及时发现卫星出现的异常是卫星在轨管理的一项重要工作,它关系到卫星在轨使用寿命.能够及时发现并判断卫星异常的方法有很多,本文对这些方法进行了研究,并将其归纳为2类,一类是基于遥测参数超限报警方法,另一类是故障诊断方法.分别对这2类方法从功能、效果、软件实现的难度进行比较,结果表明,在不同的管理和实现难度要求下,这些方法完成卫星管理的效果不同.另外,本文还提出了一种遥测参数相对判断算法,简化了报警门限设置,能够及时发现卫星任何参数突跳,是一种有效的卫星异常报警方法.%It is an important task to alarm faults encountered by an in-orbit satellite in a timely manner. This often has a significant impact on the in-orbit lifetime of a satellite. There are many methods to alarm and diagnose satellite faults when they do happen. This paper analyzes and classifies them into two types: one type based on abnormal alarms of telemetry data and the other fault diagnosis methods. The two types of methods are discussed in terms of functionality, effectiveness and software implementation complexity. The study results show that the effect of fault alarm and diagnosis depends on what method is used taking into consideration the difficulty of their implementation and management. Finally, this paper proposes a novel method to alarm faults efficiently, featuring improved performance.
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