CN101363887A - Unmanned helicopter-mounted aerial frequency spectrum monitoring system - Google Patents

Unmanned helicopter-mounted aerial frequency spectrum monitoring system Download PDF

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Publication number
CN101363887A
CN101363887A CNA2008101964846A CN200810196484A CN101363887A CN 101363887 A CN101363887 A CN 101363887A CN A2008101964846 A CNA2008101964846 A CN A2008101964846A CN 200810196484 A CN200810196484 A CN 200810196484A CN 101363887 A CN101363887 A CN 101363887A
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finding
self
correcting
winding
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CN101363887B (en
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俞惟铨
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Abstract

The invention provides an unmanned-helicopter-borne air frequency spectrum monitoring system, which comprises an airborne direction-finding antenna array, a portable cabinet and an airborne power supply model. The system is characterized in that high and low terminal electrical rotation switch units, an RF amplifier module, a card direction finding receiver, a direction-finding control processing module and an embedded computer system are disposed inside the portable cabinet. The system has the advantages that the advanced embedded-type integral design, the intermediate frequency signal technique and the modularized combination are adopted, so that the structure is simple and practical; the direction-finding antenna and the card receiver with light weight and small size are equipped, so that the structure is compact and portable; and when the airborne multi-freedom degree rapid movement is carried out or in an air detention transient state, the system can implement the high-precision high-sensitivity detection, the rapid finding, the identification and analysis, the remote control, the automatic task direction-finding, the device running state inquiry, the wireless data transmission and the like.

Description

Unmanned helicopter-mounted aerial frequency spectrum monitoring system
Technical field
What the present invention relates to is unmanned helicopter-mounted aerial frequency spectrum monitoring system, belongs to the array signal digital processing direction finding technology field in the communication technology.
Background technology
Because the surface em circumstance complication, the transmission of ultrashort wave (USW) (VHF/UHF) radio signal is subjected to the influence of landform, atural object, hi-line and industrial traffic etc., causes that travel path is changeable, the not pure and mild phase fluctuation of polarization.And the transmission environment of aerial electric wave is comparatively clean, and aerial monitoring is more much better than the effect of ground monitoring.Therefore, we have proposed the new ideas of " stereoscopic monitoring ", promptly on the basis of ground continental rise stationary monitoring or mobile monitoring, increase airborne aerial monitoring technology means, can realize aerial high-precision monitoring and direction finding location by go up the installation monitoring equipment at certain aircraft (as: depopulated helicopter), to remedy the deficiency of ground monitoring.
Summary of the invention
The objective of the invention is to propose unmanned helicopter-mounted aerial frequency spectrum monitoring system.Light-duty small size direction-finder antenna, plate card type receiver are installed on depopulated helicopter, adopt DSP technology, embedded computer chip and application software, by Remote and wireless data transmission mode, realize some important or special region, place, target and different frequency domain, time domain, modulation domain are carried out aerial high-precision monitoring and direction finding location.
Technical solution of the present invention: its structure comprises airborne direction-finder antenna array and portable cabinet, and the airborne power supply module; The built-in high and low end electricity of wherein portable cabinet is outwarded winding and is closed unit, RF amplifier module, plate card type direction-finding receiver, direction finding control treatment module, embedded computer system; The built-in high and low end electricity of the signal output part of described airborne direction-finder antenna array and portable cabinet first signal input part that closes the unit of outwarding winding joins, the outward winding signal output part that closes the unit and the signal input part of RF amplifier module of high and low end electricity joins, the signal input part of the signal output part of RF amplifier module and plate card type direction-finding receiver joins, the signal output/input end of RF amplifier module and direction finding control treatment module first the I/O end is corresponding joins; The signal I/O end of plate card type direction-finding receiver and corresponding the joining of the first output/input end of embedded computer system; The secondary signal I/O end of direction finding control treatment module and corresponding the joining of secondary signal output/input end of embedded computer system; The airborne power supply module provides working power.
Advantage of the present invention: adopted advanced embedded comprehensive integrated design, intermediate-freuqncy signal DSP technology and modular combination, configuration is succinct practical; Be equipped with light-duty undersized direction-finder antenna and plate card type receiver, compact conformation is light; System can or be detained under the unsteady state in the air in the quick operation of aircraft multiple degrees of freedom, realizes functions such as high precision and high sensitivity investigation, discovery fast, discriminance analysis, Remote, autotask direction finding, equipment running status inquiry, wireless data transmission by specific correction-compensation algorithm software.
Description of drawings
Accompanying drawing 1 is unmanned helicopter-mounted aerial frequency spectrum monitoring system electricity theory diagram.
Accompanying drawing 2 is that high and low end electricity is outwarded winding and closed electric theory diagram.
Accompanying drawing 3 is three function RF amplifiers electricity theory diagrams.
Accompanying drawing 4 is that power divider is the structured flowchart of example with the 1:2 divider.
Accompanying drawing 5 is that airborne direction estimation antenna array lists intention.
Among the figure 1 is airborne direction-finder antenna array, the 2nd, and built-in high and low end electricity is outwarded winding and closed unit, the 3rd, RF amplifier module, the 4th, and plate card type direction-finding receiver, the 5th, direction finding control treatment module, the 6th, embedded computer system, the 7th, airborne power supply module, the 8th, portable cabinet, 9 is five unit vertical polarization passive direction finding antenna arrays (1000MHz-3000MHz); 10 is the active direction estimation antenna array of five unit vertical polarizations (30MHz-1000MHz).
Embodiment
Contrast accompanying drawing 1, its structure comprises airborne direction-finder antenna array 1 and portable cabinet 8, and airborne power supply module 7; Wherein portable cabinet 8 built-in high and low end electricity are outwarded winding and are closed unit 2, RF amplifier module 3, plate card type direction-finding receiver 4, direction finding control treatment module 5, embedded computer system 6; The built-in high and low end electricity of the signal output part of described year direction-finder antenna array 1 and portable cabinet first signal input part that closes unit 2 of outwarding winding joins, the outward winding signal output part that closes unit 2 and the signal input part of RF amplifier module 3 of high and low end electricity joins, the signal input part of the signal output part of RF amplifier module 3 and plate card type direction-finding receiver 4 joins, the signal output/input end of RF amplifier module 3 and direction finding control treatment module 5 first the I/O end is corresponding joins; The signal I/O end of plate card type direction-finding receiver 4 and corresponding the joining of the first output/input end of embedded computer system 6; The secondary signal I/O end of direction finding control treatment module 5 and corresponding the joining of secondary signal output/input end of embedded computer system 6; Airborne power supply module 7 provides working power.
Described airborne direction-finder antenna array 1, dismantled and assembled, can fall to hang bottom at aircraft.Divide height two frequency ranges, each forms the concentric circles battle array by five unit vertical dipoles.The working frequency range of low side antenna array is 30MHz~1000MHz, and (diameter 16mm) forms by the active vertical dipole antenna in Unit five, the about 760mm of array diameter (containing totally-enclosed circular antenna cover), the about 280mm of unit dipole length; The working frequency range of high-end antenna array is 1000MHz~3000MHz, and (diameter 17mm) forms by the passive vertical dipole antenna in Unit five, and the array diameter dwindles to some extent, the about 130mm of unit dipole length.The about 400mm of antenna overall height (containing antenna house), the about 20Kg of gross weight (contain electricity outward winding close etc.), impedance is 50 Ω, interface is a N type socket.
Described high and low end electricity is outwarded winding and is closed unit 2, is divided into the low side electricity according to frequency range and outwards winding and close unit and the high-end electricity unit, pass of outwarding winding.Its tested control and power supply to control treatment module 5.Its low and middle-end electricity frequency of operation of closing the unit of outwarding winding is 30MHz~1000MHz, and inside comprises SW-5/2-ML low side electricity outward winding pass, SPL-1/2 power divider and SPL-1/5 power divider.It is equivalent to a high frequency electronic switch, it has 5 signal input parts, 2 signal output parts, 1 control/power supply port, 1 self-correcting signal input part and 1 self-correcting signal output part, its controlled certain two paths of signals passage (being divided into main road, bypass) and self-correcting signalling channel of getting through simultaneously.The SPL-1/2 power divider is that the self-correcting signal is divided into two-way, and wherein one the tunnel is divided into 5 the tunnel again through the SPL-1/5 power divider, introduces the low side electricity pass of outwarding winding, and is used for the system of 30MHz~1000MHz frequency range work is carried out self-correcting; Another road self-correcting signal is sent to high-end electricity and outwards winding and close in the unit, is used for the self-correcting of high band system.The high-end electricity frequency of operation of closing the unit of outwarding winding is 1000MHz~3000MHz, and inside comprises that the high-end electricity of SW-5/2-MH is outwarded winding and closes and the SPL-1/5 power divider.It also is a high frequency electronic switch, and it has 5 signal input parts, 2 signal output parts, 1 control/power supply port, 1 self-correcting signal input part, its controlled certain two paths of signals passage (being divided into main road, bypass) and self-correcting signalling channel of getting through simultaneously.Outward winding from the low side electricity and to close the road self-correcting signal of telling the unit and behind the SPL-1/5 power divider, be divided into 5 the tunnel, be used for the system of 1000MHz~3000MHz frequency range work is carried out self-correcting.Its principle of work: when control voltage V1, V2 power up diode D 1-3During conducting, just can pass to node A, when control voltage V2, V3 power up diode D from the signal of airborne direction-finder antenna array 1 4-6During conducting, the self-correcting signal just can pass to node A, powers up when controlling voltage V4, V5, and during diode D7-9 conducting, the signal of node A just can be exported from main road; Power up when controlling voltage V6, V7, during diode D10-12 conducting, the signal of node A just can be exported (as shown in Figure 2) from auxiliary route.
RF amplifier module 3 comprises two broadband low noise three function amplifiers, and frequency of operation is 30MHz~3000MHz, has amplification, straight-through, three kinds of functions of decay, in use according to actual needs by software set.Respectively the main and auxiliary road signal that closes unit 2 of outwarding winding from electricity is handled.They respectively have 1 control/feeder ear, 1 input end, 1 output terminal.Amplifier is made up of first high frequency relay, second 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 first high frequency relay and second high frequency relay by software control.When first high frequency relay powers up, and second high frequency relay is not when powering up, and input signal obtains linear amplification behind amplifying circuit, again the second straight-through part output through high frequency relay.Be " amplification ".When first high frequency relay does not power up, and second high frequency relay is when powering up, and input signal arrives the attenuator circuit of second high frequency relay after the straight-through part of first high frequency relay, output after decaying.Be " decay ".When first high frequency relay and second high frequency relay did not power up, input signal was through the straight-through part output of first high frequency relay and second high frequency relay.Be " leading directly to ".So this amplifier has " lead directly to, amplify, decay " three functions.
Direction-finding receiver 4 is made up of two plate card type direction-finding receivers (J0601).Signal from RF amplifier module 3 is carried out frequency conversion, demodulation, decoding (can monitor measurement to the signal of different frequency domains, modulation domain, time domain), and output comprises the digital monitoring information of frequency, amplitude, frequency deviation, percentage modulation bandwidth, level, spectral image etc. and comprises signal phase and the digital direction-finding signal of amplitude characteristic.It is by serial ports and computing machine communication.Select the digital direction-finding receiver of J0601 of Jiujiang City, Jiangxi Province 713 factories in the present embodiment for use, this receiver is a plate card type, adopts pci bus structure and modular design, and a template is exactly a receiving cable, adopts the two boards card can form double-channel.The receiver template can be inserted in the computing machine that has the PCI slot, fixes with press strip, constitutes the virtual instrument platform of advanced embedded receiver computer combined.
Described direction finding control treatment module 5 (model is DFC 050E) is system's each several part control drive unit and dc power supply unit.Processing module is carried out communication by interface and embedded computer system 6, accepts the steering order of computing machine, electricity is outwarded winding closed unit, RF amplifier module, direction-finding receiver etc. and control, and system is monitored and direction finding according to software program.
Described embedded computer system 6.Built-in embedded computer is the ARK-3380 that grinds magnificent company, and direction finding software is cured in the embedded computer, thereby the reliability of equipment operation is enhanced, and volume, power consumption also reduce greatly simultaneously.Hardware " house dog " resets rapidly in the time of can or cutting off the power supply under abnormality and starts to running state of programs fast.Built-in embedded Linux system can be so that system software kernel capacity reduces greatly, and hardware configuration is reduced to appropriateness.Application software is for the airborne multiple degrees of freedom rapid movement of my company research and development or be detained special intelligent monitoring and direction-finding software under the unsteady state in the air, and it has complete investigation function of airborne monitoring and direction-finding equipment and signal analysis and processing function.This computer system is except executive routine (comprise storage, print), also lot of data, audio frequency, video etc. are handled, it is by carrying out complicated statistic algorithm and motion state correction-compensation algorithm (as auto-correlation algorithm, phase-shift detection algorithm, HILBERT conversion, fft algorithm etc.) to the information data of a large amount of collections, thereby draws the orientation of signal.
Described power module 7 is SPU, the 220VAC alternating current can be converted to direct current.Also be equipped with electric battery.
System adopts wireless transmission, and the transmission of 5.4GHz radio spread spectrum communication is equipped with the dull and stereotyped transmit receive antenna of small size, ground is equipped with the theaomni-directional transmission receiving antenna on the aircraft.

Claims (3)

1, unmanned helicopter-mounted aerial frequency spectrum monitoring system is characterized in that the built-in high and low end electricity of portable cabinet is outwarded winding to close unit, RF amplifier module, plate card type direction-finding receiver, direction finding control treatment module, embedded computer system; The built-in high and low end electricity of the signal output part of described year direction-finder antenna array and portable cabinet first signal input part that closes the unit of outwarding winding joins, the outward winding signal output part that closes the unit and the signal input part of RF amplifier module of high and low end electricity joins, the signal input part of the signal output part of RF amplifier module and plate card type direction-finding receiver joins, the signal output/input end of RF amplifier module and direction finding control treatment module first the I/O end is corresponding joins; The signal I/O end of plate card type direction-finding receiver and corresponding the joining of the first output/input end of embedded computer system; The secondary signal I/O end of direction finding control treatment module and corresponding the joining of secondary signal output/input end of embedded computer system; The airborne power supply module provides working power.
2, unmanned helicopter-mounted aerial frequency spectrum monitoring system according to claim 1, it is characterized in that described airborne direction-finder antenna array is falling to hang bottom at aircraft, divide height two frequency ranges, each forms the concentric circles battle array by five unit vertical dipoles, the working frequency range of its low and middle-end antenna array is 30MHz~1000MHz, form diameter 16mm by the active vertical dipole antenna in Unit five; Array diameter 760mm contains totally-enclosed circular antenna cover, unit dipole length 280mm; The working frequency range of high-end antenna array is 1000MHz~3000MHz, is made of diameter 17mm the passive vertical dipole antenna in Unit five; The array diameter dwindles to some extent, unit dipole length 130mm; Antenna overall height 400mm contains antenna house, and impedance is 50 Ω, and interface is a N type socket.
3, unmanned helicopter-mounted aerial frequency spectrum monitoring system according to claim 1, it is characterized in that the described high and low end electricity unit, pass of outwarding winding, being divided into the low side electricity according to frequency range outwards winding and closes unit and the high-end electricity unit, pass of outwarding winding, tested control and power supply to control treatment module; Its low and middle-end electricity frequency of operation of closing the unit of outwarding winding is 30MHz~1000MHz, and inside comprises SW-5/2-ML low side electricity outward winding pass, SPL-1/2 power divider and SPL-1/5 power divider; It is equivalent to a high frequency electronic switch, it has 5 signal input parts, 2 signal output parts, 1 control/power supply port, 1 self-correcting signal input part and 1 self-correcting signal output part, its controlled main road, bypass two paths of signals passage and self-correcting signalling channel of getting through simultaneously; The SPL-1/2 power divider is that the self-correcting signal is divided into two-way, and wherein one the tunnel is divided into 5 the tunnel again through the SPL-1/5 power divider, introduces the low side electricity pass of outwarding winding, and is used for the system of 30MHz~1000MHz frequency range work is carried out self-correcting; Another road self-correcting signal is sent to high-end electricity and outwards winding and close in the unit, is used for the self-correcting of high band system; The high-end electricity frequency of operation of closing the unit of outwarding winding is 1000MHz~3000MHz, and inside comprises that the high-end electricity of SW-5/2-MH is outwarded winding and closes and the SPL-1/5 power divider; It also is a high frequency electronic switch, and it has 5 signal input parts, 2 signal output parts, 1 control/power supply port, 1 self-correcting signal input part, its controlled main road, bypass two paths of signals passage and self-correcting signalling channel of getting through simultaneously; Outward winding from the low side electricity and to close the road self-correcting signal of telling the unit and behind the SPL-1/5 power divider, be divided into 5 the tunnel, be used for the system of 1000MHz~3000MHz frequency range work is carried out self-correcting.
CN2008101964846A 2008-09-10 2008-09-10 Unmanned helicopter-mounted aerial frequency spectrum monitoring system Expired - Fee Related CN101363887B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105223540A (en) * 2015-10-23 2016-01-06 成都九华圆通科技发展有限公司 A kind of aircraft monitoring and direction finding system
CN105372472A (en) * 2014-08-14 2016-03-02 阿瓦隆有限责任公司 Unmanned aerial device and method for performing a lightning protection measurement at a wind turbine
CN105403855A (en) * 2015-10-23 2016-03-16 成都九华圆通科技发展有限公司 Monitoring direction finding system based on aircraft-borne direction finding device
CN106330355A (en) * 2016-11-24 2017-01-11 成都洛兰特科技有限公司 Flat-plate-type integrated radio monitoring and direction finding device
CN106872946A (en) * 2015-12-10 2017-06-20 罗伯特·博世有限公司 Method for running the radar equipment for motor vehicle
CN107204107A (en) * 2017-04-21 2017-09-26 杭州昊舜视讯科技有限公司 A kind of method and system by unmanned plane real-time Transmission frequency spectrum
JP2018048852A (en) * 2016-09-20 2018-03-29 カシオ計算機株式会社 Direction estimation device, direction estimation method, flying device, flying method, and program

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105372472A (en) * 2014-08-14 2016-03-02 阿瓦隆有限责任公司 Unmanned aerial device and method for performing a lightning protection measurement at a wind turbine
CN105223540A (en) * 2015-10-23 2016-01-06 成都九华圆通科技发展有限公司 A kind of aircraft monitoring and direction finding system
CN105403855A (en) * 2015-10-23 2016-03-16 成都九华圆通科技发展有限公司 Monitoring direction finding system based on aircraft-borne direction finding device
CN106872946A (en) * 2015-12-10 2017-06-20 罗伯特·博世有限公司 Method for running the radar equipment for motor vehicle
CN106872946B (en) * 2015-12-10 2022-11-15 罗伯特·博世有限公司 Method for operating a radar system for a motor vehicle
JP2018048852A (en) * 2016-09-20 2018-03-29 カシオ計算機株式会社 Direction estimation device, direction estimation method, flying device, flying method, and program
CN106330355A (en) * 2016-11-24 2017-01-11 成都洛兰特科技有限公司 Flat-plate-type integrated radio monitoring and direction finding device
CN106330355B (en) * 2016-11-24 2018-10-12 成都洛兰特科技有限公司 Flat integrated wireless pyroelectric monitor direction-finding device
CN107204107A (en) * 2017-04-21 2017-09-26 杭州昊舜视讯科技有限公司 A kind of method and system by unmanned plane real-time Transmission frequency spectrum
CN107204107B (en) * 2017-04-21 2020-05-08 杭州昊舜视讯科技有限公司 Method and system for transmitting frequency spectrum in real time through unmanned aerial vehicle

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Denomination of invention: Unmanned helicopter-mounted aerial frequency spectrum monitoring system

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