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针对基于输出反馈和具有有限区域信号量化的离散时间系统,进行了系统稳定性分析与量化参数设计的研究.首先,分别对状态观测误差系统和对象系统在有限区域对数量化作用下的系统渐近稳定性进行了分析,得到了相应的稳定性条件,接着针对对数型量化器,给出了两个系统稳定性之间的内在关联,同时得到了各有限区域量化器的量化区间上界值.在此基础上,得到了保证各子系统稳定的系统通信速率比值.最后,给出了在时变量化作用下基于状态观测的控制策略和仿真例子.
For the discrete-time system based on output feedback and signal quantization with limited area, the stability analysis and the design of quantization parameters are studied.Firstly, the system of the state observing error and the system of object under the quantification of finite area The stability of the system is analyzed, and the corresponding stability conditions are obtained. Then for the logarithmic quantizer, the internal relations between the two system stability are given. At the same time, the upper bound of the quantization range of the finite quantizer Based on this, the ratio of system communication rate to ensure the stability of each subsystem is obtained.Finally, the control strategy and simulation example based on state observation under time-varying quantification are given.