基于对数量化的网络时滞系统的稳定性与可镇定条件  

Stability and Stabilization for Networked Time-Delay Systems Using Logarithmic Quantized Measurements

作　　者：鲁仁全[1] 魏强[1] 薛安克[1] 

机构地区：[1]杭州电子科技大学自动化学院,杭州310018

出　　处：《江南大学学报（自然科学版）》2010年第4期395-399,共5页Joural of Jiangnan University (Natural Science Edition)　

基　　金：国家基础研究计划973项目(2007CB714000);浙江省自然科学基金项目(Y1080854);国家自然科学基金项目(60874053)

摘　　要：研究了基于对数量化器的网络时滞系统的稳定性和可镇定条件,在研究中分析了测量信号的量化,以及量化后的数据经过非完美的频道传播时有数据损失的情况。针对量化误差和数据损失,设计了控制器和观测器并使得闭环系统渐近稳定。最后,数值仿真例子验证了此方法的有效性和可行性,得出了量化误差、数据丢包概率与控制器增益矩阵的关系。This paper deals with the problems of stability and stabilization for networked time-delay systems.In our research,two cases must be solved,that is,the quantized measurement and date-loss,which occurs when the quantized signal is transmitted in the unreliable channel.To cope with the quantization error and the loses,the observer and controller we design is to make the closed-loop systems asymptotic stability.Finally,the numerical examples illustrate that the proposed approach is effective and feasible,and relationship between the quantized density,the probability of event packet-loss and the control gain matrix is shown.

关 键 词：网络时滞系统 量化误差 数据丢包 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]