toolbox-tsp

V-Detector algorithm with tree-based structures

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. )

在matlab环境中，实现批量最小二乘算法(In the matlab environment, to achieve batch least squares algorithm)

空时码源程序。主要是matlab环境下，生成空时分组码(Space-time code source. Matlab environment is mainly to generate space-time block codes)

通过基2 实现fft变换 可自定义输入变量 带有详细注释(Achieved through the radix-2 fft transform the input variables can be customized with detailed notes)

说明：  想学习MATLAB的同志，可看一下该程序，有帮助有哦！( Wants to study Comrade MATLAB, may look that this procedure, has the help to have!)

image sccaling. sccaling the image rd blue and green. its not good dont download

阶跃信号与正弦信号调制，在同一张图纸上绘制四个子图。这是一个很基础的编程应用。(Step signal with a sinusoidal signal modulation, drawn with a drawing on four subgraphs. This is a very basic programming application.)

一个带案例对比的S-G滤波,红色为处理结果，绿色为无噪信号，蓝色为含噪信号(A S-G filter with case comparison)

matab 和C++联合用于SLSVM 很有用，比利时大拿弄出来的东西(matlab and C++ together for SLSVM)