非均匀采样数据系统的量化控制  

Quantization Control for Sampled-Data Systems with Nonuniform Sampling

作　　者：刘英英[1] 

机构地区：[1]沈阳大学信息工程学院,辽宁沈阳110044

出　　处：《沈阳大学学报（自然科学版）》2015年第5期400-404,共5页Journal of Shenyang University：Natural Science

基　　金：国家自然科学基金资助项目(61473795);辽宁省教育厅资助项目(L2014480)

摘　　要：研究了信号量化的非均匀采样数据系统的建模、分析及控制问题.建立了更符合实际、更具一般性的数学模型.基于此模型,构建依赖于采样间隔界的Lyapunov函数,并使用新的分析方法有效地降低由量化误差及变采样等因素带来设计条件的保守性;给出采样间隔界及量化参数与稳定性之间的关系,提出动态量化控制器的设计方法.仿真算例说明了方法的有效性.The problems of modeling, analysis and control for sampled-data systems with signal quantization are studied. A more realistic and more general mathematical model for the systems is built, and based on this model, a Lyapunov functional which is dependent on the bound of sampling interval is constructed, and a new analytical method is used to effectively reduce the conservativeness of the design conditions brought by those factors of quantization error and variable sampling. The quantitative relation of sampling interval bound, quantization parameter and stability is given, and the design method for dynamical quantization controller is presented. A numerical example illustrates the effectiveness of the proposed method.

关 键 词：采样数据系统 非均匀采样 动态量化 镇定 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]