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EMD-Toolbox
EMD的Toolbox及使用方法
经验模态分解（Empirical Mode Decomposition, 简称EMD）是由美国NASA的黄锷博士提出的一种信号分析方法.它依据数据自身的时间尺度特征来进行信号分解, 无须预先设定任何基函数。这一点与建立在先验性的谐波基函数和小波基函数上的傅里叶分解与小波分解方法具有本质性的差别。正是由于这样的特点, EMD 方法在理论上可以应用于任何类型的信号的分解, 因而在处理非平稳及非线性数据上, 具有非常明显的优势。所以, EMD方法一经提出就在不同的工程领域得到了迅速有效的应用, 例如用在海洋、大气、天体观测资料与地震记录分析、机械故障诊断、密频动力系统的阻尼识别以及大型土木工程结构的模态参数识别方面。本工具书主要分以下几个部分：导论、非稳态信号介绍、一维时频信号分解、二维时频信号分解、时频影像信息提取等。
(Time frequency toolbox for use with MATLAB
The Time-Frequency Toolbox has been mainly developed under the auspices
of the French CNRS (Centre National de la Recherche Scientifique). It
results from a research effort conducted within its Groupements de Recherche
”Traitement du Signal et Images” (O. Macchi) and ”Information, Signal et
Images” (J.-M. Chassery). Parts of the Toolbox have also been developed at
Rice University, when one of the authors (PG) was visiting the Department
of Electrical and Computer Engineering, supported by NSF. Supporting institutions
are gratefully acknowledged, as well as M. Guglielmi, M. Najim,
R. Settineri, R.G. Baraniuk, M. Chausse, D. Roche, E. Chassande-Mottin,
O. Michel and P. Abry for their help at different phases of the development.)
- 2010-11-08 16:19:14下载
- 积分：1
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awgn1
给予QPSK调制的awgn信道调制与解调的matlab例程(Give QPSK modulation awgn channel modulation and demodulation matlab routines)
- 2013-08-15 14:29:09下载
- 积分：1
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Untitled3
根据实验数据设计K 均值聚类分析分类器。(Classification is based on experimental data analysis design K-means clustering.)
- 2014-12-18 08:15:58下载
- 积分：1
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CHAOGAOSI
研究表明超高斯分布更加贴近语音信号的实际分布，然而语音信号很难用单一的概率密度
函数准确描述，针对这一情况，提出了一种用超高斯混合模型对语音信号幅度谱建模的新方法，并推导了
基于此模型的幅度谱最小均方误差估的估计式。仿真结果表明：与传统的短时谱估计算法相比，该算法不
仅能够进一步提高增强语音的信噪比，而且可以有效减小增强语音的失真度，提高增强语音的主观感知
质量。 (Recent research indicates that the speech spectral amplitude distributions could
be fairly described with super-Gaussian probability density function. However, the complexity
of speech signal determines that the distribution statistics ofspeech signal could not be well
described by single simple function. Thus a super-Gaussian mixture model for speech spectral
amplitude is proposed, and with this model, a minimum mean-square error (MMSE) estimator for speech
signals spectral amplitude is derived. The simulation results show that this algorithm based on
Gaussian and super-Gaussian speech model could achieve better noise suppression and lower speech
distortion as compared with the conventional short-time spectral amplitude estimation algorithm. )
- 2014-01-18 10:13:52下载
- 积分：1
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SHUZI
数字信号处理，数字高通滤波器的设计（经典设计法）(Digital signal processing, digital high-pass filter design (classic design method))
- 2015-04-21 20:16:36下载
- 积分：1
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FEMandMATLAB
这是一本介绍结构分析的有限元法与MATLAB程序设计的书籍，适合研究生使用。(This is to introduce a structural analysis of the finite element method and MATLAB programming books, suitable for graduate students to use.)
- 2009-06-21 22:41:08下载
- 积分：1
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tfpart2
时频分析的toolbox的guide，可以用于<Matlab时频分析技术及其应用>一书(time-frequency analysis of the toolbox the guide, can be used)
- 2007-06-07 19:44:05下载
- 积分：1
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Sample
MATLAB 模拟布拉格光纤光栅反射谱，通过给出相关参数，模拟其反射谱的状态(MATLAB simulation of FBG reflection spectrum, through the relevant parameters are given to simulate the reflection spectrum of the state of)
- 2020-12-25 14:39:05下载
- 积分：1
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D_2CFAR
两部传感器，相互采用CA-CFAR性能分析，并比较了不同融合准则下的性能(Two sensors each other using the CA-CFAR performance analysis, and compare the performance of different fusion criterion)
- 2012-05-24 00:19:37下载
- 积分：1
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COLOUR
假彩色图像变换，分别求图像的R、G、B三个通道的图像(False color image transformation, image of R, G, B three channel of the image)
- 2013-12-19 10:35:23下载
- 积分：1
