摘要
红外地球敏感和陀螺是卫星姿态控制系统中重要的测量部件。两者的测量变量通过卫星运动学方程相关,因此其测量输出互相冗余,可以用于故障检测。当红外地球敏感和陀螺的测量输出不满足运动学关系时,可以确定两者之一出现了故障,但不能确定究竟是陀螺还是红外出现故障。本文介绍了一种基于多观测器的故障诊断方法,可以隔离红外地球敏感器和陀螺的故障。
The infrared earth sensors(IRES)and gyros are two kinds of important sensors in satellite attitude control system, the measured variables of this two kinds of sensors are correlative via satellite kinematics equation, which can be used for fault detection. Once the outputs of IRES and gyros don't meet the kinematics equation, one of them is faulty, but the fault sensor cannot be isolated. In this paper a fault diagnosis method based on multi-observer is presented, which can isolate the fault of IRES or gyros.
出处
《计算技术与自动化》
2003年第2期74-76,共3页
Computing Technology and Automation
