具有测量时滞的不确定系统的递推鲁棒滤波
发布时间:2018-04-10 06:02
本文选题:自动控制技术 切入点:数学归纳法 出处:《吉林大学学报(工学版)》2017年05期
【摘要】:针对模型参数随机不确定性和测量时滞现象,提出了一种基于垂直投影定理和新息分析的递推鲁棒滤波方法。该方法首先将原系统转化成一个含有跨时相关性噪声的随机不确定性系统,接着重新计算了新息,然后用数学归纳法证明所得到的新息是一个互不相关的序列,最后用新息分析和垂直投影定理获得了所期望的递推鲁棒滤波器。该滤波器设计方法不需要将跨时相关性噪声进行状态增广,因而计算量小、精度高。仿真实验验证了该方法的有效性。
[Abstract]:A recursive robust filtering method based on vertical projection theorem and innovation analysis is proposed for stochastic uncertainty of model parameters and measurement delay.The method first transforms the original system into a stochastic uncertain system with cross-temporal correlation noise, then recalculates the innovation, and then proves by mathematical induction that the obtained innovation is an unrelated sequence.Finally, the desired recursive robust filter is obtained by using innovation analysis and vertical projection theorem.The filter design method does not need to extend the state of the cross-time correlation noise, so the calculation is small and the accuracy is high.Simulation results show that the proposed method is effective.
【作者单位】: 南京航空航天大学航天学院;
【基金】:国家自然科学基金项目(61203030) 中央高校基本科研业务费专项基金项目(NS2017064) 南京航空航天大学引进人才科研启动基金项目(90YAH16033)
【分类号】:TN713
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本文编号:1729960
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