摘要: |
本文讨论跟踪及数据中继卫星系统的正反向通信链路。包括:1)S波段多址勤条链路的相控阵天线地面多波束形成自适应对准;2)把TDRS上的30个单元天线的接收信号转回地面并保证各路之间相对相位,振幅的稳定;3)Ku波段单址勤务链路中TDRS与用户飞行器天线相互捕获与跟踪;4)扩频-测距码的快捕。 |
关键词: 跟踪 数据中继卫星 伪码快速捕获 TDRSS 飞行器 |
DOI:10.3969/j.issn.1001-893X. |
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基金项目: |
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TDRSS Forward Link and Return Link |
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Abstract: |
s:This paper discusses TDRSS forword link and return link. The main contents are:1,To use an on-board 30 elements phase array antenna to form S-band multiple beams for the TDRSS return link S-band multiple access(SMA) service.2,The signal received by each element is relayed to ground station by FDM communication subsystem which can ensure the stability of relative phase and amplitude of element signals.3.The acquisition and tracking of the antennas of TDRSS and user for Ku-band single access(KuSA) service .4,The fast acquisition of spread spectrum-ranging code. |
Key words: TDRSS,PN-Code Fast Acquisition., |