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说明：  4. 试说明卷积编解码的工作原理。请用Simulink仿真卷积编码，并用Viterbi译码的方法进行解码，其中的编码、译码全部是自己编写代码(S-Function方式)，不是调用Simulink的已有编码、译码函数。请在加性白高斯噪声信道中，画出比特信噪比与误码率的关系曲线。(4 Explain the working principle of convolutional encoding and decoding. Please use the Simulink simulation convolutional coding and Viterbi decoding method used to decode, in which the encoding, decoding all write your own code (S-Function mode), instead of calling the Simulink existing encoding and decoding functions. In additive white Gaussian noise channel, signal to noise ratio and bit error rate to draw the curve.)

内容包括：EMD去噪，小波去噪，有仿真实例(Contents include : EMD denoising , wavelet denoising, there are simulation examples)

非局部中值滤波 matlab代码,主要用于图像去噪，对于存在周期出现的图像有较好的效果，例如干涉图(Nonlocal median filter matlab code. It is mainly for image denoising and images with the existence of cycles are correspinding to good results, for example interferogram.)

人工鱼群算法是李晓磊等人于2002年在动物群体智能行为研究的基础上提出的一种新型方盛优化算法，该算法根据水域中鱼生存数目最多的地方就是本水域中富含营养物质最多的地方这一特点来模拟鱼群的觅食行为而实现寻优。算法主要利用鱼的三大基本行为：觅食、聚群和追尾行为，采用自上而下的寻优模式从构造个体的底层行为开始，通过鱼群中各个体的局部寻优，达到全局最优值在群体中凸显出来的目的。 这是一个鱼群算法的案例，希望大家可以有所收获(Artificial fish swarm algorithm is a new fangsheng optimization algorithm proposed by li xiaolei et al. on the basis of the research on intelligent behavior of animals in 2002. This algorithm simulates the foraging behavior of fish swarm according to the characteristics that the place with the largest number of fish survival is the place with the largest number of nutrients in the water area.)

简单的sparse coding的小程序，基本可以了解sparse coding的工作过程。(Simple sparse coding small procedures, the basic can understand the working process of sparse coding.)

Matlab通信仿真原理，中文的，是一本入门级别的，写的很详细，也有很多详细的例子(Matlab Communication simulation theory, in Chinese, is an entry-level, written in great detail, there are many detailed examples)

IEEE TRANSACTIONS ON SIGNAL PROCESSING定位与跟踪经典文献“Source Localization Using TDOA and FDOA Measurements in the Presence of Receiver Location Errors: Analysis and Solution”的Matlab程序。进行信号源被动定位与跟踪研究的童鞋可下载进行学习研究。(IEEE TRANSACTIONS ON SIGNAL PROCESSING positioning and tracking classic literature " Source Localization Using TDOA and FDOA Measurements in the Presence of Receiver Location Errors: Analysis and Solution" in Matlab.)

cpml thechnique for finite difference time domain

说明：  信道模型为带多普勒频移的瑞利衰落信道，关于线性插值的MATLAB仿真程序，并解调。(Channel model with Doppler frequency shift for the Rayleigh fading channel, on the linear interpolation of the MATLAB simulation procedures, and demodulator.)

本代码是matlab编写的用来实现矩阵分解的典型方法，来自于2014年cvpr的文章代码。(Matrix decomposition in cvpr 2014 about DAKM algorithm using matlab. The DAKM s algorithm is powerful for Matrix decomposition . Matrix decomposition in cvpr 2014 about DAKM algorithm using matlab. The DAKM s algorithm is powerful.)