arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1005.3290math.OCcs.SYeess.SY
收藏

线性连续微分代数方程的最小最大状态估计

Minimax state estimation for linear continuous differential-algebraic equations

Taras Shevchenko National University of Kyiv(基辅塔拉斯舍甫琴科国立大学)

Sergiy Zhuk

AI总结:

针对具有不确定参数的线性连续微分代数方程,提出基于广义卡尔曼对偶原理和Tikhonov正则化的次优最小最大状态估计算法。

摘要:

本文描述了一种针对具有不确定参数的线性微分代数方程(DAE)的最小最大状态估计方法。该方法处理具有非平稳矩形矩阵和不确定有界确定性输入的连续时间DAE。观测噪声假设为零均值且未知有界相关函数的随机噪声。主要结果是广义卡尔曼对偶(GKD)原理和次优最小最大状态估计算法。GKD通过Young-Fenhel对偶定理推导得出。GKD证明最小最大估计与具有DAE约束的对偶控制问题(DCP)的解一致。后者是不适定的,因此通过Tikhonov正则化方法求解DCP,得到滤波器形式的次优状态估计算法。我们通过一个合成示例说明该方法,并讨论与脉冲可观测性的联系。

英文摘要:

This paper describes a minimax state estimation approach for linear Differential-Algebraic Equations (DAE) with uncertain parameters. The approach addresses continuous-time DAE with non-stationary rectangular matrices and uncertain bounded deterministic input. An observation's noise is supposed to be random with zero mean and unknown bounded correlation function. Main results are a Generalized Kalman Duality (GKD) principle and sub-optimal minimax state estimation algorithm. GKD is derived by means of Young-Fenhel duality theorem. GKD proves that the minimax estimate coincides with a solution to a Dual Control Problem (DCP) with DAE constraints. The latter is ill-posed and, therefore, the DCP is solved by means of Tikhonov regularization approach resulting a sub-optimal state estimation algorithm in the form of filter. We illustrate the approach by an synthetic example and we discuss connections with impulse-observability.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑