emd_x

说明：  matlab使用详解的书籍源码，对学习matlab非常有用！！(This is the source code of the book---Matlab shiyong xiangjie，it is very useful for matlab learners！！)

gmsk仿真程序，相干解调实现方法。。还是很好用的。。。(gmsk simulation program, to achieve coherent demodulation method. .)

Binarisation of Ancient Documents

传统的短时谱估计语音增强算法通常假设语音谱分量相互独立，没有考虑语音谱分量间的相关性。针对这 一问题，该文提出一种新的基于多元Laplace分布模型的短时谱估计算法。首先，假设语音的离散余弦变换(DCT) 系数服从多元Laplace分布，以此利用谱分量间的相关性；在此基础上，利用多元随机矢量的高斯尺度混合模型表 示，推导得到语音DCT系数矢量的最小均方误差(MMSE)估计的解析表达式；并进一步推导了基于该分布模型的 语音存在概率，对最小均方误差估计子进行修正。实验结果表明，该算法在抑制背景噪声和减少语音失真等方面优 于传统的语音增强方法。(The spectral components of speech are usually assumed to be independent in traditional short-time spectrum estimation, which is not the case in practice. Tosolve this problem, a new speech enhancement algorithm with multivariate Laplace speech model is proposed in this paper. Firstly, the speech Discrete Cosine Transform (DCT) coefficients are modeled by a multivariate Laplace distribution, so the correlations between speech spectral components can be exploited. And then a Minimum-Mean-Square-Error (MMSE) estimator based on the proposed model is derived using a Gaussian scale mixture representation of random vectors. Furthermore, the speech presence uncertainty with the new model is derived to modify the MMSE estimator. Experimental results show that the developed method has better noise suppression performance and lower speech distortion compared to the traditional speech enhancement method. )

EKF滤波算法估计预测模型和量测模型精度比较高(EKF algorithm prediction error estimation model and matrix )

数字基带传输仿真，关于a/d部分的仿真实习属于通信系统仿真的基本内容(Simulation of digital baseband transmission)

基于matlab实现人脸识别的稀疏表示SRC算法(Implementation of sparse representation SRC algorithm)

说明：  MUSIC APES等算法，根据现代信号处理及应用这本书上算法进行仿真(Music apes and other algorithms are simulated according to the algorithms in the book of modern signal processing and application)

this is a npso matlab site

region growing algorithm