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A novel unknown input reduced-order observer (UIRO) design scheme is presented. It is proved that unknown input appearing in measurement can be eliminated by a simple algebraic transformation. Then, a new UIRO design scheme is proposed via a transformation under no unknown input existing in measurement. Compared with other known results, the condition is weaker than others. So it was further reasonable. The design procedure proposed is simple and straightforward enough to be applied. An example is given to show its efficiency in fault diagnosis. 相似文献
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一种故障重构技术在导弹系统故障诊断中的应用 总被引:1,自引:0,他引:1
针对导弹姿态控制系统的故障情况,阐述了一种利用基于滑模观测器的故障诊断方法.该方法主要是对保持观测器处于滑动模态的等效输出注入进行分析.通过对观测器输出的正确分析,可以达到对故障的正确估计,避免故障误报和漏报.通过一仿真算例,证明了该方法的有效性. 相似文献
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