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55593401tiaosu_1
i dont know what there in it exactely but you ca check
- 2011-05-14 18:42:27下载
- 积分：1
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TSP---Copy
This is dynamic matlab code for tsp, an optimization program
- 2013-07-29 21:29:43下载
- 积分：1
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denoisingWavelet
Wavelet denoising
For using this code need to use signal toolbox and general toolbox in your matlab
In the first part of this assignment, we asked to obtain a (black-and-white) digital image of size
512 by 512 and then generate noisy image by adding a Gaussian noise but under the condition of
having SNR=20dB by select the suitable value of variance for Gaussian noise formula.
Second step is performing wavelet denoising using the hard thresholding (Use the db 6 for four
levels) in the condition of finding the optimal thresholding value of T in terms of the SNR obtained. It
means that, we should find the highest SNR value by finding the suitable value for threshold. Then we
asked to do the same process but this time using soft thresholding.
Finally for the last part of question one, we should compare the results of the obtained SNR
with the recommendations of 3*sigma for the hard thresholding and 3/2*sigma for the soft
thresholding.
- 2013-12-11 17:34:39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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tuxiangfenge-ZIP
图像分割程序，包含roberts，sobel和prewitt算法，很好用！(Image segmentation procedures, contains Roberts, Sobel and Prewitt algorithm, very good!)
- 2013-04-27 16:16:52下载
- 积分：1
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ARINC429
ARINC429通信技术的描述，介绍了ARINC429通信的基本概念pdf(ARINC429 Communication protocol introduced)
- 2014-12-03 09:20:51下载
- 积分：1
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larsmatlab
主要是lasso和lars的MATLAB程序，其中含有例子和数据。(Mainly lasso and lars MATLAB program, which contains examples and data.)
- 2014-11-06 20:47:42下载
- 积分：1
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matlab4
matlab 学习资料 第四章 matlab 绘图(Chapter IV of learning materials matlab mapping matlab)
- 2009-05-23 12:43:03下载
- 积分：1
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finitedf
finite difference demo code
- 2010-02-17 07:28:24下载
- 积分：1
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shuzichulixinhao
这是关于数字处理信号的MATLAB源代码，含有一些在数字信号处理中基本操作的源代码，希望对大家有所帮助。(This is on the digital processing of signals in MATLAB source code, contains a number of digital signal processing in the basic operation of the source code, I hope to help all of you.)
- 2009-05-23 21:24:47下载
- 积分：1
