为有效提高捷联惯导系统可靠性 ,研究了捷联惯导系统故障诊断与处理技术 ,提出捷联惯导的容错技术应具有故障检测、识别、隔离和系统重构等功能 ,并介绍了直接比较测量法和奇偶向量法两种技术方案。指出 ,在实践中综合应用多种容错技术可明显提高系统可靠性 In order to effectively improve the SINS system reliability, the fault diagnosis and processing technology of SINS is studied. The fault-tolerant technology of SINS is proposed to have the functions of fault detection, identification, isolation and system reconfiguration. Direct comparison of measurement and parity method two technical solutions. Pointed out that in practice, the integrated application of a variety of fault-tolerant technology can significantly improve system reliability