基于有限时间的扇形界方法的量化估计(英文)  

Finite-horizon quantized estimation using sector bound approach

作　　者：魏丽[1] 张焕水[1] 付敏跃[2] WEI Li;ZHANG Huan-shui;FU Min-yue(School of Control Science and Engineering,Shandong University,Jinan 250061,Shandong,China;School of Electrical Engineering and Computer Science,The University of Newcastle,NSW 2308,Callaghan,Australia)

机构地区：[1]山东大学控制科学与工程学院,山东济南250061 [2]纽卡斯尔大学电气工程与计算机科学学院,澳大利亚新南威尔士州纽卡斯尔市2308

出　　处：《山东大学学报（理学版）》2012年第1期55-61,共7页Journal of Shandong University(Natural Science)

基　　金：Supported by the Taishan Scholar Construction Engineering by Shandong Government;the National Natural Science Foundation for Distinguished Young Scholars of China(60825304);the Major State Basic Research Development Program of China(973 Program)(2009cb320600);Yangtse Rive Scholar Bonus Schemes(31400080963017)

摘　　要：研究了具有对数量化器的离散时间系统的有限时间量化估计问题。利用扇形界的方法给出了量化误差,进一步设计了有限时间的量化估计器,使得对于由所有的量化新息给出的量化估计误差都在一个有限界之内,并且使得这个界在范数意义下尽可能的小。最后通过求解一个与量化新息有关的黎卡提方程得到了量化估计器。This paper is concerned with the finite-horizon filtering estimation problem by using the reductive information of the quantized innovations from the innovations. We consider the case where the quantizer is logarithmic, and an up- per bound of the estimation error covariance is derived for all the quantized innovations. The calculation of the filter in- volves solving a Riccati equation related to the quantized innovations.

关 键 词：离散时间系统 对数量化器 量化估计 扇形界 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]