中文摘要：

开展测试性分析与故障诊断策略设计是测试性设计工作的重要组成部分，能否通过测试性分析设计出最优的故障诊断策略直接影响着系统故障检测能力和故障隔离能力的提高。首先对某型导弹装备搜索雷达天线稳定系统的组成原理及工作流程进行了介绍，接着针对该系统诊断能力不足，不能对故障进行隔离的缺点，运用基于多信号模型TEAMS软件系统对天线稳定系统进行了测试性建模，并对系统的测试性进行了分析，最后设计出了合理有效的曲障诊断策略．

英文摘要：

Testability analysis and fault diagnosis strategy design are important parts of testability design for system. Whether designing an optimum diagnostic strategy through testability analysis directly affects the improvement of fault detection and isolation ability for systems. Firstly, in the paper, the composing principle and work flow of the search radar antenna stabilization system of certain missile equipment were introduced . Secondly, aiming at the shortcoming that the system＇s fault detection ability was insufficient and didn＇t has the ability of fault diagnosis, a testability model was designed and the testability of me system was analyzed by TEAMS which is based on multi-signal model. At last, a reasonable and effective diagnosis strategy was presented.