在组合导航系统工作时，子系统可能会出现某些故障。为了保证导航精度和工作的可靠性,设计的组合导航系统应该具有一定的智能容错能力，即具有故障检测、故障隔离和系统重构功能.-In the integrated navigation system work, there may be some subsystem failures. Navigation in order to guarantee precision and reliability, design of integrated navig