arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1708.08583eess.SYcs.SY
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一种线性/非线性分布式融合估计问题的新方法

A New Approach to Linear/Nonlinear Distributed Fusion Estimation Problem

Nanyang Technological University(南洋理工大学);City University of Hong Kong(香港城市大学);Zhejiang University of Technology(浙江工业大学)

Bo Chen, Guoqiang Hu, Daniel W. C. Ho, Li Yu

AI总结:

本文提出了一种新的分布式融合估计方法,针对线性时变系统和非线性系统中的有界噪声问题,通过构造方法和凸优化问题解决估计误差上界和最优加权融合准则设计。

摘要:

本文提出了一种新的分布式融合估计方法,针对线性时变系统和非线性系统中的有界噪声问题,通过构造方法和凸优化问题解决估计误差上界和最优加权融合准则设计。

英文摘要:

Disturbance noises are always bounded in a practical system, while fusion estimation is to best utilize multiple sensor data containing noises for the purpose of estimating a quantity--a parameter or process. However, few results are focused on the information fusion estimation problem under bounded noises. In this paper, we study the distributed fusion estimation problem for linear time-varying systems and nonlinear systems with bounded noises, where the addressed noises do not provide any statistical information, and are unknown but bounded. When considering linear time-varying fusion systems with bounded noises, a new local Kalman-like estimator is designed such that the square error of the estimator is bounded as time goes to $\infty$. A novel constructive method is proposed to find an upper bound of fusion estimation error, then a convex optimization problem on the design of an optimal weighting fusion criterion is established in terms of linear matrix inequalities, which can be solved by standard software packages. Furthermore, according to the design method of linear time-varying fusion systems, each local nonlinear estimator is derived for nonlinear systems with bounded noises by using Taylor series expansion, and a corresponding distributed fusion criterion is obtained by solving a convex optimization problem. Finally, target tracking system and localization of a mobile robot are given to show the advantages and effectiveness of the proposed methods.

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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