引用本文: | 曾诚,梁山,李洪兵,苏盈盈.离散时间系统零动态的研究现状和未来挑战[J].控制理论与应用,2013,30(10):1213~1230.[点击复制] |
ZENG Cheng,LIANG Shan,LI Hong-bing,SU Ying-ying.Current development and future challenges for zero dynamics of discrete-time systems[J].Control Theory and Technology,2013,30(10):1213~1230.[点击复制] |
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离散时间系统零动态的研究现状和未来挑战 |
Current development and future challenges for zero dynamics of discrete-time systems |
摘要点击 3276 全文点击 3152 投稿时间:2013-03-29 修订日期:2013-07-11 |
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DOI编号 10.7641/CTA.2013.30269 |
2013,30(10):1213-1230 |
中文关键词 零动态 稳定性 离散时间系统 信号重建 采样控制器 |
英文关键词 zero dynamics stability discrete-time systems signal reconstruction sampled-data controller |
基金项目 国家自然科学基金资助项目(60574003); 重庆市科委自然科学基金计划资助项目(cstc2012jjA40026); 中央高校基本科研业务费资助项目(CDJXS12170006); 贵州省科学技术基金资助项目(黔科合J字LKG[2013]46号). |
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中文摘要 |
在数字控制系统的分析与设计中, 零动态是一个被广泛关注的重要概念, 近年来取得了诸多新的理论与方法进展. 本文首先描述了离散时间系统零动态理论的研究背景和研究意义, 同时简要介绍了离散时间系统零动态理论所涉及到的3个相关问题, 如: 信号的采样与重建、连续时间系统的等价离散时间系统模型以及在离散连续时间系统过程中所需要的工具(q算子和±算子). 其次, 立足现有文献, 针对离散零动态的特点, 从线性离散时间系统和非线性离散时间系统两个方面全面而深入地介绍了近年来离散零动态研究工作的进展. 最后分析了零动态在数字控制系统分析与设计中的局限性以及出现的挑战性课题, 并指明未来工作的研究方向. |
英文摘要 |
Zero dynamics has been broadly concerned in the analysis and design of digital control systems, about which a number of novel methods and algorithms have been developed recently. We give a description about the research background and the significance of the zero dynamics theory for discrete-time systems, and briefly introduce several related issues of the discrete system zero dynamics theory, such as the signal sampling and reconstruction, discrete-time modeling of continuous-time systems, as well as the tools for discretization, i.e. q-operator and ±-operator. According to the current literature, we categorize comprehensively the current development of the discretization zero dynamics in linear and nonlinear discrete-time systems. Finally, restrictions and challenging problems of zero dynamics in computer-controlled systems
are put forward to readers, showing the future research directions in this field. |
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