return link user 中文意思是什麼
return link user
解釋
返回鍵路用戶-
The return link is that the signal retransmitted from the user aircraft to relay satellite, then transmitted the signal to the earth station
返回鏈路指用戶航天器經數據中繼衛星轉發信號,向地面站回傳航天信號。 -
The inter - link of tdrss contained forward link and return link. the forward link is the signal retransmitted from earth station to relay satellite, then transmitted the tt & c to the user aircraft
前向鏈路指地面站經數據中繼衛星轉發信號,向用戶航天器(包括成像偵察衛星、航天飛機與載人飛船等)發送跟蹤、遙測與控制指令。
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