CN103036608A - Space-based movable multi-functional network system and earth-satellite retransmission device (station) - Google Patents
Space-based movable multi-functional network system and earth-satellite retransmission device (station) Download PDFInfo
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- CN103036608A CN103036608A CN2012105480913A CN201210548091A CN103036608A CN 103036608 A CN103036608 A CN 103036608A CN 2012105480913 A CN2012105480913 A CN 2012105480913A CN 201210548091 A CN201210548091 A CN 201210548091A CN 103036608 A CN103036608 A CN 103036608A
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Abstract
Provided are a space-based movable multi-functional network system and an earth-satellite retransmission device (station). The space-based movable multi-functional network system is a stellate or mesh network system of interactive type information over-distance / close range transmission, wherein the stellate or mesh network system is composed of a movable remote end machine (in a handheld or vehicle-mounted mode), a central station, the earth-satellite retransmission device (station) and a satellite link, and the movable remote end machine integrates real-time clear dynamic images, satellite accurate locating, high speed data mobile communication and other multi-functional mobile information. Network organization is rapid and flexible, equipment cost is low, operation network service system investment is small, and maintenance costs are low. The earth-satellite retransmission device (station), a radio frequency transmission-receive control module of the earth-satellite retransmission device (station), and a transmission-receive modulation-demodulation control module of the earth-satellite retransmission device (station) play key roles in the technical characteristics of the whole network system. The space-based movable multi-functional network system and the earth-satellite retransmission device (station) are suitable for on-scene command of battlefields, border and coastal defense, long-distance military equipment escorting, public order emergencies, important guard targets, emergency rescue and disaster relief and the like, enable a command center to master real-time dynamic images and various information interaction of on-scene targets in time, and achieve informatization of site disposal command and cooperative capability for multiple-military-service battle clusters or government and enterprise and public institutions.
Description
Technical field
1, space-based mobile multifunctional network system invention relate to the becoming one such as mobile Real-time Motion Image transmission technology, satellite positioning tech, high-speed data mobile communication technology and communication technology of satellite super far away/information transmission network systems technology closely.This network system be have real-time clear dynamic image, satellite accurately the multifunctional informations such as location, high-speed data and digital voice in integrated high-performance mobile remote termination and command centre station, the network architecture of the low cost flexible that forms through ground-star transponder (station), satellite communication link can transmit interactive mobile multifunctional information.
2, ground-star transponder (station) invention relates to a kind of high-performance, portable, the wireless transmission transponder (station) of cheaply land mobile communication and satellite communication link are transferred each other (or directly ground forwarding), be the space-based mobile multifunctional network system super far away/the near important key components of transmission information.
Technical background
1, now widely used Generation Mobile Telecommunication System and the present third generation land mobile communication (W-CDMA, cdma2000 and TD-SCDMA) that is developing etc. do not have accurately (1-3 rice) geo-localisation information and interactive the transmission; Operation networking investment is very large, and it is slow, dumb to build the networking of the rare density telex network of overlength distance, and equipment investment is large, and cost price is than expensive.China's 3G (Third Generation) Moblie system (TDD), also unsuitable high-speed mobile destinations traffic.
2, the existing second generation and 3G (Third Generation) Moblie, covering for rare density remote subscriber is to solve with satellite transmission, normally carry out forwarding information with the VSAT ground satellite station, transmit to finish the mobility transmission information with vehicular VSAT ground satellite station, cost of investment is large, and limit by traffic, region and environment, so mobility is limited; Equipment cost and first networking expense and maintenance expense are all higher; It is also larger to run professional service charge.
Summary of the invention
1, existing mobile communication can not low-costly drop into, flexible networking in order to solve, can not hang down the interactive mode of maintenance expense super far away/the multifunctional all information such as short range transmission is accurately located, real-time clear dynamic image and high-speed data communication.For this reason, the present invention proposes space-based mobile multifunctional network system and ground-star transponder (station).This network system is by central station (mobile command center), mobile remote termination (hand-hold type or vehicular), the maneuverability that ground-star transponder (station) and satellite link form, low cost super far away/the short range transmission network system, have that real-time transmission is accurately located, mutual functions of multifunctional information such as dynamic image, high-speed data and voice communication clearly.Command centre by system can be in time super far away/closely monitor, control and command and dispose region of war or regional field data.Depending on concrete instructions for use, can arrange fast neatly small-area network system, large local area network system, section industry network system ....Each single central station system consists of star network, the multicenter station via satellite link can consist of on a large scale, the mesh network system of overlength distance (or consist of large regional network mesh network system by ground-star transponder).
The technical solution adopted for the present invention to solve the technical problems is: realize that the mobile remote termination (hand-held or vehicle-mounted) of the integrated designs of multifunctional information such as accurate status, Real-time Motion Image, high-speed data and voice communication and central station and the network architecture of ground-star transponder (station), satellite link composition design; Design simultaneously high-performance, low cost, light ground-star transponder (station) solve switching super far away/near communication.
Fig. 1 is space-based mobile multifunctional network system structure, and A is central station (command centre); B is remote termination (individual soldier, vehicle-mounted, airborne, ship carries or user's hand-held set); C is ground-star transponder (station) (or ground forwarding), and (1) is transmitted the information of central station or remote termination and broadcast TV programs by satellite, otherwise or.(2) in or the situation that landform hinders far away at communication distance, transmit the information of remote termination to central station; D is satellite repeater.The technical performance of central station and remote termination is core and the embodiment of whole network system, and whether the factors such as the impact of communicating by letter of distance that ground-star transponder (station) depends on central station and remote termination, landform, atural object are set.Its main performance technical indicator is: the information such as (1) real-time clear dynamic image, accurate geographic location, high-speed data and voice communication integrated, super far away/closely transmit alternately, (2) channel width: 1.25MHz, (3) image definition: 720*560,1Mbps, MPEG-4, TPEG2000, (4) positioning accuracy: 3 meters-1 meter, (5) system data error rate is better than 10
-7, (6) receiving sensitivity is better than-110dBm, (7) remote termination (handing) weight :≤400 grams.
This network architecture can make up fully independently zone (region of war or area or industry department) network system, finishes command centre to information interaction and commanders such as the dynamic image that is equipped with remote termination personnel, moving vehicle (machine, ship) situation, position, data, voice.Information exchange between information exchange between the operation cluster and cooperation commander or the industry department, available a plurality of central stations consist of network finishing service function.The characteristics such as this network configuration has flexibly, quick, networking small investment, cost and maintenance expense are low.Be suitable for fast assembling and standardization to arrange; Be easy to set up super far away/short range transmission and can be greatly, network operation system that can be little.
2, for solve low-cost input, networking flexibility, operation maintenance expense low super far away/closely transmit Multifunctional conveying information, the present invention designs a kind of ground-star transponder (station), at remote termination and central station, far away or terrain environment is obstructed in the situation because of communication distance, remote termination information can't and central station between carry out information interaction when transmitting, ground-star transponder (station) forwarding information is installed to central station or is forwarded to satellite transmission information to central station, otherwise or.
The technical scheme that its technical problem that solves this locality-star transponder (station) adopts is: the multifunctional information according to remote termination (hand-hold type or vehicular) and central station passes a parameter and feature and satellite transmission parameter and feature alternately, designs high-performance, low cost, portable ground-star transponder (station).
Fig. 2 is ground-star transponder (station) function diagram.Figure (1) end: receive frequency f
1(UHF
1, L
1, S
1); Incoming level-110dBm～-30dBm (AGC), signal bandwidth 20MHz; (2) end: tranmitting frequency Ku
1Uplink band (or Ka
1Uplink band), transmitting power is fixed by link calculation; (3) end: tranmitting frequency f
2(UHF
2, L
2, S
2), transmitting power is by regulation and requirement, signal bandwidth 20MHz; (4) end: receive frequency Ku
2Band downlink or Ka
2Band downlink, receiving sensitivity-110dBm; A
1Omnidirectional antenna (1,3 end): receive frequency f
1(UHF
1,,, L
1, S
1), tranmitting frequency f
2, (UHF
2,, L
2, S
2); B
1Ground satellite antenna (4,2 end): Foldable type antenna, tranmitting frequency Ku
1Or Ka
1, receive frequency Ku
2Or Ka
2TRMDC (transmitting-receiving modulation /demodulation control) module is that mobile remote termination is connected with the interactive seamless coupling of the multifunctional information of central station, the prominent stunt art of transmitting is crucial, have receive and send messages transmission mode and automatically select the function of transmission information of prominent special artificial setting or auto-adjustment control, and have anti-strong jamming ability; RFTRC (radio-frequency receiving-transmitting control) module is to realize the key technology means of ground system and satellite coupling, reliable and stable transmission information, have artificial setting or auto-control receive and send messages reach with satellite mate, the prominent stunt art effect of reliable and stable transmission information.
Fig. 3 is that the space-based mobile multifunctional network system forms connection layout, provided super far away/the closely technical scheme of information interactive transfers net system and the technology realization of specifically network topology.Remote termination (hand-hold type or vehicular) image data, image----etc. information, send to central station; According to the use needs, but the information of fork-like farm tool used in ancient China is sent out at the receiving center station, that is, and and two-way transmission information.Ground-star repeater system realize via satellite super far away/closely transmit central station and remote termination interactive information, also can realize that the ground interactive information transmits without satellite.---Fig. 4 is the prominent special key core technical scheme of Fig. 2 ground-star transponder performance index specific implementation, also is the key core technical scheme that realizes the whole network system performance index of above-mentioned seamless link.The first band pass filter (BPF1) bandwidth 20MHz, its receives (at a distance) UHF power and is-110～-31dBm, frequency is the ground multifunctional information signal of 345 ± 10MHz, amplify through the first amplifier (A1), input transmitting-receiving modulation /demodulation control (TRMDC) module is carried out processing controls, its power output-96～-16dBm, the second amplifier (A2) power output-76～+ 4dBm, input the first frequency mixer (MIXER1), First vibration frequency source (L01) frequency 405～425MHz, power output+10dBm signal, in the first frequency mixer, carry out mixing with 345 ± 10MHz, its output signal frequency 70MHz, signal power-86～-6dBm, low pass filter (LPF1) cut-off frequency is 75MHz, the 3rd band pass filter (BPF3) bandwidth is 1.25MHz, the 3rd amplifier (A3) power output-75～+ 5dBm, the first variable gain amplifier (A4) power output-32～0dBm, four-tape bandpass filter (BPF4) bandwidth 1.25MHz, the second variable gain amplifier A5) power output 0dBm, attenuator (ATT1) power output-6dBm signal, input the second frequency mixer (MIXER2), the second local frequency source (L02) output frequency 706MHz, power output+10dBm signal, in the second frequency mixer, with the mixing of 70MHz signal, its output frequency 776MHz, power output-14dBm, the 5th band pass filter (BPF5) bandwidth 2MHz, the 3rd local frequency source output frequency 1726～2226MHz, power output+10dBm signal, in three-mixer (MIXER3), with the 5th band pass filter output frequency 776MHz, power-19dBm signal carries out mixing, its output frequency 950～1450MHz (bandwidth 500MHz), power output-27dBm signal, input radio frequency transmitting-receiving control module, carry out processing controls, power output-10dBm is amplified in its output through the 6th amplifier (A6), the information signal of frequency 950～1450MHz.The L frequency range multifunctional information signal that this is stable through the frequency conversion of standard upconverter, power amplification, reaches the satellite communication of Ku frequency range and satellite video transmission requirement.Vice versa for its reception technique and lift-off technology.
Fig. 5 is the ground-star transponder contour structures, number in the figure: 1-radio frequency delivery outlet, 2-rf input port, 3-intermediate frequency delivery outlet, 4-intermediate frequency input port, the 5-control interface manually arranges or automatically control, control single channel or multichannel, unidirectional or bidirectional information transmission, and control conversion displaying time--etc., the 6-power interface,, 7-monitoring display interface.Ground-star transponder has conversion, control, process information transmitting function.It is the model machine size that this figure marks size, certified products size and weight reduction half.
Claims (2)
1. the space-based mobile multifunctional network system is to be stood by mobile remote termination (hand-hold type or vehicular) and center (commander), the maneuverability that forms through ground-star transponder (station) and satellite link, mobile multifunctional information transmission network system.It is characterized in that: precision location (1-3 rice), real-time clear dynamic image (720*560, MPEG-4), integrated mobile remote termination (hand-hold type or vehicular) and the central stations of mobile multifunctional information such as high-speed data (1.2Mbps) and voice communication, with ground one star transponder (station) and satellite link form super far away/network architecture of interactive transmission information closely, can form mesh network or star network, can be greatly, can be little; Networking flexibility, fast, operation operation system small investment, maintenance expense are low.Ground-star transponder (station) technical scheme (Fig. 4) with transmitting-receiving modulation /demodulation control (TRMDC) module and radio-frequency receiving-transmitting control (RFTRC) module is to realize that the total system network seamless connects, the unique technique means of reliable interaction formula transmission multifunctional information.
2. a star transponder (station) be mobile multifunctional information, super far away/closely transmit, low-cost transmission wireless repeater (station), it is characterized in that: main interfacing performance index design determine with network system in forwarding capability mate; Low-cost, lightweight.This ground one star transponder (station) technical scheme and transmitting-receiving modulation /demodulation control (TRMDC) module thereof are to realize the interactive seamless link of multifunctional information of ground moving remote termination and central station, the unique technique of transmitting information; Radio-frequency receiving-transmitting control (RFTRC) module is to realize that ground system and satellite mate, the unique technique means of transmitting information.Super far away/closely play tie and key effect in the information transmission network system.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113965567A (en) * | 2021-10-13 | 2022-01-21 | 中国人民解放军战略支援部队航天工程大学 | Mesh network-based space-based information comprehensive application and information distribution system |
| CN114629540A (en) * | 2022-03-01 | 2022-06-14 | 西安航天动力技术研究所 | Communication networking system of carrier system under field unsupported condition |
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| US20070195825A1 (en) * | 2004-04-30 | 2007-08-23 | Yi-Sheng Wang | Satellite Communication System and Method |
| CN101232321A (en) * | 2008-02-05 | 2008-07-30 | 曾令儒 | Space base mobile multifunctional network system and ground-star transponder (station) |
| US20080304437A1 (en) * | 2007-06-08 | 2008-12-11 | Inmarsat Global Ltd. | TCP Start Protocol For High-Latency Networks |
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Patent Citations (3)
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| US20070195825A1 (en) * | 2004-04-30 | 2007-08-23 | Yi-Sheng Wang | Satellite Communication System and Method |
| US20080304437A1 (en) * | 2007-06-08 | 2008-12-11 | Inmarsat Global Ltd. | TCP Start Protocol For High-Latency Networks |
| CN101232321A (en) * | 2008-02-05 | 2008-07-30 | 曾令儒 | Space base mobile multifunctional network system and ground-star transponder (station) |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113965567A (en) * | 2021-10-13 | 2022-01-21 | 中国人民解放军战略支援部队航天工程大学 | Mesh network-based space-based information comprehensive application and information distribution system |
| CN113965567B (en) * | 2021-10-13 | 2023-09-08 | 中国人民解放军战略支援部队航天工程大学 | Space-based information comprehensive application and information distribution system based on Mesh network |
| CN114629540A (en) * | 2022-03-01 | 2022-06-14 | 西安航天动力技术研究所 | Communication networking system of carrier system under field unsupported condition |
| CN114629540B (en) * | 2022-03-01 | 2024-01-23 | 西安航天动力技术研究所 | Communication networking system of carrier system under field non-support condition |
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Application publication date: 20130410 |