MATLAByuyanjichu03

watershed gradient image processing

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. )

数值计算中的拟合方法 MATLAB程序 附带注释 亲测可用(linear method)

自适应均衡，matlab，实现，无错误，很实用。(Adaptive equalization, matlab, implementation, without error, is very practical.)

Chi Twichiya Khassék télécxhargéha darooooooori

说明：  类似QQ界面开发源程序。很好用。非常好！非常好！(QQ interface development similar source. Good use. Very good! Very good!)

psk调制与解调的m文件仿真，希望对大家有所帮助。(psk modulation and demodulation of the m file simulation, we want to help.)

语音信号的盲分离，是一个很好的在没有先验知识的情况下的分离程序！(voice signals in the blind separation is a good in the absence of a priori knowledge of the separation procedure!)

FEATURES ● UL, CSA & TUV safety approval. ● TV-5 rated available. ● UL Class F (155℃) coil insulation type available. ● Nominal power 360 mW. ● Operating power 200 mW. ● Heavy current up to 12 Amps.

通过学习LDPC编译码原理，编写了LDPC码的编译码程序。通过此程序可以更好的实现LDPC码的仿真(in this passage we have write the program of edcoded and decoded of LDPC code.through it we can undersatand LDPC more.)