal output part, the 4th signal output part, the 5th signal output part of perpendicular polarization monitoring and direction-finding antenna array and five-way road signal handover module first signal input part, secondary signal input, the 3rd signal input part, the 4th signal input part, the 5th signal input part is corresponding joins; First signal input part, secondary signal input, the 3rd signal input part, the 4th signal input part of first signal output part of five-way road signal handover module, secondary signal output, the 3rd signal output part, the 4th signal output part, the 5th signal output part and amplifier module, the 5th signal input part is corresponding joins; First signal input part, secondary signal input, the 3rd signal input part, the 4th signal input part of first signal output part of amplifier module, secondary signal output, the 3rd signal output part, the 4th signal output part, the 5th signal output part and five-way road receiver, the 5th signal input part is corresponding joins; First signal input part, secondary signal input, the 3rd signal input part, the 4th signal input part of first signal output part of five-way road receiver, secondary signal output, the 3rd signal output part, the 4th signal output part, the 5th signal output part and DSP processing module, the 5th signal input part is corresponding joins; The control end of first signal output part of monitoring and direction-finding controller and five-way road signal handover module joins; Second output of monitoring and direction-finding controller and the control end of amplifier module join; The self-correcting signal input part of the self-correcting signal output part of five-way road receiver and five-way road signal handover module joins; First output of the signal input part of monitoring and direction-finding controller and computer joins; First signal input part of the signal output part of DSP processing module and computer joins, the secondary signal output of computer and the signal input part of switch join, the signal input part of the signal output part of gps antenna and GPS module joins, the secondary signal input of the signal output part of GPS module and computer joins, the 3rd signal input part of the output of electronic compass and computer joins, the first signal output/input of switch and the signal I/O end of 3G router join, the signal I/O end of the secondary signal output/input of switch and data radio station joins, the signal input part of the signal output part of 3G router and 3G antenna joins, the signal output part of the signal input part of data radio station and radio station antenna joins, corresponding the joining of signal I/O end of the signal output/input of gps antenna and computer.
Advantage of the present utility model: the operating frequency range of native system is 30MHz-500MHz, can better investigate and prosecute interference signal; Adopt Estimation of Spatial Spectrum direction finding system, this system can realize several coherent wave simultaneous direction findings; Can realize simultaneous direction finding that same frequency, a plurality of different directions are transmitted; Realize digital super-resolution direction finding; To digital frequency hopping, spread spectrum, burst signal direction finding; During measurement, five passages are measured because of the monitoring that respectively has self local oscillator can measure different frequency domains, time domain and modulation domain simultaneously, are equivalent to five monitoring receivers, have strengthened the ability of spectrum management and monitoring greatly.In addition, native system adopts backoff algorithm, has well solved ship-borne equipment on the water because the monitoring and direction-finding difficult problem under the multifreedom motion condition.Therefore native system can be searched interference source more accurately, for relevant radio control department provides more sound radio monitoring direction-finding system equipment, gets rid of the interference of maritime radiocommunication frequency, purifies electromagnetic environment, safeguards marine communication navigation order.This system hardware part adopts comprehensive integrated design, intermediate-freuqncy signal DSP technology and modular combination, and configuration is succinct practical; Built-in embedded computer system, compact conformation is light; Adopt the light-duty passive correlation interferometer direction-finding antenna array of formula of moving, solved the mutual coupling problem between each bay well, got rid of coupling and phase ambiguity between element antenna; Adopted have amplification, the amplifier of straight-through, three kinds of functions of decay, enlarged the dynamic application scope of received signal.
Description of drawings:
Accompanying drawing 1 is the utility model embodiment electricity theory diagram.
Accompanying drawing 2 perpendicular polarization monitoring and direction-finding antenna schematic diagrames.
Accompanying drawing 3 five-way road signal handover module electrical schematic diagrams.
Accompanying drawing 4 amplifiers electricity theory diagram.Accompanying drawing 5 monitoring and direction-finding controllers electricity theory diagram.
Accompanying drawing 6 is DSP processing module electricity theory diagrams.
Among the figure 1 is perpendicular polarization monitoring and direction-finding antenna array, the 2nd, five-way road signal handover module, the 3rd, amplifier module, the 4th, five-way road receiver, the 5th, DSP processing module, the 6th, computer, the 7th, monitoring and direction-finding controller, the 8th, 3G antenna, the 9th, radio station antenna, the 10th, 3G router, the 11st, data radio station, the 12nd, switch, the 13rd, power module, the 14th, electronic compass, the 15th, GPS module, the 16th, gps antenna.
Embodiment:
Contrast accompanying drawing 1, its structure are first signal output part, secondary signal output, the 3rd signal output part, the 4th signal output part, the 5th signal output part of perpendicular polarization monitoring and direction-finding antenna array 1 with first signal input part, secondary signal input, the 3rd signal input part, the 4th signal input part of five-way road signal handover module 2, the 5th signal input part is corresponding joins; First signal input part, secondary signal input, the 3rd signal input part, the 4th signal input part of first signal output part of five-way road signal handover module 2, secondary signal output, the 3rd signal output part, the 4th signal output part, the 5th signal output part and amplifier module 3, the 5th signal input part is corresponding joins; First signal input part, secondary signal input, the 3rd signal input part, the 4th signal input part of first signal output part of amplifier module 3, secondary signal output, the 3rd signal output part, the 4th signal output part, the 5th signal output part and five-way road receiver 4, the 5th signal input part is corresponding joins; First signal input part, secondary signal input, the 3rd signal input part, the 4th signal input part of first signal output part of five-way road receiver 4, secondary signal output, the 3rd signal output part, the 4th signal output part, the 5th signal output part and DSP processing module 5, the 5th signal input part is corresponding joins; The control end of first signal output part of monitoring and direction-finding controller 7 and five-way road signal handover module 2 joins; Second output of monitoring and direction-finding controller and the control end of amplifier module 3 join; The self-correcting signal input part of the self-correcting signal output part of five-way road receiver 4 and five-way road signal handover module 2 joins; First output of the signal input part of monitoring and direction-finding controller 7 and computer 6 joins; First signal input part of the signal output part of DSP processing module 5 and computer 6 joins, the secondary signal output of computer 6 and the signal input part of switch 12 join, the signal input part of the signal output part of gps antenna 16 and GPS module 15 joins, the secondary signal input of the signal output part of GPS module 15 and computer 6 joins, the 3rd signal input part of the output of electronic compass 14 and computer 6 joins, the first signal output/input of switch 12 and the signal I/O end of 3G router one 0 join, the signal I/O end of the secondary signal output/input of switch 12 and data radio station 11 joins, the signal input part of the signal output part of 3G router one 0 and 3G antenna 8 joins, the signal output part of the signal input part of data radio station 11 and radio station antenna 9 joins, corresponding the joining of signal I/O end of the signal output/input of gps antenna 16 and computer 6.
Contrast accompanying drawing 2, its structure is a perpendicular polarization monitoring and direction-finding antenna array, be made up of five pairs of retractable passive Vertically Polarized Dipoles (diameter 16mm), working frequency range is 30MHz～500MHz, launches during work, the about 1500mm of array diameter, the about 800mm of unit dipole length, the upper end is equipped with lightning rod, and the antenna array total height is 1600mm, impedance is 50 Ω, and interface is a N type socket.
Contrast accompanying drawing 3, five-way road signal handover module 2, operating frequency is 30MHz～500MHz, and 5 inputs, 5 outputs, 1 self-correcting signal input part, 1 control end are arranged.Its operation principle be when monitoring and direction-finding controller control V1 add+the 12V electricity time, diode D1～D3 conducting, self-correcting signal import this road path, the self-correcting signal can be exported from signal output part; Control V2 when the monitoring and direction-finding controller to add+when 12V was electric, diode D4～D6 conducting, aerial signal imported this road path, and aerial signal can be exported from signal output part.
Contrast accompanying drawing 4, amplifier module comprises five broadband low noise three function amplifiers, operating frequency is 30MHz～500MHz, has amplification, straight-through, three kinds of functions of decay, in use according to actual needs by software set.Respectively to handling from Phase Processing device module 5 road signals.They respectively have 1 control/feeder ear, 1 input, 1 output.Amplifier is made up of A high frequency relay, B high frequency relay, amplifying circuit, attenuator circuit and power supply, the amplifier tube (model ERA-51SM) in high frequency relay (model RF303-12), the amplifier.+ 12V power supply is added to respectively on A high frequency relay and the B high frequency relay by software control.When the A high frequency relay powers up, and the B high frequency relay is not when powering up, and input signal obtains linear amplification behind amplifying circuit, again through the straight-through part output of B high frequency relay.Be " amplification ".When the A high frequency relay does not power up, and the B high frequency relay is when powering up, and input signal arrives the attenuator circuit of B high frequency relay after the straight-through part of A high frequency relay, output after decaying.Be " decay ".When A high frequency relay and B high frequency relay did not power up, input signal was through the straight-through part output of A high frequency relay and B high frequency relay.Be " leading directly to ".So this amplifier has " lead directly to, amplify, decay " three functions.
Five-way road receiver 4 carries out frequency conversion output digital medium-frequency signal to the received on-air radio signal of telecommunication of direction estimation antenna array, delivers to DSP module 5 again and handles.Select the digital five channel monitoring direction-finding receivers of J067 of Jiujiang City, Jiangxi Province 713 factories in the present embodiment for use, carry out the monitoring and the direction finding of space spectrum estimation ultra-resolution rate of five channels.It is made up of five plate card type receivers, adopts pci bus structure and modularized design, and an integrated circuit board is exactly a receive channel, integrated circuit board be inserted in the PCI slot 19 " in the standard PC case, fix with press strip.When system during in direction finding, five channel receivers are worked simultaneously, shared same local vibration source, and phase equalization is good, has guaranteed the high accuracy of space spectrum estimation ultra-resolution rate direction-finding system.And when not direction finding of system, can automatically switch to monitoring by software again and measure, carry out multichannel with the signal from the monitoring and direction-finding antenna array of opposing and handle respectively, the monitoring that adapts to different frequency domains, modulation domain, time domain is measured, really accomplish dual-use, make full use of resource.
Contrast accompanying drawing 5, the monitoring and direction-finding controller has 2 outputs, 1 control end.First output has 1 output interface, connects the control end of amplifier; Second output has 5 output interfaces, connects the control end of Phase Processing device.1 control termination computer 6 is used for the control command of receiving computer.Its operation principle be 5 output output-12V ,+12V, 0V voltage come control amplifier to switch between " decay, amplify, straight-through " three kinds of states; Come the control phase processor whether to carry out Phase Processing by the break-make of control+12V power supply.The monitoring and direction-finding controller mainly is made up of single-chip microcomputer, relay, and single-chip microcomputer receives the operating state that corresponding pin output high-low level comes control relay after the instruction of upper computer software, thus realize output-12V ,+the voltage output of 12V, 0V.
Contrast accompanying drawing 6, the DSP processing module is to handling from the digital medium-frequency signal of five-way road receiver 4, comprise sampling, demodulation, decoding and A/D conversion etc., output comprises that information to computers 6 such as signal frequency, amplitude, frequency deviation, percentage modulation bandwidth, level handle.It mainly is made up of passage digitlization processing section, synchronized sampling clock signal generation veneer, backboard.Wherein passage digitlization processing section comprises 5 passages processing veneers and a synchronized sampling clock generation plate, and the storage that major function provides synchronized sampling clock, data preliminary treatment and the data of 5 passages sends; Backboard is the motherboard of each veneer of communication digitlization processing section, is responsible for that each channel data is carried out frame and handles, carries out exchanges data with computer.
Computer 6 is industrial control computer (ADVANTECH IPC-610), it has, and the speed of service is fast, capacity is big, reliable and stable, can expand, characteristics such as anti-seismic performance is good.It is as the carrier of application software, except executive program (comprise storage, print), also lot of data, audio frequency, video etc. are handled, it is by handling the mass data information that receives from bay, adopt advanced statistic algorithm---multiple signal classification (MUSIC) algorithm, thereby draw the orientation of signal.In the direction finding of space spectrum estimation ultra-resolution rate, measure the signal voltage that institute might bay receives, production measurement covariance matrix R, this matrix is used for differentiating the cochannel component of received signal.The process of MUSIC algorithm is to calculate covariance matrix R earlier, R is carried out feature decomposition obtain its characteristic value and characteristic vector.Can determine the quantity of signal source according to characteristic value, utilize the signal subspace formed by characteristic vector and the orthogonality relation of noise subspace, two sub spaces are carried out suitable processing, determine the arrival bearing of radio signal.Super-resolution direction-finding uses the interpolation orientation values to calculate a plurality of azimuths, and this value generates according to the bearing calibration vector that the signal subspace with measurement covariance matrix R production mates most.
Claims (5)
1. radio communication monitoring and direction finding system waterborne, it is characterized in that first signal output part, secondary signal output, the 3rd signal output part, the 4th signal output part, the 5th signal output part of perpendicular polarization monitoring and direction-finding antenna array and five-way road signal handover module first signal input part, secondary signal input, the 3rd signal input part, the 4th signal input part, the 5th signal input part is corresponding joins; First signal input part, secondary signal input, the 3rd signal input part, the 4th signal input part of first signal output part of five-way road signal handover module, secondary signal output, the 3rd signal output part, the 4th signal output part, the 5th signal output part and amplifier module, the 5th signal input part is corresponding joins; First signal input part, secondary signal input, the 3rd signal input part, the 4th signal input part of first signal output part of amplifier module, secondary signal output, the 3rd signal output part, the 4th signal output part, the 5th signal output part and five-way road receiver, the 5th signal input part is corresponding joins; First signal input part, secondary signal input, the 3rd signal input part, the 4th signal input part of first signal output part of five-way road receiver, secondary signal output, the 3rd signal output part, the 4th signal output part, the 5th signal output part and DSP processing module, the 5th signal input part is corresponding joins; The control end of first signal output part of monitoring and direction-finding controller and five-way road signal handover module joins; Second output of monitoring and direction-finding controller and the control end of amplifier module join; The self-correcting signal input part of the self-correcting signal output part of five-way road receiver and five-way road signal handover module joins; First output of the signal input part of monitoring and direction-finding controller and computer joins; First signal input part of the signal output part of DSP processing module and computer joins, the secondary signal output of computer and the signal input part of switch join, the signal input part of the signal output part of gps antenna and GPS module joins, the secondary signal input of the signal output part of GPS module and computer joins, the 3rd signal input part of the output of electronic compass and computer joins, the first signal output/input of switch and the signal I/O end of 3G router join, the signal I/O end of the secondary signal output/input of switch and data radio station joins, the signal input part of the signal output part of 3G router and 3G antenna joins, the signal output part of the signal input part of data radio station and radio station antenna joins, corresponding the joining of signal I/O end of the signal output/input of gps antenna and computer.
2. radio monitoring direction-finding system waterborne according to claim 1, it is characterized in that perpendicular polarization monitoring and direction-finding antenna array, by five pairs of retractable passive Vertically Polarized Dipoles, diameter 16mm forms, working frequency range is 30MHz～500MHz, launch the about 1500mm of array diameter, the about 800mm of unit dipole length during work, the upper end is equipped with lightning rod, the antenna array total height is 1600mm, and impedance is 50 Ω, and interface is a N type socket.
3. radio monitoring direction-finding system waterborne according to claim 1, it is characterized in that five-way road signal handover module (2), operating frequency is 30MHz～500MHz, inside comprises a SPL-1/5 power divider, 5 mixers compositions, and 5 inputs, 5 outputs, 1 self-correcting signal input part, 1 control end are arranged.
4. radio monitoring direction-finding system waterborne according to claim 1 is characterized in that the monitoring and direction-finding controller has 2 outputs, and 1 control end, first output have 1 output interface, connect the control end of amplifier; Second output has 5 output interfaces, connects the control end of Phase Processing device, and 1 control termination computer 6 is used for the control command of receiving computer.
5. radio monitoring direction-finding system waterborne according to claim 1, it is characterized in that the DSP processing module is made up of passage digitlization processing section, synchronized sampling clock signal generation veneer, backboard, wherein passage digitlization processing section comprises 5 passages processing veneers and a synchronized sampling clock generation plate, provides the storage of synchronized sampling clock, data preliminary treatment and the data of 5 passages to send; Backboard is the motherboard of each veneer of communication digitlization processing section, is responsible for that each channel data is carried out frame and handles, carries out exchanges data with computer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206837638U CN201919000U (en) | 2010-12-27 | 2010-12-27 | Water wireless communication monitoring and direction finding system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206837638U CN201919000U (en) | 2010-12-27 | 2010-12-27 | Water wireless communication monitoring and direction finding system |
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| CN201919000U true CN201919000U (en) | 2011-08-03 |
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| CN2010206837638U Expired - Lifetime CN201919000U (en) | 2010-12-27 | 2010-12-27 | Water wireless communication monitoring and direction finding system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147456A (en) * | 2010-12-27 | 2011-08-10 | 南京新兴电子系统有限公司 | Maritime radio communication monitoring and direction finding system |
| CN105223539A (en) * | 2015-10-23 | 2016-01-06 | 成都九华圆通科技发展有限公司 | A kind of lift-off interferometer direction finding system |
-
2010
- 2010-12-27 CN CN2010206837638U patent/CN201919000U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147456A (en) * | 2010-12-27 | 2011-08-10 | 南京新兴电子系统有限公司 | Maritime radio communication monitoring and direction finding system |
| CN102147456B (en) * | 2010-12-27 | 2012-11-21 | 南京新兴电子系统有限公司 | Maritime radio communication monitoring and direction finding system |
| CN105223539A (en) * | 2015-10-23 | 2016-01-06 | 成都九华圆通科技发展有限公司 | A kind of lift-off interferometer direction finding system |
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Granted publication date: 20110803 Effective date of abandoning: 20130227 |
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