中文说明：
简介卫星姿态控制系统的模型，并针对该模型分析故障发生的特点，故障诊断的难点，以及可能发生故障的部位和故障的类型，给出故障检测的方法。
English Description：
This paper introduces the model of satellite attitude control system, analyzes the characteristics of fault, the difficulties of fault diagnosis, as well as the possible location and type of fault, and gives the method of fault detection