PCA-and-rebuild

卷积编码和viterbi译码程序，绝对可用，完全中文注释(none)

P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理(P0311 : use Butterworth (Butterworth) low-pass filter on the noise in the image smoothing)

Software Ultra sim, Software Ultra sim

基于PCA的人脸识别的Matlab程序，详细代码，简单易懂(PCA-based face recognition Matlab procedures, detailed code, simple and easy to understand)

神经网络matlab实现各种hop(Hopfield)算法(hopfield,ANN)

非线性光纤光学中用来仿真二阶色散、三阶色散以及SPM的程序，对刚开始进行科研的人有很大帮助。(Fiber optics used for simulation of nonlinear second-order dispersion, third-order dispersion and SPM process right to conduct scientific research in the beginning there is a great help.)

说明：  matlab 对基于形状的图像检索的算法 其中以七个不变矩为主要方法！！！！！！(matlab shape-based image retrieval algorithm for which the seven invariant moments as the main method! ! ! ! ! !)

改进后的游程编码，可以继续量化编码转化为二进制数据流，针对一些较为接近的数，通过合适的阈值设定可以近似，从而大大压缩数据流(The improved run-length coding, can continue to quantify the code into binary data stream, for some of the more close to the number set by appropriate threshold can be approximated, thereby greatly compressed data stream)

ChunmingLi编写的levelset程序，主要用于图像分割。(ChunmingLi levelset prepared by the procedure used mainly for image segmentation.)

Far field of rectangular piston transducer