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1下载:
小波包提取滚动轴承故障能量特征的matlab程序,大家只要把采集的滚动轴承振动信号数据放入程序中即可使用,希望对大家有所帮助。-Bearing Fault wavelet packet energy feature extraction matlab program, we just put a rolling bearing vibration signal collected data into the program to use, we want to help.
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小波分析可同时从时域和频域两个方面对信号进行分析,结合包络分析十分适合滚动轴承的故障特征提取;基于双通道的全矢小波分析方法不仅对单通道小波分析方法具有兼容性,而且弥补了传统的基于单通道信
息进行旋转机械故障特征提取造成的信息量不完整、易导致误诊的弊端。结果表明,在针对滚动轴承外圈故障特征提取时,全矢小波分析方法较小波一包络分析方法具有一定的优势。 -Wavelet analysis simultaneously from the time domain and frequency doma
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程序主要实现了在下采样小波变换的基础上加入了灰度共生矩阵来实现图像纹理特征的提取-
Program achieved a lower sampling based on wavelet transform GLCM added to achieve the image texture feature extraction
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现在小波的发展越来越快,在小波的基础上又出现了超小波,轮廓波也是一种很重要的超小波,对于提取图像特征有很大的帮助-Now increasingly rapid development of wavelet, wavelet has emerged on the basis of super-wavelet contour wave is also a very important super wavelets for image feature extraction is very helpfu
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在小波对图像特征提取的基础上,现在又出现了一种超小波,曲波就可以帮组大家提取轮廓边缘等特征-In wavelet based on image feature extraction, and now there is a super-wavelet, Qu Bo can help set you extract edge features such as contour
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matlab实现在特征段提取后用小波变换进行特征提取-matlab realize the feature extraction section for feature extraction using wavelet transform
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基于gabor小波变换的图像检索程序。有特征提取、特征匹配,以及结果返回。-On gabor wavelet transform based image retrieval process. There are feature extraction, feature matching, as well as the results returned.
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小波包能量巨程序(已做归一化处理,用于对振动信号提取特征)-Wavelet packet energy giant program (normalization process has been done for the vibration signal feature extraction)
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基于纹理特征的图像检索源码,通过双树复小波进行纹理特征提取-Texture-based image retrieval source, through the dual tree complex wavelet texture feature extraction
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Colourhistogram
II. TEXTURE FEATURE EXTRACTION IN CBIR
An overview of the proposed CBIR system is illustrated
in Fig. 1. The proposed algorithm, Label Wavelet Transform
(LWT), is based on color image segmentation [1], and it is
an extens
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很有用的对心电信号进行小波处理提取特征-n Very useful for ECG feature extraction using wavelet processing
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一类shelet 波变换,在小波基础上的升级更准确-Very useful for ECG feature extraction using wavelet processing
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脑电处理中,特征提取的几个有用算法程序,包括小波熵、LZC脑电复杂度、互信息等,以上程序,我已将亲自运行,可以通过,便于大家做脑电特征提取,希望对大家有帮助-EEG processing, feature extraction algorithm several useful programs, including wavelet entropy, LZC EEG complexity, mutual information, the above procedure, I have person
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3.1语音信号的同态处理和倒谱分析30
3.1.1同态处理的基本原理30
3.1.2复倒谱和倒谱31
3.2离散余弦变换34
3.3Mel频率倒谱系数的分析37
3.3.1Mel滤波器组37
3.3.2MFCC特征参数提取38
3.4小波和小波包变换43
3.4.1小波变换43
3.4.2小波包变换44
3.4.3小波包算法45
3.4.4MATLAB中一维小波和小波包变换函数46
3.4.5MATLAB语音信号小波和小波包变换的例子49
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针对滚动轴承复合故障信号特征难以分离的问题, 提出将双树复小波变换和独立分量分析( ICA) 结合的故障诊断方
法 该方法首先将非平稳的故障信号通过双树复小波变换分解为若干不同频带的分量 由于各个分量存在一定的频率混叠, 对
故障信号特征提取有很大的干扰, 进而引入 ICA 对各个分量所组成的混合信号进行盲源分离, 从而尽可能消除频率混叠 最后
对从混合信号中分离出来的独立分量信号进行希尔伯特包络解调, 即可实现对复合故障特征信息的分离和故障识别-Aiming at the diff
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Gabor滤波。Gabor小波变换。图像特征提取算法。-Gabor filtering. Gabor wavelet transform
Image feature extraction algorithm.
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图像特征提取程序,小波分解提取纹理特征,颜色直方图,HSV空间的颜色直方图提取程序。-image feature extraction code on matlab, wavelet decomposed for texture feature, color feature, histogram, and hsv space color histogram
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这是一个基于小波包能量特征提取的小波分析。-Wavelet analysis based on wavelet packet energy feature extraction
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小波包能量程序,支持向量机组分类时,特征的提取,小波包能量-Wavelet packet energy program, support vector machine classification, feature extraction, wavelet packet energy
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小波分析在语音特征参数提取方面的应用,很实用,经测试!-Wavelet analysis in terms of the voice feature extraction!
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