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butterfilter
matlab 上进行滤波器设计一个很好的例子(how to design filter )
- 2012-07-16 19:54:00下载
- 积分：1
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boshu
多用波束形成，性噪比、中心频率都可以修改(The use of beamforming, signal to noise ratio of the center frequency can be modified)
- 2013-03-15 15:41:24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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xhx
Jerk混沌序列转换为二进制后，序列的相关性分析 程序简单运行方便(After Jerk chaotic sequence converted to binary, correlation analysis program sequences to facilitate simple operation)
- 2015-04-01 15:59:30下载
- 积分：1
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GAS_factor_copula_toolbox_17feb16
时间序列copula工具箱，包含密度函数，分布函数，对数似然函数等等，主要正对二元copula(This zip file contains a collection of Matlab functions for research on copulas for financial time series. Some simple example code is given in copula_example_code.m . A table of contents is given in contents.xls . Briefly, the toolbox contains CDFs, PDFs, log-likelihoods and random number generators for many common bivariate copulas, including the Clayton, Gumbel, Normal, Student s t, Frank, Plackett and symmetrised Joe-Clayton (SJC) copulas. Basic code for time-varying Normal, Gumbel and SJC copulas is included. )
- 2016-03-25 21:29:56下载
- 积分：1
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imagefusion-matlab
涵盖了多种方法对多源图像进行图像融合的程序(Covers a wide range of multi-source image fusion process)
- 2010-08-17 16:52:23下载
- 积分：1
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HMM
Matlab隐形马尔科夫工具箱，Matlab隐形马尔科夫工具箱，Matlab隐形马尔科夫工具箱(Matlab隐形马尔科夫工具箱)
- 2009-10-14 21:58:29下载
- 积分：1
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matlab_MPSK
matlab实现，多进制数字调制，相移键控(matlab realize, M-ary digital modulation, phase shift keying)
- 2008-05-20 19:33:39下载
- 积分：1
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IIR_Filter
直接型IIR滤波器实现源代码，希望与大家共同分享！(Direct IIR filter source code, I hope to share with you!)
- 2008-12-10 09:02:34下载
- 积分：1
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1
说明： 基于lms算法的干扰自适应抵消LMS算法是基于最陡下降法的统计估计的最小均方值算法，令误差的均方值达到最小时的抽头系数的值即为最优解。LMS算法抽头系数w的变化方向为代价方程的负梯度方向。(Lms algorithm based on adaptive interference cancellation algorithm is the LMS steepest descent method based on statistical estimation of the least mean square algorithm, so that the mean square error to achieve the most hours of the tap coefficient value is the optimal solution. LMS algorithm for tap coefficient w, the cost equation changes in the direction of the negative gradient direction.)
- 2010-12-18 23:07:45下载
- 积分：1
