MATLAB_ChangYongSuanFa

基于SVM的人脸识别，识别率很高的，MATLAB代码，已验证完毕(SVM-based face recognition, recognition rate high, MATLAB code, has completed verification)

通过并行压缩进行二维信号压缩，提出了一种利用并行压缩传感技术对二维信号进行压缩的新方案。根据这个原理，译码器的重新构造可以并行进行。通过对二维信号进行某些排列，可以确保所有列具有大致相同的密度级别，并且可以使用相同的测量矩阵进行采样。这样可以避免二维信号的矢量化，从而大大减小测量矩阵的尺寸。我们证明，如果排列良好，重建均方误差的上限会更紧。为了说明这一方案，我们将其应用于视频压缩并使用不同帧的排列有两种：参考帧的基于Z字形扫描的排列和非参考帧的基于块测试的排列。仿真结果表明，在相同的压缩比下，峰值信噪比比比在无置换情况下可提高3-7db左右。(we propose a new scheme to compress 2D signals using parallel compressed sensing. According to this seheme, the reeonstruction at the decoder can be performed in parallel. By performing certain permutation on a 2D signal, all columns are insured to have approximately the same density level and can be sampled using the same measurement matrix. In this way, vectorization of a 2D signal can be avoided, and thus the size of the measurement matrix can be dramatically reduced. We prove that with a good permutation, we can have a tighter upper bound on reconstruction mean square error. To illustrate this scheme, we apply it to video compression and use two kinds of permutations for different frames: the zigzag-scanbased permutation for reference frames and the block-test-based permutation for non-reference frames. Simulation results show that under the same compression ratio, the peak signal-to-noise ratio can be improved by approximately 3-7 dB compared to the case without permutation.)

New matching pursuit-based algorithm for SNR improvement in ultrasonic NDT （signal process 中的文章，mp去噪）(New matching pursuit-based algorithm for SNR improvement in ultrasonic NDT (signal process in the article, mp denoising))

使用Matlab通信工具箱中的RCOSINE和 RCOSFLT函数设计升余弦滤波器，有效地抑制码间干扰。(Using Matlab communication toolbox RCOSINE and RCOSFLT raised cosine filter design function effectively suppress inter-symbol interference.)

VC++下调用matlab图形库函数进行绘图并显示到VC的图形界面中。(VC call Matlab graphics library functions and mapping indicates that the VC graphics interface.)

neural networks in matlab

说明：  车间调度编程matlab学习程序，有中文介绍。(Workshop scheduling programming)

matlab实现jpeg编解码，对学习jpegde 很有帮助(jpeg codec matlab implementation of the study jpegde helpful)

自学matlab的60个小程序，很有用的(Self-matlab 60 program, very useful)

MIMO-OFDM空时编码仿真 基于多收发天线 空时编码(Space-time coding MIMO-OFDM simulation)