本程序为基于BP神经网络的Pid调参方法，用于控制某时变系统，以提高系统的自适应性能-This program is Pid Scheduling method based on BP neural network to control a time-varying systems in order to improve the adaptive system performance

PID算法及调参，包含PID基本原理，如何调参，以及程序例程。(PID algorithm and parameter adjustment, including the basic principle of PID, how to adjust parameters, and program routines.)