This paper takes hj - 1b satellite and onboard infrared camera scanning mirror as research objects . the influences on respective motion performance caused by the dynamic interactions between them are evaluated . the emphasis is put on the influence of satellite platform ' s attitude motion upon infrared camera scanning mirror ' s continuous scanning motion 本文以hj - 1b衛(wèi)星和其上的紅外相機(jī)掃描鏡為研究對象,分析兩者之間的動力學(xué)耦合對各自運動特性的影響情況,并著重分析了衛(wèi)星平臺姿態(tài)振動對紅外相機(jī)掃描機(jī)構(gòu)轉(zhuǎn)動的影響。