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Laplace
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. )
- 2014-01-18 10:44:40下载
- 积分：1
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OFDM-MIMO
MIMO-OFDM系统的各个过程的程序代码，可以直接用(The program code of each process of MIMO-OFDM system can be directly used.)
- 2021-04-25 12:28:46下载
- 积分：1
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Turbo
一种Turbo编码的MATLAB仿真实现 通过使用MATLAB软件仿真实现了Turbo码编码,提高了对其高效优质的编码效率的认识(A MATLAB Simulation of Turbo codes to achieve through the use of MATLAB software simulation to achieve a Turbo-Coded, improve the quality of its high efficiency of the coding efficiency)
- 2009-05-07 22:15:01下载
- 积分：1
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matpower-with-introduce
matpower算例程序程序及详细的说明文件，方便改进算法(matpower study program procedures and detailed documentation to facilitate improved algorithm)
- 2020-09-05 10:08:05下载
- 积分：1
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ga_lm_bp
4-9-1的结构ga-lm的bp算法 有示例数值 不是拟合而是预测(4-9-1 structure of ga-lm bp algorithm is not fit but there are examples of numerical prediction)
- 2013-12-23 21:25:22下载
- 积分：1
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M-file
三个小程序，对BURG法估计信号空间谱进行了仿真分析，比较基础，通俗易懂(Three small procedures, BURG method to estimate the signal space spectrum simulation analysis, comparison basis, easy to understand)
- 2011-02-01 12:50:43下载
- 积分：1
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Fisher
Fisher是多元统计分析的常用的方法之一，判别分析方法可在各种领域得到应用。一般用于确定属于一个可观测量是什么类型。(Fisher method is one of the common methods of multivariate statistical analysis, discriminant analysis method can be applied in various fields. Usually used to determine what type of a observables belonging.)
- 2014-12-24 17:34:31下载
- 积分：1
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rapport_mas_09
Tous les fabricants de variateurs de
vitesse, qu’ils soient industriels ou bien
distributeurs de matériel à usage pédagogique
proposent des variateurs pour machine
asynchrone. Historiquement, sont apparus sur le
marché des variateurs dits à « U/f = constante »
et plus récemment les variateurs à contrô le
vectoriel de flux avec ou sans capteur.
- 2011-06-09 22:11:08下载
- 积分：1
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G-P
在求混沌参数中所需要用到的GP算法，求关联维数的程序。(Seeking chaotic parameter needed GP algorithm, find the correlation dimension of the program.)
- 2012-10-06 15:03:52下载
- 积分：1
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alidity-Measures-for-the-Fuzzy-Cluster
alidity Measures for the Fuzzy Cluster
- 2014-02-20 10:38:42下载
- 积分：1
