航天器工程
航天器工程
항천기공정
SPACECRAFT ENGINEERING
2011年
4期
45-49
,共5页
地球静止轨道卫星%测控%天线%测控信号覆盖区%仿真
地毬靜止軌道衛星%測控%天線%測控信號覆蓋區%倣真
지구정지궤도위성%측공%천선%측공신호복개구%방진
GEO satellite%telemetry tracking and command(TT&C)%antenna%TT&C signal coverage%simulation
星载测控天线是地球静止轨道卫星测控分系统的重要组成部分,对于星地测控链路通畅至关重要。根据地球静止轨道卫星测控任务的特点,简要介绍了测控天线的设计原则;基于单副天线的覆盖区分析,提出了采用两副天线组阵工作以提高测控信号覆盖区的建议,并分析了两副单元天线异频组阵与同频组阵工作模式,提高测控天线覆盖区的技术方案及对测控天线覆盖区的改善情况,对比给出了每种方案所占用的卫星资源及需要付出的代价。结果表明,两种技术方案均可提高卫星测控覆盖区。
星載測控天線是地毬靜止軌道衛星測控分繫統的重要組成部分,對于星地測控鏈路通暢至關重要。根據地毬靜止軌道衛星測控任務的特點,簡要介紹瞭測控天線的設計原則;基于單副天線的覆蓋區分析,提齣瞭採用兩副天線組陣工作以提高測控信號覆蓋區的建議,併分析瞭兩副單元天線異頻組陣與同頻組陣工作模式,提高測控天線覆蓋區的技術方案及對測控天線覆蓋區的改善情況,對比給齣瞭每種方案所佔用的衛星資源及需要付齣的代價。結果錶明,兩種技術方案均可提高衛星測控覆蓋區。
성재측공천선시지구정지궤도위성측공분계통적중요조성부분,대우성지측공련로통창지관중요。근거지구정지궤도위성측공임무적특점,간요개소료측공천선적설계원칙;기우단부천선적복개구분석,제출료채용량부천선조진공작이제고측공신호복개구적건의,병분석료량부단원천선이빈조진여동빈조진공작모식,제고측공천선복개구적기술방안급대측공천선복개구적개선정황,대비급출료매충방안소점용적위성자원급수요부출적대개。결과표명,량충기술방안균가제고위성측공복개구。
The onboard TTC antennas are important components of the TTC subsystem,and are critical for the link between GEO satellite and earth station.According to the specialties of the GEO satellite,some principles to design the TTC antennas are taken forward.The coverage of elemental antenna is addressed,and two cases to increase the coverage are put forward.The coverage of antennas for duel channels non-coherent TTC and for duel channels coherent TTC are discussed.Finally,the needed onboard resources and acquired benefits for both non-coherent TTC and coherent TTC are compared.The results show that both of cases can increase TTC coverage for GEO satellite.The results show that both of cases can increase TTC coverage for GEO satellite.