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本文叙述 S 波段相参应答机,此应答机作遥测,跟踪和遥控用,满足哥达德宇宙飞行中心空间跟踪和数据网(STDNJ 的要求.
This article describes the S-band coherent transponder, which is used for telemetry, tracking and remote control to meet the requirements of the STDG space tracking and data network (STDNJ).