A kind of high-speed unmanned aerial vehicle telechirics
Technical field
The utility model belongs to wireless communication technique field, is specifically related to a kind of high-speed unmanned aerial vehicle telechirics.
Background technology
High-speed unmanned aerial vehicle telechirics is the important component part of remote probe and control system, completes the remote control to remote equipment, remote measurement, realizes real time monitoring, the record of remote operation to remote equipment and reconnaissance.Can be applicable to unmanned plane, the observing and controlling etc. of unmanned warship and fixing no man's land, application prospect is very extensive.But China relatively lags behind in the research in this field at present, in observing and controlling and information carrying means, there is the technical matterss such as coverage rate is low, " three resist " ability is poor, the rate of information throughput is lower, measuring accuracy is not high, Multi target TT&C scarce capacity.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of high-speed unmanned aerial vehicle telechirics, be intended to solve the technical matterss such as traditional no-manned machine distant control system coverage rate is low, " three resist ", ability was poor, command range is comparatively near, the rate of information throughput is lower, positioning precision is low, Multi target TT&C scarce capacity, have to provide one that coverage rate is high, the high-speed unmanned aerial vehicle telechirics of " three resist " features such as ability is strong, remote control distance is far away, the rate of information throughput is high, measuring accuracy is high, Multi target TT&C ability is strong.
To achieve these goals, the technical solution adopted in the utility model is: a kind of high-speed unmanned aerial vehicle telechirics comprises front end air-borne equipment, rear end land station and communication link.
Described front end air-borne equipment comprises video camera, video camera and image encoder, control command code device is connected, image encoder is connected with baseband synthesizer, baseband synthesizer respectively with differential GPS, airborne sensor, digital modulator is connected, digital modulator is connected with power amplifier by upconverter, dual-mode antenna is connected with low noise amplifier with power amplifier respectively by transmit-receive switch, low noise amplifier is connected with digital demodulator by low-converter, control command code device respectively with digital demodulator, airborne flying control equipment is connected, local oscillation signal source is connected with low-converter with upconverter respectively.
Described rear end land station includes dual-mode antenna, dual-mode antenna is connected with power amplifier, low noise amplifier respectively by transmit-receive switch, power amplifier is connected with digital modulator by upconverter, low noise amplifier is connected with digital demodulator by low-converter, control command code device is connected with digital modulator, manual control platform, digital demodulator is connected with baseband processor, land station's central computer is connected with baseband processor, control command code device, display (electronic chart) respectively, and local oscillation signal source is connected with upconverter, low-converter respectively.
Described communication link comprises land station, satellite relay forwards subsystem, On-Board Subsystem.
Its two parts are coupled together by spread spectrum ripple digital communication technology by the airborne and earth station equipment in front and back end, and after control signal imports front end air-borne equipment into, reallocating completes distant control function to subsystem.Rear end land station uploads the telecommand to unmanned aerial vehicle platform by beyond-the-horizon communication link, instructs the correct in instruction operation of unmanned plane.
The beneficial effects of the utility model:
Owing to being provided with the communication link by satellite relay transponder, so can over the horizon ground remotely pilotless machine;
Owing to being provided with image encoder and baseband processor, so by realtime image data and navigation data and transmission after flying the compression of control data encoding, the transmitting data information in given modulation band-width can be increased.Owing to being provided with differential GPS, so the navigation and positioning accuracy of unmanned plane is high
Owing to being provided with the communication link that pressure spread spectrum digital modulation mode is formed in Ku frequency range, so the rate of information throughput is high, " three resist " ability grow;
Owing to being provided with electronic chart, by three coordinate matching features of internal database, the flight track/real-time coordinates of return unmanned plane transmission and flight attitude are presented on giant-screen, so that the real-time manipulation of the controller of land station.
The utility model achieve the real-time navigation of high-speed unmanned aerial vehicle is located, ground remote control telemetry function, the information back that high-speed transfer is detected by airborne equipment is to earth station system.
Accompanying drawing explanation
Fig. 1, Fig. 2, Fig. 3 are theory diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.A kind of high-speed unmanned aerial vehicle telechirics comprises: front end air-borne equipment, rear end land station and communication link.
Described front end air-borne equipment comprises video camera (1), video camera (1) and image encoder (2), control command code device (12) is connected, image encoder (2) is connected with baseband synthesizer (3), baseband synthesizer (3) respectively with differential GPS (4), airborne sensor (5), digital modulator (6) is connected, digital modulator (6) is connected with power amplifier (8) by upconverter (7), dual-mode antenna (14) is connected with low noise amplifier (9) with power amplifier (8) respectively by transmit-receive switch, low noise amplifier (9) is connected with digital demodulator (11) by low-converter (10), control command code device (12) respectively with digital demodulator (11), airborne flying control equipment (13) is connected, local oscillation signal source (15) is connected with low-converter (10) with upconverter (7) respectively.
Described rear end land station includes dual-mode antenna (1), dual-mode antenna (1) by transmit-receive switch respectively with power amplifier (2), low noise amplifier (12) is connected, power amplifier (2) is connected with digital modulator (4) by upconverter (3), low noise amplifier (12) is connected with digital demodulator (10) by low-converter (11), control command code device (5) and digital modulator (4), manual control platform (6) is connected, digital demodulator (10) is connected with baseband processor (9), land station's central computer (8) respectively with baseband processor (9), control command code device (5), display (electronic chart) (7) are connected, local oscillation signal source (13) respectively with upconverter (3), low-converter (11) is connected.
Described communication link comprises land station, satellite relay forwards subsystem, On-Board Subsystem.
Be located on unmanned plane outside video camera and The Cloud Terrace, the region of unmanned plane process is taken, after land station's remote control, track up is carried out to target area; Power supply is powered to all air environments; Baseband processor carries out base band encoding and decoding process, so that efficient transfer data to shooting information and transducing signal; Digital demodulator carries out carrier modulation to the baseband signal from baseband processor; Power amplifier plays amplifying signal power so that the effect of transmission; Dual-mode antenna carries out spatial to the carrier signal from power amplifier.
Principle of work of the present utility model: high-speed unmanned aerial vehicle telechirics comprises front end air-borne equipment and rear end tracking telemetry and command station two parts.Front end air-borne equipment adopts miniaturization modular composition, and rear end ground observing and controlling station equipment is combined by control operation platform, monitoring and mission control computer, radio frequency unit.Its two parts are coupled together by the pressure Spread Spectrum Digital communication technology by front and back end equipment, after control signal imports front-end equipment into, reallocate and complete the distant control function of unmanned plane to subsystem; Wherein the locating information of front end adopts differential GPS positioning principle navigator fix (namely to send correction by rear end tracking telemetry and command station, by front end receiver its measurement result revised, to obtain accurate positioning result), airborne sensor measuring-signal is by reaching rear end land station under Data-Link, real time position/speed/attitude/the track of unmanned plane and airborne equipment service data, through computer information processing, the vast scale electronic chart of land station display by rear end land station.Rear end land station uploads the telecommand to unmanned aerial vehicle platform by beyond-the-horizon communication link, instructs the correct in instruction operation of unmanned plane; Forward direction telecommand and reverse measurement data, by the transmission of reliable beyond-the-horizon communication link, greatly can be expanded service range and the scope of work of unmanned aerial vehicle platform, promote the efficiency of its reliably working.
The information workflow of link:
A) remote information: ground receiver control station produces forward direction telecommand, by being sent to satellite after land station or the process of repeater satellite ground terminal, unmanned platform data transmission equipment is transmitted to through satellite, directly be sent to the task process computer of unmanned platform after processing in a device, and send to flight control computer or task device by task process computer.B) scouting and telemetry intelligence (TELINT): the reconnaissance that task device obtains and the telemetry intelligence (TELINT) that flight control computer produces are transferred to task process computer, are sent to unmanned platform data transmission equipment by after the multiple connection of task process computer by bus; Or the information obtained separately is directly transferred to data transmission set by different bus by task device, flight control computer and mission computer respectively, carry out multiple connection at data transmission set place.Eventually pass coding, modulation forms back signal transmission, by satellite transponder transmissions to land station, finally send ground receiver control station by after land station's demodulation coding.
The transmission link advantage of native system:
Data transmission system is in the past owing to being subject to the technical limitation such as load-carrying ability, reconnaissance equipment, data processing, modulation and transmission mode, the image being more used for low rate scouts transmission, antijamming capability is also poor, relatively lags behind especially in the large ratio number biography of integrated data information; Native system adopts the means of communication of New Image compression and data compression process mode and spread spectrum transmission, by the large ratio companding communication transfer mode frequently that the TTC channel of native system unmanned plane just can complete under high-speed motion condition, there is antijamming capability strong, transfer rate is fast, and the advantage such as contain much information.
For having stronger load-carrying ability, the dynamic unmanned vehicle of height of the reconnaissance equipments such as photoelectronic imaging, infrared imaging, synthetic aperture radar image-forming can be loaded, information amount will increase greatly, if there is no real-time, reliable, an effective high-rate information transmission approach, the a large amount of surveillance information information obtained cannot be sent to information processing centre and charge center at different levels in real time, the scouting of high dynamically unmanned vehicle and quick response advantage will be reduced.Therefore, the detection of native system, scouting, remote measurement, remote-control data real-time, fast and the anti-interference transmission in broadband be the key link that high dynamically unmanned plane effectively uses.