美国AEHF军事通信卫星推进系统及其在首发星上的应用

美国先进极高频（AEHF）项目将采用4颗运行于地球同步轨道（GEO）的AE—HF军事通信卫星。AEHF卫星的推进系统由远地点发动机、姿态控制发动机组和双模式霍尔电推进子系统组成。首发星AEHF-1是世界上首个采用霍尔电推进系统执行发射后轨道提升任夯的GEO卫星。AEHF-1卫星星箭分离后，远地点发动机未能正常工作，因此...

Propulsion system of USA AEHF military communication satellite and its application on AEHF-1 satellite

Four GEO AEHF military communication satellites will be employed in USA AEHF program. The propulsion system of AEHF satellite consists of apogee engine, attitude control engine assembly and dual-mode Hall electric propulsion subsystem. The first AEHF satellite, AEHF-1, is the first GEO satellite with Hall electric propulsion system for orbit raising after liftoff. Because of the malfunction of the apogee engine on AEHF-1 after the propulsion rocket was separated from AE- HF-1, the other two propulsion subsystems were used for orbit raising, while Hall electric propulsion system started in advance to maintain the satellite life. AEHF program, AEHF satellite and its propul- sion system, and the propulsion system application of AEHF-1 satellite is introduced, so as to provide a reference for using dual-mode Hall electric propulsion system for orbit raising and in-orbit position keeping of Chinese GEO satellites.