余度伺服系统神经网络建模研究

针对余度伺服系统中的非线性和不确定性,进行了神经网络建模的研究.利用网络预测误差的相对平均值对神经网络的泛化能力进行了定量的分析.结合文中提出的动态递归网络,通过对三余度伺服系统的仿真,验证了本文提出的方法是可行的.     

直接控制式电动伺服机构分析与计算

介紹直接控制式电动伺服机构妁基本结构、工作原理、动特性、静特性及其主要部件的设计计算方法。重点叙述伺服电动机选择、滚珠丝杠减速器的分析计算和用信号流程图求解传递函数的方法。     

一种新型中药配方自动调配系统

本文介绍了作者作为系统软件的主要设计者研制成功的一种新型中药配方自动调配系统的研制。该系统已经在广东某中医院、北京多家医院付之使用多年,系统灵活可靠。     

基于80C196单片机的神经网络逆动态控制伺服系统

本文介绍一种以80C196单片机为核心器件的位置，速度，电流三环位置伺服系统，速度环采用了神经网络逆动态控制，利用基于神经网络的RPE算法进行速度环的动态辨识，具有很好的自适应性和较强的鲁棒性。     

运载火箭姿态控制系统冗余方案分析研究

针对提高运载火箭姿态控制系统可靠性问题，从姿态角速度信号获取及伺服系统回路设计两方面提出了故障吸收冗余方案模式，对其冗余配置、工作原理、可靠性问题进行了讨论，并对方案可行性进行了设计分析。     

冗余技术在火箭推力矢量控制伺服系统中的应用

论述了一种用于火箭推力矢量控制系统中的三余度伺服机构，介绍了其工作原理，并对其者了数学仿真分析及试验验证。     

Asymptotic tracking in uncertain Volterra systems

This paper studies the robust tracking problem for an uncertain Volterra system via the frequency-domain approach. Based on the knowledge that the steady-state response of a Volterra system under the sinusoidal input contains possibly infinitely many frequency components, it is shown that (1) for any specified finitely many frequency components possibly contained in the steady-state tracking error, there exists a linear controller that robustly annihilates these components; and (2) robust tracking is possible by a linear controller provided that the Volterra system of the closed-loop system is polynomial. These results can be viewed as a nonlinear analog of the well-known linear robust servomechanism theory developed in the 1970s.     

Performance limitations in the robust servomechanism problem for discrete time periodic systems

Fundamental limitations for error tracking/regulation are obtained for the robust servomechanism problem (RSP) for discrete time periodic systems. In studying this problem, the RSP for a multi-input/multi-output discrete time system is considered; application of these results is then made to the “periodic system robust servomechanism problem”, and explicit expressions for the limiting costs for error tracking regulation are obtained. These limitations can be characterized completely by the number and location of the non-minimum phase transmission zeros of the system's associated lifted system, together with a term which depends on the order of the system, the number of inputs, the number of transmission zeros and the system's period.     

The decentralized control expanding system problem

Suppose a controlled system denoted by S_old exists with the property that robust tracking and regulation occurs in each of the system's local control agents. We wish to examine the conditions under which a new subsystem and a new set of local control agents denoted by S_new can be connected to S_old, so that the new outputs and previous outputs are regulated, without the need for returning the original control agents. This problem is a generalization of the results obtained in [4] which deals with the case when the control agents of S_new are centralized.