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QPSK
基于matlab的qpsk调制仿真 源代码(Matlab-based simulation of the source code modulation qpsk)
- 2009-04-26 11:04:32下载
- 积分：1
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extracting
EXTRACTING speech features using LPC
- 2010-12-19 01:58:10下载
- 积分：1
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matlabdePPTexp
说明： MATLAB的一些例子，PPT格式，方便易懂(MATLAB some examples PPT format to facilitate easy)
- 2006-04-19 21:16:41下载
- 积分：1
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MVDR
frequency estimation using MVDR algorithm
- 2013-02-06 13:14:24下载
- 积分：1
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FRACTION-FOURIER
分数阶变换课件，包括MATLAB实现函数，对比分析其利弊(Fractional conversion courseware, including MATLAB implementation function, comparative analysis of the pros and cons)
- 2013-09-06 10:47:34下载
- 积分：1
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nihe
关于拟合的程序，对学习信号处理的同学们很有帮助，做曲线拟合时很有用(On the fitting procedures, students learn useful signal processing, curve fitting is useful when doing)
- 2011-01-13 11:47:41下载
- 积分：1
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xinxishang
说明： ：将信息论中熵的概念应用到特征选择中，定义了两种信息测度评价特征——误差熵和混叠熵，然后阐述了两种定义的不
用物理意义，分析了计算熵中最关键的区间划分问题，并提出一种较好的区间划分方法。(: The concept of entropy in information theory applied to feature selection, the definition of information measure evaluation of two features- error entropy and mixing entropy, and then describes the two definitions do not have the physical meaning of the calculation of entropy in the range of the most critical partitioning problem and propose a better method of interval division.)
- 2010-04-19 18:25:18下载
- 积分：1
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pro1
sar成像算法 关于点目标仿真以及点目标成像 实验室教材(SAR imaging algorithm)
- 2013-04-24 11:31:33下载
- 积分：1
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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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1
说明： 一些基本的Matlab动画程序，可以使初学者了解动画程序的应用。(Some basic Matlab animation program that allows beginners to understand the application of animation process.)
- 2009-01-01 13:01:20下载
- 积分：1
