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this is a MATLAB Simulation for a Adaptive PID controller based on a sliding mode for uncertain chaotic systems.

基于haari小波变换程序，程序中对彩色和灰度图像均可作处理。(Wavelet transform based on haari procedures, procedures for color and grayscale images can be handled.)

直接将秘密图像的高4bit隐藏在RGB载体图像的R,G,B层中所选的那一层的低4bit,并将秘密图像提取出来，最后显示。要求载体图像的大小大于等于秘密图像的大小，且秘密图像是二值或灰度图像(Directly to the secret image hidden in the high-4bit RGB vector images R, G, B layer, then a layer of selected low 4bit, and extracted secret image, the final show. Required size of the image carrier is greater than equal to the size of the secret image, and the secret image is a binary or gray image)

基于MATLAB语音信号采集与分析加上高频噪声并去噪声源程序。(Based on MATLAB voice signal acquisition and analysis with high-frequency noise to the noise source.)

说明：  全相位FFT与传统FFT对比图，包括幅值曲线 相频曲线(Comparison of all phase FFT and traditional FFT)

matlab code for image processing

智能天线中DOA估计的ESPRIT算法，用于对信号来向进行估计(smart antenna)

unsupervised kmeans clusetring algorithm of data

多目标粒子群算法，模拟传感器布置的，又需要的小盆友可以过来拿(MOPSO algorithm)

用mathematica画的彩色3D的机器猫。(3D color painting with mathematica of Doraemon.)