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短时傅里叶变换matlab程序

于 2020-04-10 发布

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说明：短时傅里叶变换的MATLAB实现代码，有效完成时频分析(matlab implementation code of short-time Fourier transform to effectively complete time-frequency analysis)

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短时傅里叶变换matlab程序.doc, 15872 , 2020-04-10

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珏心懿雪普通会员
2023-04-22 05:50:05
回复珏心懿雪

没用全是网上能搜到的我们需要的是直接能用的代码啊

cyclostationary_toolbox
循环平稳信号是一类特殊的非平稳信号，其统计特征具有随时间呈周期变化的特点。旋转机械由于周期运行方式其振动信号具有循环平稳特性，因此利用循环平稳分析方法能够提取出在平稳假设下所不能得到的隐藏故障特征信息，为有效地分离和识别旋转机械早期微弱故障特征提供可能。(The cyclostationary signal is a special type of non-stationary signal whose statistical characteristics have a periodic variation with time. Due to the cyclical operation of the rotating machinery, the vibration signal has the characteristics of cyclostationary stability. Therefore, the cyclostationary analysis method can extract the hidden fault feature information that can not be obtained under the stationary assumption, which provides the possibility to effectively separate and identify the early weak fault features of the rotating machinery.)

2018-08-06 16:36:21下载

积分：1
Fast_Algorithm_of_Edge_Detection_Based_on_Lifting_
本文通过比较第一代和第二代小波算法特点,引入二代小波提升结构的概念,提出了一种基于二代小波提升结构的快速图像边缘检测算法对三次B样条小波基实现提升格式,通过计算大尺度下分解子图的模值和幅角来确定边缘经过实验比较,能比经典的边缘检测算法得出更精确的边缘图像,同时通过与基于第一代小波算法的边缘检测比较,基于二代小波提升格式的边缘检测算法计算更快速,更高效。(In this paper, by comparing first-and second-generation wavelet algorithm features, the introduction of second generation wavelet to enhance the concept of structure, a second generation wavelet-based structure to enhance the rapid image edge detection algorithm on the three B-spline wavelet lifting scheme to achieve through Calculation of large-scale mold subgraph decomposition value and increase the edge angle to determine the experimental comparison, than the classical edge detection algorithm to draw a more accurate edge image, at the same time with the first generation of wavelet-based edge detection algorithm comparison, based on the Second generation wavelet lifting scheme edge detection algorithm is faster and more efficient.)

2008-06-23 13:18:06下载

积分：1
ridge
本人自己编写的小波变换脊提取程序，可用与信号分析．欢迎指导．(I have written wavelet transform ridge extraction procedures, can be used with the signal analysis. Welcomed the guidance.)

2021-01-05 17:18:53下载

积分：1
SerialPortCommunication
matlab实现串口采样数据的实现曲线绘制，能够设置串口编号。(matlab SerialPortCommunication)

2012-11-19 15:07:32下载

积分：1
CurveLab-2.1.3
可用于曲波变换的工具箱，用于含噪声的图像的去噪过程,图像分解，有例子可直接运行。只可用于学术研究目的。(the Latest curvelet transform lab tool ，Non-commercial research use for Academics. Image decomposition, there are examples can be run directly.)

2013-10-31 11:06:28下载

积分：1
SAR
在实数域 ,对称、正交的紧支集非平凡单小波基不存在 ,而多小波把紧支集，对称性、正交性完美地结合在一起 ,使小波理论从标量扩展到矢量范畴。利用上述特点将多小波变换应用于 SAR 图像压缩。(In the real fields, symmetric, orthogonal set of nontrivial compactly supported wavelet basis does not exist alone, but more than the compact support wavelet, symmetry, orthogonality perfect combination, So wavelets theory extended Dao vector from scalar context. Use of these features will be more than SAR image compression wavelet transform.)

2010-08-13 16:13:02下载

积分：1
short-term-traffic-flow-predict
本文提出了一种Matlab环境下基Daubechies一5小波变换的灰色马尔可夫的短时交通流预测模型及算法 (In this paper, one kind Matlab environment Daubechies 5 wavelet transform gray Markov short term traffic flow prediction model and algorithm)

2020-08-04 15:48:35下载

积分：1
xiaobo
用迭代法生成haar子程序上以及信息隐藏的详细功能、包含内容说明(Iterative method to generate a the haar subroutine and information hidden features, including content description)

2012-04-17 17:22:01下载

积分：1
yizhixijiexishu
对信号进行小波变换，抑制系数小波滤波，采用了硬阈值滤波方法(right signal wavelet transform, wavelet filter coefficients inhibit use of the hard threshold filtering method)

2006-10-19 16:47:17下载

积分：1
image-comp-by-wavelet
this project by karen lees in 2002 is "image compression by wavelet" 7ayder..eng

2011-04-30 21:07:57下载

积分：1

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短时傅里叶变换matlab程序

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