CN103220268A - Airborne ultrashort wave multimedia communication system - Google Patents
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Abstract
An airborne ultrashort wave multimedia communication system comprises a communication central station and a plurality of client terminal stations, wherein the communication central station is communicated with each client terminal station in an ultrashort wave wireless channel two-way mode, the communication central station, the client terminal stations and ultrashort wave wireless channels are together combined to form a star network framework, the communication central station and the client terminal stations are communicated directly, and the client terminal stations are mutually communicated and connected through the communication central station. The airborne ultrashort wave multimedia communication system is suitable for reliable stable networking communication under the conditions of helicopter airborne high-speed high dynamic and high-complexity terrain environments and supporting a plurality of communication nodes to construct multiple service communications such as networks, supporting images, telephones and data in a star networking mode. The airborne ultrashort wave multimedia communication system can be not only used under certain environments of landing ground of an aerospace engineering returning capsule, but also used under the conditions sun as salvage, mountain area rescuing, real-time reporting of city large-scale activities and competitions and the like.
Description
Technical field
The present invention relates to radio communication, particularly a kind ofly be applicable to helicopter-mounted and support multimedia communication networking, airborne ultra-short wave multimedia communications system.
Background technology
Airborne communication control is meant the electronic equipment that is used for liaison on the aircraft.Mainly comprise aircraft station and interphone.Aircraft station is the main tool of liaison between aircraft and ground, aircraft and naval vessels, aircraft and the aircraft, can be divided into ultrashort wave, shortwave, long wave and super-long wave radio station by wavelength.Ultrashort wave radio set (frequency range is 100～156 megahertzes, 225～400 megahertzes) is installed on all kinds of aircrafts, works in the fone mode usually, is used for the command and guide communication in the horizon range.
Multimedia communication is meant in system or network, the interactive type communication that can provide various ways information synchronization such as multiple media information such as sound, figure, image, data to carry out simultaneously.
Because the most of airborne communication controls that use are such as ultrashort wave radio set at present, the long-distance transmissions of audio frequency only can be provided owing to the restriction of communication bandwidth, limited the use of some special occasions, also need real-time video information and related data support as occasions such as spaceship landing of return capsule, forest fire, rescue at sea, city large-scale activity and scene of the accident commanders, so that the full spectrum information with the scene that can be real-time transfers to measurement and control center and command centre, be leader's decision-making and commander and the live telecast guarantee that provides the necessary technical.Simultaneously, the multimedia communication networking technology is merged in the airborne communication control, also can be communicating by letter between aerial many helicopters and surface car and personnel and give security, reach the bidirectional information Real-Time Sharing of multi-point.
Disclosed a kind of " machine-carried wireless broadband image transmission system " in the Chinese patent 200610025877.1, this system can carry out wireless transmission by the helicopter carrying, but the business of its support only is the audio frequency and video transmission, and is point-to-point one-way transmission, does not support the two-way networking technology of multiple spot.
Disclosed " a kind of onboard high-speed communication system " in the Chinese patent 200910085603.5 based on the OFDM technology, this system is made of up transmitting terminal and descending receiving terminal, has the excellent results that realizes remote high speed air communications under big Doppler frequency shift rate of change and multi-path environment.But what this system was disclosed mainly is the Channel Modulation demodulation techniques based on the OFDM technology that are used for point-to-point one way data communication, does not involve the two-way group-net communication technology of multiple spot of supporting multimedia service.
Summary of the invention
The present invention proposes a kind of airborne ultra-short wave multimedia communications system, this system is applicable to the reliable and stable group-net communication under the at a high speed high dynamic and high complex-terrain environment of Review for Helicopter, support a plurality of communication nodes with star-like networking mode building network, support multiple business communications such as image, phone, data; This system not only can use under such as aerospace engineering landing of return capsule field environment at some, also can use under the situations such as news report alive such as rescue at sea, mountain area rescue, city large-scale activity and race.
Technical solution of the present invention is as follows:
A kind of airborne ultra-short wave multimedia communications system comprises a message center station equipment and a plurality of client terminal station equipment, uses the two-way communication of ultrashort wave wireless channel between communication report center and each client terminal station, forms the Star Network framework jointly.But direct communication between message center station equipment and the client terminal station can be transmitted the intercommunication interconnection by communication report center between each client terminal station, and a message center station equipment can be set up network with 254 client terminal station equipments simultaneously at most and be connected.Wherein:
Described message center station equipment is made of following functional module:
Image recording machine: obtain on-the-spot raw video signal;
Internet video coding/decoding module: raw video signal encoded and send with the form of IP bag, vision signal after simultaneously the video IP bag decoding of receiving being restored, its adopt MPEG-2, MPEG-4, H.264, AVS and VC-1 etc. diminish the compression coding and decoding of Image Data Compression encoding and decoding standard video, the analog input output interface of module adopts the AV interface, and digital interface adopts 10/100Mbps self adaptation Ethernet interface.
Picture monitor: show the vision signal after recovering, simultaneously the image scene that photographs is monitored;
Telephone set: realize the dialing function, obtain the local voice signal, recover the remote speech signal;
VOIP voice gateways module: with the dial signaling and the speech conversion of telephone set is the IP bag, transmits on network, and the simulative telephone interface of module possesses a plurality of FXS mouths and FXO mouth, and digital interface adopts 10/100Mbps self adaptation Ethernet interface;
Network exchange module: the Switching Module based on Ethernet transmission data, a plurality of Ethernet interfaces are provided, be used for each mixed-media network modules mixed-media in the connection device;
TSIP routing gateway module: be used to realize the mutual conversion of digital TV TS bag and ethernet ip bag, and set up route for the interconnection of each equipment.This module can realize the two-way mutual commentaries on classics between IP bag and the standard TS bag, and module possesses routing function, configurable dynamic routing or static routing table.The coffret of TS bag adopts the ASI interface, and module has a TS output port and a plurality of TS input port, and TS input port maximum can extend to 254, and digital interface adopts 10/100Mbps self adaptation Ethernet interface.
The wide-band modulation module: be used for the TS bag is carried out the chnnel coding modulation, to obtain to be applicable to the broadband rf signal of wireless fading channel transmission, signal takies spectral bandwidth 8MHz;
Power amplifier: the radiofrequency signal after will modulating is carried out signal power and is amplified;
Cavity body filter: the extraneous noise signal beyond the useful radiofrequency signal of filtering, equipment is equipped with two cavity body filters, and the logical frequency of its band adopts different bands lead to frequency respectively according to the difference of system's transmitting-receiving frequency, is respectively applied for to launch filtering and accept filter;
Duplexer filter: receive through the radiofrequency signal after amplifying from rf inputs, export antenna end to through behind the bandpass filtering, the radiofrequency signal of simultaneously antenna end being received is delivered to radio-frequency (RF) output end through another bandpass filtering;
Transmitting-receiving single antenna: be used to receive and dispatch radiofrequency signal, adopt omnidirectional antenna;
Low noise amplifier LNA: the weak radio-frequency signal of receiving is amplified,, reduce the signal link noise to improve the useful signal energy;
Power splitter: received signal is carried out the power division output of one-to-many;
The narrowband demodulation module: the narrow radio frequency signal that is used for receiving carries out the channel demodulation decoding, to recover the original TS bag through wireless fading channel.
Described client terminal station equipment is made of following functional module, wherein possesses following equal modules with the message center station equipment: image recording machine, picture monitor, telephone set, Internet video coding/decoding module, VOIP voice gateways module, network exchange module, TSIP routing gateway module, power amplifier, cavity body filter, duplexer filter, transmitting-receiving single antenna, low noise amplifier LNA.All the other modules are as follows:
The narrowband modulation module: be used for the TS bag is carried out the chnnel coding modulation, to obtain to be applicable to the narrow radio frequency signal of wireless fading channel transmission, signal takies spectral bandwidth 1MHz;
The broadband demodulator module: the broadband rf signal that is used for receiving carries out the channel demodulation decoding, to recover the original TS bag through wireless fading channel.
Wide-band modulation/demodulation module comprises the module that adopts ADTB-T, DVB-T, DVB-T2, ISDB-T and DMB-T Digital Television Terrestrial Broadcasting modulating/demodulating technology, and reference frequency output is between 100MHz-1GHz, output spectrum bandwidth 8MHz; The modulation system of narrowband modulation/demodulation module adopts QAM or QPSK, and reference frequency output is between 100MHz-1GHz, output spectrum bandwidth 1MHz or 2MHz, can be under the high-speed mobile situation stable transfer.
Described communication report center and the basic connected mode of client terminal station equipment module are: the image recording machine is taken in real time at the scene and is obtained raw video signal, this signal is delivered to the Internet video coding/decoding module carry out the compressed video IP traffic that compressed encoding formation data transfer rate is suitable for the wireless signal-path band width transmission, be connected into network exchange module; Simultaneously telephone set is connected to VOIP voice gateways module, signaling and voice that operating personnel are dialed network telephone are converted to IP traffic after encoding, be connected into network exchange module; IP traffic is delivered to the Ethernet interface of TSIP routing gateway module by network exchange module, convert the IP packet to digital TV TS stream, and export broadband or narrowband modulation module to and finish the chnnel coding modulation, the wide band radio-frequency small-signal that is applicable to the wireless fading channel transmission of output spectrum bandwidth 8MHz or 1MHz; RF small signals through cavity body filter filtering out-of-band noise interference signal, are received and dispatched through duplexer filter and are isolated after the antenna emission after power amplifier amplifies output; After antenna receives external RF small signals, through duplexer filter and cavity body filter finish that transmitting-receiving is isolated and the out-of-band noise target signal filter after, send into low noise amplifier LNA, the weak radio-frequency signal of receiving is amplified, to improve the useful signal energy, reduce the signal link noise; The received signal of communication report center is amplified through low noise after power splitter exports multichannel narrowband demodulation module respectively to and is carried out the channel demodulation decoding; Directly deliver to the broadband demodulator module after the received signal at client terminal station is amplified through low noise and carry out the channel demodulation decoding; Received signal recovers the original TS bag through wireless fading channel after demodulation, be connected into TSIP routing gateway module, and the TS bag is reduced into the IP packet, delivers to Internet video coding/decoding module and VOIP voice gateways module through network exchange module.Loaded service IP packet transmits in TSIP routing gateway module can need be with the Star Network framework of data in system by the routing table set basis in the system, also can be by other transmission meanss as directly being connected into other local area network (LAN)s, sending to mode such as telecommunication network through satellite communication and be sent to the place that needs.
The objective of the invention is to provide a kind of radio multi-media communicating system that can satisfy under the at a high speed high dynamic airborne applied environment of helicopter, the zone radius that this system covers in application can reach kilometers up to a hundred.Can realize star-like group-net communication just because of this system, multimedia services such as carrying video, voice, data, original functions such as airborne broadband wireless image transmission system, short-wave radio set and low speed data chain that are applied on the helicopter all can realize all or part of function by system of the present invention.System of the present invention can also realize seamless link by route and other communication systems, to reach the purpose of overlength distance transmission, can be the leader who is in command centre and understand field condition in real time in application such as search and rescue, rescue, in time making a policy provides strong communication support.
Airborne ultra-short wave multimedia communications system message center station equipment of the present invention should be designed to be suitable for the airborne equipment that helicopter uses, and is in the status of message center in Star Network, is responsible for each client terminal station forwarding of data work.The client terminal station equipment can be according to the difference of installation or environment for use, being designed to apparatus-form such as machine-carried type, vehicular, carrier-borne formula, backpack, fixing machine posture disposes to aircraft, vehicle, naval vessels, Communication Personnel or other MOVING STRUCTUREs and fixed building use, to realize the multimedia communication safeguard work under the various different application environment.
Description of drawings
Fig. 1 is system architecture and the equipment room annexation of airborne ultra-short wave multimedia communications system embodiment of the present invention;
Fig. 2 constitutes and annexation for the central station device interior of airborne ultra-short wave multimedia communications system embodiment of the present invention;
Fig. 3 constitutes and annexation for the client terminal station equipment of airborne ultra-short wave multimedia communications system embodiment of the present invention is inner.
Embodiment
Below in conjunction with drawings and Examples airborne ultra-short wave multimedia communications system of the present invention is elaborated.
See also Fig. 1 earlier, Fig. 1 is system architecture and the equipment connecting relation of an embodiment of airborne ultra-short wave multimedia communications system of the present invention.Present embodiment has constituted the star-like communication network with five communication nodes by a communication report center and four client terminal stations.Wherein, the communication report center device design is the machine-carried type structure, is used for the helicopter carrying and uses; Four client terminal stations are designed to machine-carried type, vehicular, fixing machine posture and backpack client terminal station respectively, are applied to helicopter, communication vehicle, communication base station equipment machine room and reporter respectively and carry.
Described message center station equipment is by constituting with lower module:
Image recording machine 1: obtain on-the-spot raw video signal;
Internet video coding/decoding module 4: raw video signal encoded and send with the form of IP bag, vision signal after simultaneously the video IP bag decoding of receiving being restored, code/decode format adopts H.264 standard, video input and output analog interface adopts the AV interface, and digital interface adopts 10/100Mbps self adaptation Ethernet interface.；
Picture monitor 2: show the vision signal after recovering, simultaneously the image scene that photographs is monitored;
Telephone set 3: realize the dialing function, obtain the local voice signal, recover the remote speech signal;
VOIP voice gateways module 5: with the dial signaling and the speech conversion of telephone set is the IP bag, transmits on network, and the simulative telephone interface of module possesses a plurality of FXS mouths and FXO mouth, and digital interface adopts 10/100Mbps self adaptation Ethernet interface;
Network exchange module 6: the Switching Module based on Ethernet transmission data, eight Ethernet interfaces are provided, be used for each mixed-media network modules mixed-media in the connection device;
TSIP routing gateway module 7: be used to realize the mutual conversion of digital TV TS bag and ethernet ip bag, and set up route for the interconnection of each equipment, module possesses routing function, configurable dynamic routing or static routing table.The coffret of TS bag adopts the ASI interface, and module has a TS output port and four TS input ports, and TS input port maximum can extend to 254, and digital interface adopts 10/100Mbps self adaptation Ethernet interface;
Wide-band modulation module 8: be used for the TS bag is carried out the chnnel coding modulation, modulation system adopts the ADTB-T standard, and to obtain to be applicable to the broadband rf signal of wireless fading channel transmission, signal takies spectral bandwidth 8MHz;
Power amplifier 12: the radiofrequency signal after will modulating is carried out signal power and is amplified;
Emission cavity filter 13 and reception cavity fluid filter 15: the extraneous noise signal beyond the useful radiofrequency signal of filtering, equipment is equipped with two cavity body filters, the logical frequency of its band adopts different bands lead to frequency respectively according to the difference of system's transmitting-receiving frequency, is respectively applied for to launch filtering and accept filter;
Duplexer filter 14: receive through the radiofrequency signal after amplifying from rf inputs, export antenna end to through behind the bandpass filtering, the radiofrequency signal of simultaneously antenna end being received is delivered to radio-frequency (RF) output end through another bandpass filtering;
Transmitting-receiving single antenna 18: be used to receive and dispatch radiofrequency signal;
Low noise amplifier LNA16: the weak radio-frequency signal of receiving is amplified,, reduce the signal link noise to improve the useful signal energy;
Power splitter 17: received signal is carried out the power division output of one-to-many;
Narrowband demodulation module 11: the narrow radio frequency signal that is used for receiving carries out the channel demodulation decoding, adopts the QPSK demodulation, to recover the original TS bag through wireless fading channel.
Described client terminal station equipment is made of following functional module, wherein has and message center station equipment equal modules: image recording machine 1, picture monitor 2, telephone set 3, Internet video coding/decoding module 4, VOIP voice gateways module 4, network exchange module 6, TSIP routing gateway module 7, power amplifier 12, emission cavity filter 13 and reception cavity fluid filter 15, duplexer filter 14, transmitting-receiving single antenna 18, low noise amplifier LNA16.Other modules are as follows:
Narrowband modulation module 10: be used for the TS bag is carried out the chnnel coding modulation, adopt the QPSK modulation system, to obtain to be applicable to the narrow radio frequency signal of wireless fading channel transmission, signal takies spectral bandwidth 1MHz;
Broadband demodulator module 9: the broadband rf signal that is used for receiving carries out the channel demodulation decoding, and to recover the original TS bag through wireless fading channel, demodulation mode meets the ADTB-T standard.
The basic connected mode of the described communication report center of present embodiment EM equipment module is: image recording machine 1 is taken in real time at the scene and is obtained raw video signal, this signal is delivered to Internet video coding/decoding module 4 meet the H.264 compressed video IP traffic that is suitable for the wireless signal-path band width transmission of the compressed encoding formation data rate 1Mbps of standard, be connected into network exchange module 6; Telephone set 3 is connected to VOIP voice gateways module 4, and signaling and voice that operating personnel are dialed network telephone are converted to IP traffic after encoding, be connected into network exchange module 6; IP traffic is delivered to the Ethernet interface of TSIP routing gateway module 7 by network exchange module 6, convert the IP packet to digital TV TS stream, and export wide-band modulation module 8 to and finish chnnel coding modulation, modulation system adopts the ADTB-T standard, the ultrashort wave frequency range wide band radio-frequency small-signal that is applicable to the wireless fading channel transmission of output spectrum bandwidth 8MHz; RF small signals through cavity body filter 13 filtering out-of-band noise interference signals, are received and dispatched through duplexer filter 14 and are isolated after 18 emissions of airborne omnidirectional antenna after power amplifier 12 amplifies output; After omnidirectional antenna 18 receives external narrow radio frequency small-signal, through duplexer filter 14 and cavity body filter 15 finish that transmitting-receiving is isolated and the out-of-band noise target signal filter after, send into low noise amplifier LNA16, the weak radio-frequency signal of receiving is amplified, to improve the useful signal energy, reduce the signal link noise; Export four tunnel narrowband demodulation modules 11 respectively to through power splitter 17 again and carry out the channel demodulation decoding, adopt the QPSK demodulation mode; After demodulation, recover original TS bag, be connected into TSIP routing gateway module 7, the TS bag is reduced into the IP packet, deliver to Internet video coding/decoding module 4 and VOIP voice gateways module 4 through network exchange module 6 through wireless fading channel.Loaded service IP packet transmits in TSIP routing gateway module 7 can need be with the Star Network framework of data in system by the routing table set basis in the system, also can be by other transmission meanss as directly being connected into other local area network (LAN)s, sending to mode such as telecommunication network through satellite communication and be sent to the place that needs.
The basic connected mode of the described client terminal station equipment of present embodiment module is: image recording machine 1 is taken in real time at the scene and is obtained raw video signal, this signal is delivered to Internet video coding/decoding module 4 meet the H.264 compressed video IP traffic that is suitable for the wireless signal-path band width transmission of the compressed encoding formation data rate 1Mbps of standard, be connected into network exchange module 6; Simultaneously telephone set 3 is connected to VOIP voice gateways module 4, signaling and voice that operating personnel are dialed network telephone are converted to IP traffic after encoding, be connected into network exchange module 6; IP traffic is delivered to the Ethernet interface of TSIP routing gateway module 7 by network exchange module 6, convert the IP packet to digital TV TS stream, and export narrowband modulation module 10 to and finish chnnel coding modulation, adopt the QPSK modulation system, the ultrashort wave frequency range narrow radio frequency small-signal that is applicable to the wireless fading channel transmission of output spectrum bandwidth 1MHz; RF small signals through emission cavity filter 13 filtering out-of-band noise interference signals, are received and dispatched through duplexer filter 14 and are isolated after 18 emissions of airborne omnidirectional antenna after power amplifier 12 amplifies output; After omnidirectional antenna 18 receives external wide band radio-frequency small-signal, through duplexer filter 14 and reception cavity fluid filter 15 finish that transmitting-receiving is isolated and the out-of-band noise target signal filter after, send into low noise amplifier LNA16, the weak radio-frequency signal of receiving is amplified, to improve the useful signal energy, reduce the signal link noise; Deliver to broadband demodulator module 11 again and carry out the channel demodulation decoding, demodulation mode meets the ADTB-T standard; Received signal recovers the original TS bag through wireless fading channel after demodulation, be connected into TSIP routing gateway module 7, and the TS bag is reduced into the IP packet, delivers to Internet video coding/decoding module 4 and VOIP voice gateways module 5 through network exchange module 6.Loaded service IP packet transmits in TSIP routing gateway module 7 can need be with the Star Network framework of data in system by the routing table set basis in the system, also can be by other transmission meanss as directly being connected into other local area network (LAN)s, sending to mode such as telecommunication network through satellite communication and be sent to the place that needs.Equipment profile and structure are designed to machine-carried type, vehicular, fixing machine posture and backpack according to the occupation mode difference, and device interior constitutes all consistent.
The business of the described airborne ultra-short wave multimedia communications system of embodiment support comprises video, voice, phone, data etc., all professional packets can carry out Dynamic Recognition by each TSIP routing gateway according to the purpose IP address of carrying in the IP bag in the Star Network that is made of a communication report center and four client terminal stations, and finish corresponding forwarding, send to destination node corresponding service module.
This system can be applicable to some such as under the at a high speed high dynamic and high complex-terrain environment of Review for Helicopter in the search and rescue of aerospace engineering landing of return capsule field, also can use under the situations such as news report alive such as rescue at sea, mountain area rescue, city large-scale activity and race.
Claims (7)
1. an airborne ultra-short wave multimedia communications system is characterized in that this system comprises a communication report center and a plurality of client terminals station; Use the two-way communication of ultrashort wave wireless channel between communication report center and each client terminal station, form the Star Network framework jointly; Direct communication between communication report center and the client terminal station is transmitted the intercommunication interconnection by communication report center between each client terminal station;
The formation of described communication report center comprises following EM equipment module:
Image recording machine (1): obtain on-the-spot raw video signal;
Picture monitor (2): show the vision signal after recovering, simultaneously the image scene that photographs is monitored;
Telephone set (3): realize the dialing function, obtain the local voice signal, recover the remote speech signal;
Internet video coding/decoding module (4): raw video signal encoded and send the vision signal after simultaneously the video IP bag decoding of receiving being restored with the form of IP bag;
VOIP voice gateways module (5): with the dial signaling and the speech conversion of telephone set is the IP bag, transmits on network;
Network exchange module (6): the Switching Module based on Ethernet transmission data, a plurality of Ethernet interfaces are provided, be used for each mixed-media network modules mixed-media in the connection device;
TSIP routing gateway module (7): be used to realize the mutual conversion of digital TV TS bag and ethernet ip bag, and set up route for the interconnection of each equipment;
Wide-band modulation module (8): be used for the TS bag is carried out the chnnel coding modulation, to obtain to be applicable to the broadband rf signal of wireless fading channel transmission, signal takies spectral bandwidth 8MHz;
Power amplifier (12): the radiofrequency signal after will modulating is carried out signal power and is amplified;
Emission cavity filter (13): the extraneous noise signal beyond the useful radiofrequency signal of filtering, equipment is equipped with two cavity body filters, the logical frequency of its band adopts different bands lead to frequency respectively according to the difference of system's transmitting-receiving frequency, is respectively applied for to launch filtering and accept filter;
Duplexer filter (14): receive through the radiofrequency signal after amplifying from rf inputs, export antenna end to through behind the bandpass filtering, the radiofrequency signal of simultaneously antenna end being received is delivered to radio-frequency (RF) output end through another bandpass filtering;
Dual-mode antenna (18): be used to receive and dispatch radiofrequency signal;
Low noise amplifier LNA(16): the weak radio-frequency signal of receiving is amplified,, reduce the signal link noise to improve the useful signal energy;
Power splitter (17): received signal is carried out the power division output of one-to-many;
With a plurality of narrowband demodulation modules (11): the narrow radio frequency signal that is used for receiving carries out channel demodulation decoding, to recover the original TS bag through wireless fading channel;
The EM equipment module at described client terminal station comprises described image recording machine (1), picture monitor (2), telephone set (3), Internet video coding/decoding module (4), VOIP voice gateways module (5), network exchange module (6), TSIP routing gateway module (7), power amplifier (12), emission cavity filter (13), duplexer filter (14), dual-mode antenna (18) and low noise amplifier LNA(16), also have following EM equipment module:
Narrowband modulation module (10): be used for the TS bag is carried out the chnnel coding modulation, to obtain to be applicable to the narrow radio frequency signal of wireless fading channel transmission, signal takies spectral bandwidth 1MHz;
Broadband demodulator module (9): the broadband rf signal that is used for receiving carries out the channel demodulation decoding, to recover the original TS bag through wireless fading channel;
The basic connected mode of the EM equipment module at described communication report center and client terminal station is: described image recording machine (1) is taken in real time at the scene and is obtained raw video signal, this signal is delivered to Internet video coding/decoding module (4) carry out the compressed video IP traffic that compressed encoding formation data transfer rate is suitable for the wireless signal-path band width transmission, be connected into network exchange module (6); Described telephone set (3) is connected to VOIP voice gateways module (5), and signaling and voice that operating personnel are dialed network telephone are converted to IP traffic after encoding, be connected into network exchange module (6); IP traffic is delivered to the Ethernet interface of TSIP routing gateway module (7) by network exchange module (6), convert the IP packet to digital TV TS stream, and export wide-band modulation module (8) or narrowband modulation module (10) to and finish the chnnel coding modulation, the wide band radio-frequency small-signal that is applicable to the wireless fading channel transmission of output spectrum bandwidth 8MHz or 1MHz; RF small signals through emission cavity filter (13) filtering out-of-band noise interference signal, are received and dispatched through duplexer filter (14) and are isolated after antenna (18) emission after power amplifier (12) amplifies output; After antenna (18) receives external RF small signals, through duplexer filter (14) and reception cavity fluid filter (15) finish that transmitting-receiving is isolated and the out-of-band noise target signal filter after, send into low noise amplifier LNA(6), the weak radio-frequency signal of receiving is amplified, to improve the useful signal energy, reduce the signal link noise; The received signal process low noise amplifier LNA(6 of communication report center) low noise is amplified after described power splitter (17) exports multichannel narrowband demodulation module (11) respectively to and is carried out the channel demodulation decoding; The received signal process low noise amplifier LNA(6 at client terminal station) directly delivers to broadband demodulator module (9) after low noise is amplified and carry out the channel demodulation decoding; Received signal recovers the original TS bag through wireless fading channel after demodulation, be connected into TSIP routing gateway module (7), the TS bag is reduced into the IP packet, deliver to Internet video coding/decoding module (4) or VOIP voice gateways module (5) through network exchange module (6), loaded service IP packet transmits in described TSIP routing gateway module (7) need be with the Star Network framework of data in system by the routing table set basis in the system, or by other transmission meanss as directly being connected into other local area network (LAN)s, send to the place that mode such as telecommunication network is sent to be needed through satellite communication.
2. airborne ultra-short wave multimedia communications system according to claim 1, it is characterized in that, described communication report center is carried by aircraft, and described client terminal station is machine-carried type, vehicular or backpack, directly bears for the carrying of airborne, vehicle or personnel respectively to portably use.
3. airborne ultra-short wave multimedia communications system according to claim 1, it is characterized in that, described Internet video coding/decoding module (4) be MPEG-2, MPEG-4, H.264, the encoder realized of AVS and VC-1 Image Data Compression encoding and decoding standard, video input and output analog interface adopts the AV interface, and digital interface adopts 10/100Mbps self adaptation Ethernet interface.
4. airborne ultra-short wave multimedia communications system according to claim 1 is characterized in that, the analog interface of described VOIP voice gateways module (5) possesses a plurality of FXS mouths and FXO mouth, and digital interface adopts 10/100Mbps self adaptation Ethernet interface.
5. airborne ultra-short wave multimedia communications system according to claim 1, it is characterized in that, described TSIP routing gateway module (7) realizes the two-way mutual commentaries on classics between IP bag and the standard TS bag, and block configuration dynamic routing or static routing table, possess routing function, the coffret of TS bag adopts the ASI interface, and module has a TS output port and a plurality of TS input port, TS input port maximum can extend to 254, and digital interface adopts 10/100Mbps self adaptation Ethernet interface.
6. airborne ultra-short wave multimedia communications system according to claim 1, it is characterized in that, described wide-band modulation module and broadband demodulator module are the module of ADTB-T, DVB-T, DVB-T2, ISDB-T or DMB-T Digital Television Terrestrial Broadcasting modulating/demodulating technology, reference frequency output is between 100MHz-1GHz, output spectrum bandwidth 8MHz; The modulation system of narrowband modulation/demodulation module adopts QAM or QPSK, and reference frequency output is between 100MHz-1GHz, output spectrum bandwidth 1MHz or 2MHz.
7. airborne ultra-short wave multimedia communications system according to claim 1 is characterized in that, described antenna (18) adopts omnidirectional antenna.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103391146A (en) * | 2013-07-30 | 2013-11-13 | 苏州东奇信息科技股份有限公司 | Marine communication platform based on shortwave digital broadcast |
| CN103763749A (en) * | 2013-12-06 | 2014-04-30 | 中国人民解放军理工大学 | TS-IP routing module and broadcast routing system |
| CN104125023A (en) * | 2014-07-08 | 2014-10-29 | 中国人民解放军海军大连舰艇学院 | Spatial local estimation based maritime short-wave frequency data reconstruction method |
| CN105812226A (en) * | 2016-05-12 | 2016-07-27 | 石家庄开发区泰顺电子通讯有限公司 | Short wave communication management platform based on Ethernet |
| CN106464310A (en) * | 2014-04-17 | 2017-02-22 | 乌贝库米有限公司 | Methods and apparatus for mitigating fading in a broadband access system using drone/UAV platforms |
| CN106657884A (en) * | 2016-10-19 | 2017-05-10 | 广东容祺智能科技有限公司 | Video broadcast system for unmanned aerial vehicles |
| CN106686079A (en) * | 2016-12-28 | 2017-05-17 | 上海埃威航空电子有限公司 | Wireless remote file transfer system based on QAM |
| CN108307372A (en) * | 2018-01-18 | 2018-07-20 | 陕西烽火实业有限公司 | A kind of the shortwave emergency communication system and method for multichannel integrated treatment |
| CN109246384A (en) * | 2018-10-26 | 2019-01-18 | 深圳职业技术学院 | A kind of wireless image transmission system for Remote Video Conference |
| CN109347646A (en) * | 2018-11-27 | 2019-02-15 | 北京空间技术研制试验中心 | Incorporate image communication system based on multicast |
| CN109379089A (en) * | 2018-09-06 | 2019-02-22 | 清华大学 | A kind of airport Data Bridge method based on software radio |
| CN110072225A (en) * | 2019-04-24 | 2019-07-30 | 广州大学华软软件学院 | A kind of desert tourism deliverance apparatus and control method based on wireless communication transmissions |
| CN110557735A (en) * | 2018-05-30 | 2019-12-10 | 奥维飞越通信有限公司 | communication system based on regional broadband wireless network |
| CN116527075A (en) * | 2023-07-05 | 2023-08-01 | 四川九洲空管科技有限责任公司 | Airborne VDL mode 2 aviation communication radio station |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391146A (en) * | 2013-07-30 | 2013-11-13 | 苏州东奇信息科技股份有限公司 | Marine communication platform based on shortwave digital broadcast |
| CN103763749A (en) * | 2013-12-06 | 2014-04-30 | 中国人民解放军理工大学 | TS-IP routing module and broadcast routing system |
| CN106464310A (en) * | 2014-04-17 | 2017-02-22 | 乌贝库米有限公司 | Methods and apparatus for mitigating fading in a broadband access system using drone/UAV platforms |
| CN104125023A (en) * | 2014-07-08 | 2014-10-29 | 中国人民解放军海军大连舰艇学院 | Spatial local estimation based maritime short-wave frequency data reconstruction method |
| CN105812226A (en) * | 2016-05-12 | 2016-07-27 | 石家庄开发区泰顺电子通讯有限公司 | Short wave communication management platform based on Ethernet |
| CN106657884A (en) * | 2016-10-19 | 2017-05-10 | 广东容祺智能科技有限公司 | Video broadcast system for unmanned aerial vehicles |
| CN106686079A (en) * | 2016-12-28 | 2017-05-17 | 上海埃威航空电子有限公司 | Wireless remote file transfer system based on QAM |
| CN106686079B (en) * | 2016-12-28 | 2020-03-27 | 上海埃威航空电子有限公司 | Wireless remote file transmission system based on QAM |
| CN108307372A (en) * | 2018-01-18 | 2018-07-20 | 陕西烽火实业有限公司 | A kind of the shortwave emergency communication system and method for multichannel integrated treatment |
| CN110557735A (en) * | 2018-05-30 | 2019-12-10 | 奥维飞越通信有限公司 | communication system based on regional broadband wireless network |
| CN110557735B (en) * | 2018-05-30 | 2024-02-27 | 中泓慧联技术有限公司 | Communication system based on regional broadband wireless network |
| CN109379089A (en) * | 2018-09-06 | 2019-02-22 | 清华大学 | A kind of airport Data Bridge method based on software radio |
| CN109246384A (en) * | 2018-10-26 | 2019-01-18 | 深圳职业技术学院 | A kind of wireless image transmission system for Remote Video Conference |
| CN109347646A (en) * | 2018-11-27 | 2019-02-15 | 北京空间技术研制试验中心 | Incorporate image communication system based on multicast |
| CN110072225A (en) * | 2019-04-24 | 2019-07-30 | 广州大学华软软件学院 | A kind of desert tourism deliverance apparatus and control method based on wireless communication transmissions |
| CN116527075A (en) * | 2023-07-05 | 2023-08-01 | 四川九洲空管科技有限责任公司 | Airborne VDL mode 2 aviation communication radio station |
| CN116527075B (en) * | 2023-07-05 | 2023-08-25 | 四川九洲空管科技有限责任公司 | Airborne VDL mode 2 aviation communication radio station |
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