CN103957046B - A kind of antenna for satellite communication in motion neighbour's star interference cuts forwarding method - Google Patents
A kind of antenna for satellite communication in motion neighbour's star interference cuts forwarding method Download PDFInfo
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- CN103957046B CN103957046B CN201410188933.8A CN201410188933A CN103957046B CN 103957046 B CN103957046 B CN 103957046B CN 201410188933 A CN201410188933 A CN 201410188933A CN 103957046 B CN103957046 B CN 103957046B
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Abstract
The present invention relates to one antenna for satellite communication in motion neighbour's star interference cut transmitting apparatus and cut forwarding method, be mainly the interference to adjacent satellite when preventing communication in moving system transmitting carrier wave.This device includes host computer, protocol converter, power amplifier, modem, Radio Beacon, shunt, low-noise amplifier and antenna for satellite communication in motion.Host computer is by judging the relation of satellite signal levels magnitude of voltage and a certain setting value received, control the outgoing carrier switch of modem, actively judge that antenna for satellite communication in motion follows the tracks of the state of geostationary satellite, namely can actively go to judge whether antenna for satellite communication in motion deviates tracking target satellite, it is prevented that in satellite signal transit process, produce adjacent star interference.
Description
Technical field
The present invention relates to one antenna for satellite communication in motion neighbour's star interference cut transmitting apparatus and cut forwarding method, be mainly the interference to adjacent satellite when preventing communication in moving system transmitting carrier wave.
Background technology
Satellite communication is by the constraint of geographical environment and distance, and it is point-to-multipoint, point covers advantage to ground, face and mobility flexibly so that satellite communication has obvious advantage in the field of communications.Along with developing rapidly of mobile satellite communication, satellite communication system, to supporting service more small-bore, more flexible, more complicated communication in moving system evolved, mixes High-power amplifier, and small-bore antenna for satellite communication in motion system has had wider application.
Owing to the wave beam of small aperture antenna is wider, the orbital position of satellite in the sky is close, about 2 degree.Antenna for satellite communication in motion is typically all the small-bore antenna of employing and mixes relatively large power amplifier, adds tracking satellite when antenna for satellite communication in motion uses and has certain deviation, so the interference to space adjacent satellite can be caused.
RRM is to realize the proper use of key with limited frequency bandwidth resources effective utilization of satellite communication system link, all plays an important role in the quality ensureing network and capacity.In satellite communication system, the target of RRM is exactly when limited network resources, provides quality of service to ensure for the small station in system.Its basic point of departure is adjacent or contrapolarization will not to be produced interference in satellite communication small station, improves wireless frequency spectrum utilization rate to greatest extent.
Communication in moving neighbour's star interference commonly used both at home and abroad at present cuts forwarding method and is mainly: a kind of is the passive determination methods based on quality of service, and classifying rationally quality of service is the key realized, and serious adjacent star interference otherwise can be caused not find.
Summary of the invention
The invention aims to overcome the deficiencies in the prior art, it is provided that a kind of antenna for satellite communication in motion neighbour's star interference cuts transmitting apparatus and cuts forwarding method, to improve the reliable utilization of satellite resource.
It is an object of the invention to be achieved through the following technical solutions.
A kind of antenna for satellite communication in motion neighbour's star interference of the present invention cuts transmitting apparatus, and this device includes host computer, protocol converter, power amplifier, modem, Radio Beacon, shunt, low-noise amplifier and antenna for satellite communication in motion；
Antenna for satellite communication in motion obtains L-band signal after the Ku band satellite signal received from geostationary satellite is carried out frequency conversion amplification by low-noise amplifier and is input to shunt, the L-band signal received is divided into two-way by shunt, wherein a road is to modem, the L-band carrier signal received is demodulated processing by modem, obtains baseband signal；Another road is to Radio Beacon, the L-band beacon signal received is changed into the analog level of satellite-signal by Radio Beacon through signal processing, analog level becomes digital signal level output by numeral conversion, digital signal level is input in host computer by protocol converter, digital signal level is carried out resolving the magnitude of voltage converting signal level to by host computer, and this signal level magnitude of voltage represents the signal intensity of the geostationary satellite that antenna for satellite communication in motion follows the tracks of；
Baseband signal is modulated processing by modem, obtain L-band carrier signal, L-band carrier signal carries out frequency conversion, power amplification by power amplifier, and output Ku band signal is to antenna for satellite communication in motion, and antenna for satellite communication in motion is by the Ku band signal real time emission that receives to geostationary satellite；
Host computer is controlled and monitoring Radio Beacon, modem and antenna for satellite communication in motion by protocol converter simultaneously.
A kind of antenna for satellite communication in motion neighbour's star interference of the present invention cuts forwarding method, and step is as follows:
(1) antenna for satellite communication in motion follows the tracks of geostationary satellite, obtain L-band signal after the Ku band satellite signal received from geostationary satellite is carried out frequency conversion amplification by low-noise amplifier and be input to shunt, the L-band signal received is divided into two-way by shunt, wherein a road is to Radio Beacon, the L-band beacon signal received is changed into the analog level of satellite-signal by Radio Beacon through signal processing, analog level becomes digital signal level output by numeral conversion, digital signal level is input in host computer by protocol converter, digital signal level is carried out resolving the magnitude of voltage converting signal level to by host computer, this signal level magnitude of voltage represents the signal intensity of the geostationary satellite that antenna for satellite communication in motion follows the tracks of, setting value internal with it for this signal level magnitude of voltage is compared by host computer；When signal level magnitude of voltage is not less than this setting value, illustrate that the geostationary satellite that antenna for satellite communication in motion is followed the tracks of does not interfere facing star；When signal level magnitude of voltage less than this setting value but persistent period less than minimal time value A, illustrate that the geostationary satellite that antenna for satellite communication in motion is followed the tracks of does not interfere facing star；When signal level magnitude of voltage is less than this setting value, and the persistent period is more than minimal time value A, enters step (2)；
(2) host computer is by protocol converter monitoring and control modem, host computer sends instructions to modem, closing the outgoing carrier of modem, if signal level magnitude of voltage is still less than this setting value, then modem keeps stopping outgoing carrier state；If signal level magnitude of voltage is not less than this setting value and time more than minimal time value B, then host computer sends instructions to modem, opens modem outgoing carrier, illustrates that the geostationary satellite that antenna for satellite communication in motion is followed the tracks of does not interfere facing star.Minimal time value A is generally 8-10s, and minimal time value B is generally 5-6s.
After completing above-mentioned steps, system completes a judgement cycle, then enter one and judge the cycle, carry out discriminatory analysis according to above-mentioned steps.
Beneficial effect
Host computer is by judging the relation of satellite signal levels magnitude of voltage and a certain setting value received, control the outgoing carrier switch of modem, actively judge that antenna for satellite communication in motion follows the tracks of the state of geostationary satellite, namely can actively go to judge whether antenna for satellite communication in motion deviates tracking target satellite, it is prevented that in satellite signal transit process, produce adjacent star interference.
Accompanying drawing explanation
Fig. 1 is the structural representation cutting transmitting apparatus of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment
As shown in Figure 1, a kind of antenna for satellite communication in motion neighbour's star interference cuts transmitting apparatus, and this device includes ThinkpadX230i host computer, NC600 protocol converter, MBB-KU040 power amplifier, CDM570L modem, 3434L Radio Beacon, VJGF-L-2 shunt, 1508HBN low-noise amplifier and SOM-1.0 antenna for satellite communication in motion；
SOM-1.0 antenna for satellite communication in motion obtains L-band signal after the Ku band satellite signal received from Asia four geostationary satellite is carried out frequency conversion amplification by 1508HBN low-noise amplifier and is input to VJGF-L-2 shunt, the L-band signal received is divided into two-way by VJGF-L-2 shunt, wherein a road is to CDM570L modem, the L-band carrier signal received is demodulated processing by CDM570L modem, obtains baseband signal；Another road is to 3434L Radio Beacon, the L-band beacon signal received is changed into the analog level of satellite-signal by 3434L Radio Beacon through signal processing, analog level becomes digital signal level output by numeral conversion, digital signal level is input in host computer by protocol converter, digital signal level is carried out resolving the magnitude of voltage converting signal level to by host computer, and this signal level magnitude of voltage represents the signal intensity of the geostationary satellite that antenna for satellite communication in motion follows the tracks of；
Baseband signal is modulated processing by CDM570L modem, obtain L-band carrier signal, L-band carrier signal carries out frequency conversion, power amplification by MBB-KU040 power amplifier, output Ku band signal is to SOM-1.0 antenna for satellite communication in motion, and SOM-1.0 antenna for satellite communication in motion is by the Ku band signal real time emission that receives to Asia four geostationary satellite；
ThinkPadX230i host computer is controlled and monitoring 3434L Radio Beacon, CDM570L modem and SOM-1.0 antenna for satellite communication in motion by NC600 protocol converter simultaneously.
A kind of antenna for satellite communication in motion neighbour's star interference cuts forwarding method, and step is as follows:
(1) SOM-1.0 antenna for satellite communication in motion follows the tracks of Asia four geostationary satellite, obtain L-band signal after the Ku band satellite signal received from Asia four geostationary satellite is carried out frequency conversion amplification by 1508HB low-noise amplifier and be input to VJGF-L-2 shunt, the L-band signal received is divided into two-way by VJGF-L-2 shunt, wherein a road is to 3434L Radio Beacon, the L-band beacon signal received is changed into the analog level of satellite-signal by 3434L Radio Beacon through signal processing, analog level becomes digital level-51dbm output by numeral conversion, digital level-51dbm is input in ThinkPadx230i host computer by NC600 protocol converter,-51dbm digital signal level is carried out resolving the voltage signal 8.2V converting signal level to by ThinkPadx230i host computer, this signal level voltage 8.2V represents the signal intensity of No. four geostationary satellites in Asia that SOM-1.0 antenna for satellite communication in motion follows the tracks of.Setting value 4.5 internal with it for this signal level magnitude of voltage 8.2 is compared by host computer；When level value is not less than 4.5 setting value, illustrate that Asia four geostationary satellite that SOM-1.0 antenna for satellite communication in motion is followed the tracks of does not interfere facing star；When level value is less than 4.5 setting value, but the time is not more than 10 seconds, illustrates that Asia four geostationary satellite that SOM-1.0 antenna for satellite communication in motion is followed the tracks of does not interfere facing star；When signal level magnitude of voltage is less than 4.5 setting values, and the time was more than 10 seconds, entered step (2)；
(2) ThinkPadx230i host computer is by the monitoring of NC600 protocol converter and control CMD570L modem, ThinkPadx230i host computer sends instructions to CMD570L modem, close the outgoing carrier of CDM570L modem, if signal level magnitude of voltage is still less than 4.5 setting values, then CDM570L modem keeps stopping outgoing carrier state；When signal level magnitude of voltage is less than 4.5 setting value, but the persistent period is not more than 5 seconds, then CDM570L modem keeps stopping outgoing carrier state；If signal level magnitude of voltage is not less than 4.5 setting values and persistent period more than setting time 5s, then ThinkPadx230i host computer sends instructions to CDM570L modem, open CDM570L modem outgoing carrier, illustrate that Asia four geostationary satellite that SOM-1.0 antenna for satellite communication in motion is followed the tracks of does not interfere facing star.
After completing above-mentioned steps, system completes a judgement cycle, then enter one and judge the cycle, carry out discriminatory analysis according to above-mentioned steps.
Claims (1)
1. antenna for satellite communication in motion neighbour's star interference cuts forwarding method, it is characterised in that step is as follows:
(1) antenna for satellite communication in motion follows the tracks of geostationary satellite, obtain L-band signal after the Ku band satellite signal received from geostationary satellite is carried out frequency conversion amplification by low-noise amplifier and be input to shunt, the L-band signal received is divided into two-way by shunt, wherein a road is to Radio Beacon, the L-band beacon signal received is changed into the analog level of satellite-signal by Radio Beacon through signal processing, analog level becomes digital signal level output by numeral conversion, digital signal level is input in host computer by protocol converter, digital signal level is carried out resolving the magnitude of voltage converting signal level to by host computer, this signal level magnitude of voltage represents the signal intensity of the geostationary satellite that antenna for satellite communication in motion follows the tracks of, setting value internal with it for this signal level magnitude of voltage is compared by host computer；When signal level magnitude of voltage is not less than this setting value, illustrate that the geostationary satellite that antenna for satellite communication in motion is followed the tracks of does not interfere facing star；When signal level magnitude of voltage less than this setting value but persistent period less than minimal time value A, illustrate that the geostationary satellite that antenna for satellite communication in motion is followed the tracks of does not interfere facing star；When signal level magnitude of voltage is less than this setting value, and the persistent period is more than minimal time value A, enters step (2)；
(2) host computer is by protocol converter monitoring and control modem, host computer sends instructions to modem, closing the outgoing carrier of modem, if signal level magnitude of voltage is still less than this setting value, then modem keeps stopping outgoing carrier state；If signal level magnitude of voltage is not less than this setting value and time more than minimal time value B, then host computer sends instructions to modem, opens modem outgoing carrier, illustrates that the geostationary satellite that antenna for satellite communication in motion is followed the tracks of does not interfere facing star；Minimal time value A is 8-10s, and minimal time value B is 5-6s；
After completing above-mentioned steps, system completes a judgement cycle, judges the cycle subsequently into the next one.
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| CN107017936B (en) * | 2016-09-18 | 2020-07-28 | 水熊有限公司 | Satellite beacon finding method and device |
| CN108963418A (en) * | 2017-05-22 | 2018-12-07 | 星展测控科技股份有限公司 | A kind of Ku frequency range antenna for satellite communication in motion system |
| CN113382462B (en) * | 2021-05-20 | 2023-03-21 | 深圳市星楷通讯设备有限公司 | Multi-closed-loop power control system and control method suitable for satellite communication |
| CN114142916B (en) * | 2021-12-31 | 2024-05-14 | 深圳市星楷通讯设备有限公司 | Identification and confirmation system and method suitable for satellite signals |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101777695A (en) * | 2009-07-03 | 2010-07-14 | 南京迅诺电子科技有限公司 | Vehicle-mounted Ku wave band satellite communication small-bore antenna system |
| CN203340075U (en) * | 2013-07-29 | 2013-12-11 | 河北神舟卫星通信股份有限公司 | Ku-band low-profile satellite communication in motion vehicle satellite communication system |
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| KR100588702B1 (en) * | 2003-05-26 | 2006-06-12 | 기아자동차주식회사 | Method Controlling Block-Area in Portable Antenna System for Satellite |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777695A (en) * | 2009-07-03 | 2010-07-14 | 南京迅诺电子科技有限公司 | Vehicle-mounted Ku wave band satellite communication small-bore antenna system |
| CN203340075U (en) * | 2013-07-29 | 2013-12-11 | 河北神舟卫星通信股份有限公司 | Ku-band low-profile satellite communication in motion vehicle satellite communication system |
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Effective date of registration: 20160224 Address after: 100854 Yongding Road, Beijing, No. 52, No. Applicant after: BEIJING AEROSPACE WANDA HIGH-TECH CO., LTD. Address before: 100854 Haidian District, Beijing, box 142, box office, 403 Applicant before: China Aerospace Times Electronics Corporation The 13th Institute |
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