此资料讨论了线性定常单输入单输出离散时间系统的最小方差自校正控制。通过实例仿真结果，表明了自校正控制系统既能很好的求出参数调节的自适应规律，又能使性能指标为最优。内容包括了数学推导和源代码M文件。-This information is discussed in the linear time-invariant SISO discrete-time system of minimum variance self-tuning control. By way of example simulation results show that the self-tuning control system can not only find a good adaptive parameter adjustment law, but also enable optimal performance. Including the mathematical derivation and M source code file.