houghcircle

This program helps in kalamn filter falling body simlation with EKF

采用自相关法提取基音，里面有求取自相关的函数。(To extract the pitch of the autocorrelation method)

说明：  这个程序是光孤子传输的matlab程序，比较大， 是GUI界面的

说明：  DE算法整定PID参数，智能算法解决PID参数整定问题的例子。(DE for solving PID tunning)

基于simulink的预测控制仿真，很有借鉴意义。(Simulink simulation-based predictive control, useful reference.)

信号处理源码，包含常用的各种滤波器，功率谱计算，Z变换，线性卷积等，Matlab实现。(Signal processing source code that contains a variety of commonly used filters, power spectrum calculation, Z transforms, linear convolution and so on, Matlab implementation.)

this zip file used to subtract the background

说明：  数字通信调制信号模拟系统中常见通信信号的信号源(Digital communication modulation signal simulation system common source of communication signals)

基于MATLAB的夫琅禾费衍射演示。通过将衍射屏做成二值图并进行FFT变换得到衍射谱。(MATLAB-based Fraunhofer diffraction demonstration. Diffraction screen made by binary image and diffraction pattern for FFT transform. )

14节点无功优化。。。。。。。。。。。。。(1Optimal power flow of a 14-node system by using)