随机时滞网络控制系统的后退时域估计（英文）

Receding horizon estimation for networked control systems with random transmission delays

中文关键词  后退时域估计  稳定性分析  随机时滞观测  观测重组

英文关键词  receding horizon estimation  stability analysis  random delayed observations  measurement reorganization

中文摘要

      本文考虑具有随机观测时滞系统的后退时域估计问题. 首先, 针对随机时滞网络控制系统, 运用观测重组技术, 将带有时滞的观测方程转化为无时滞观测方程, 得到一组新的无时滞观测序列. 在此基础上, 运用线性最小方差无偏估 计理论, 推导出后退时域估计器的批形式公式和迭代形式公式, 并给出稳定性分析. 通过具体的仿真实例, 对比现有卡 尔曼滤波器, 验证了所提出的后退时域估计器具有更好的跟踪能力.

英文摘要

      This paper is concerned with the receding horizon estimation problem for discrete -time systems with random delayed observations. Firstly, the random delay system is reconstructed as an equivalent delay-free one by measurement reorganization technique. Secondly, a batch form and a recursive form for receding horizon estimation are proposed on the basis of the new changed system and by minimizing a new cost function that includes two terminal weighting terms. Then based on the derived condition, the stability of the proposed receding horizon estimation is proved. Finally, a numerical example is given for illustration.