Abstract: Real time delay identification for Time Delay System（TDS）, including networked control system and distributed control system etc, is a longstanding open problem in control engineering domain. An on-line and closed-loop identification method is proposed from an algebraic viewpoint to deal with the delayed input identification of networked control system in non-asymptotic distributional framework. Compared with the adaptive observer identification method in ideal condition and white noise condition, the favorable robustness and fastness properties are presented in the numerical simulations that demonstrate the effectiveness of this method.

Key words: time delay system, networked control, distribution function, identification

摘要： 针对网络控制系统、分布式控制系统等时间延迟系统的时延辨识问题，在分布函数理论框架下，利用输入信号和输出信号的卷积运算建立系统的时域模型，基于代数辨识理论和分布函数的性质设计了一种快速在线辨识输入信号时延的方法。在理想条件和白噪声环境下与传统的自适应观测器方法进行对比，通过数值仿真验证了该方法具有良好的快速性和鲁棒性。

关键词: 时延系统, 网络控制, 分布函数, 辨识