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arXiv 1807.08604eess.SYcs.ROcs.SYeess.SPmath.OC
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卡尔曼-布西滤波器最优误差协方差的频域特性

A Frequency-Domain Characterization of Optimal Error Covariance for the Kalman-Bucy Filter

Royal Institute of Technology(皇家理工学院);City University of Hong Kong(香港城市大学)

Song Fang, Hideaki Ishii, Jie Chen, Karl Henrik Johansson

AI总结:

本文通过频域积分特性,揭示卡尔曼-布西滤波器最优输出估计误差协方差与噪声协方差的比值迹可由系统动态和噪声统计表达。采用解析函数理论分析代数里卡蒂方程,并与布德积分相关联。

摘要:

本文发现,卡尔曼-布西滤波器所获得的最优输出估计误差协方差与噪声协方差的比值迹可通过系统动态和噪声统计在频域中明确表达。为此,我们利用解析函数理论分析与卡尔曼-布西滤波相关的代数里卡蒂方程,并将其与布德积分相关联。我们的方法提供了一种分析代数里卡蒂方程的替代频域框架,并减少到各种现有相关结果。

英文摘要:

In this paper, we discover that the trace of the division of the optimal output estimation error covariance over the noise covariance attained by the Kalman-Bucy filter can be explicitly expressed in terms of the plant dynamics and noise statistics in a frequency-domain integral characterization. Towards this end, we examine the algebraic Riccati equation associated with Kalman-Bucy filtering using analytic function theory and relate it to the Bode integral. Our approach features an alternative, frequency-domain framework for analyzing algebraic Riccati equations and reduces to various existing related results.

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。

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