PID控制系统

三相异步电机的SPWM矢量控制的mdl模型，采用的matlab 版本为matlab 2009(SPWM three-phase induction motor vector control mdl model, using the matlab version of matlab 2009)

多幅图像的加密技术 matlab源代码(image encryption technology Matlab source code)

this code is to learn more about the mattlab

物理里面进行数据处理，线性拟合，非线性拟合。画图分析的小李子(data process)

脉动风速时程的matlab功率谱估计，汉宁窗法(power spectrum)

qpsk mod and demodulater

PGPI(NUM,DEN,W,FI,A) plots the stability boundary locus L(KP,KI,W)in the (KP,KI)-plane for an LTI system with transfer function defined by its NUM, DEN coefficients and driven by a PI controller with transfer function, C(s)=kp+(ki/s). Frequency (W) gridding becomes important. Phase Margin, FI, and Gain Margin, A, can be defined. The method works for open loop stable or unstable, minimum or nonminimum phase systems. With Examples. Method and examples used are form "Computation of Stabilizing PI and PID Controllers" by Nusret Tan, Ibrahim Kaya and Dereck P. Atherton. MATLAB release MATLAB 7.5 (R2007b)

字符编码过滤，单纯的过滤器，解决乱码问题(Character encoding filter, a simple filter to solve garbage problem)

simulation of space vector modoulation using power simluink

这个matlab程序实现了牛顿插值 （Newton s Interpolation ）算法(The matlab program Interpolation Newton (Newton s Interpolation) algorithm)