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quaternion-wavelet-transform

于 2021-01-18 发布文件大小:4KB

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下载积分: 1 下载次数: 74

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代码说明：

四元数小波变换。对图像进行四元数小波域变换，并根据变换后得到的四个部分进行幅度相位分析。(Quaternion wavelet transform.Including image analysis via quaternion wavelet domain,such as one magnitude and three angles.)

文件列表：

quaternion wavelet transform
............................\Decim.m,385,2016-04-18
............................\FB2D.m,860,2016-04-18
............................\FirstStageFilters.m,794,2016-04-19
............................\Inter.m,435,2016-04-18
............................\iqwt.m,323,2016-04-19
............................\magphaz.m,1157,2016-04-19
............................\NextStageFilters.m,665,2016-04-19
............................\pconv.m,352,2016-04-19
............................\qwt.m,299,2016-04-18
............................\rem.m,47,2016-04-18
............................\Tree.m,638,2016-04-18

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tWavveletVCReh
通过设计Visual C程序源码对简单易懂的一维信号在加上了高斯白噪声之后进行Daubechies小波、Morlet小波与Haar小波变换，从而的到小波分解系数；再通过改变分解的到的各层高频系数数进行信号的小波重构达到消噪噪的目的。在这一程序源码实现的过程中能直观地理解信号小波分解重构的过程与在信号消噪中的重要作用，和在对各层高频系数进行权重处理时系数的选取对信号消噪效果的影响。可直接 (Design Visual C program source code on a simple one-dimensional signal with a Gaussian white noise Daubechies wavelet, Morlet wavelet and Haar wavelet transform, and thus to the wavelet coefficients and then change the decomposition to each storey wavelet reconstruction frequency coefficient of the number of signal to noise canceling noise. In the process of realization of this program source code can be intuitively understood the signal wavelet decomposition and reconstruction process and an important role in signal denoising, and the selection coefficient in the high frequency coefficients of the layers of the weight of processing noise cancellation signal impact. Can be directly)

2012-07-27 16:21:08下载

积分：1
Dual-tree_DWT_code
双树复数小波变换的滤波程序,在所有小波变换的程序中，该程序采用双变量模型能很好完成去噪功能(dual-tree complex wavlet transform is a good inshift wavelet transform)

2011-12-04 22:29:51下载

积分：1
feichouyangxiaobofenjie
1.实现非抽样提升小波包三层分解 2.有效解决了小波包分解频带交错问题 3.有效输出频谱图(1 non-sampling improved wavelet packet three decomposition. Effective solution to the wavelet packet decomposition band interlacing problems. Effective output spectrogram)

2013-03-19 20:24:53下载

积分：1
TAnalysis
说明：傅立叶功率谱法求纹理特征可解压缩后直接执行(Fourier power spectrum method for texture features can be extracted directly after implementation)

2006-04-09 09:28:27下载

积分：1
S变换小波变换的一种扩展 st
S变换是小波变换的一种扩展，有非常大的价值(S transform is an extension of wavelet transform, has a very large value)

2020-07-04 01:00:01下载

积分：1
radar programs
雷达系统设计部分信号处理程序，包括部分目标和干扰模型、匹配滤波、波形设计、多普勒处理、门限检测及恒虚警率等方面信号处理的程序(Signal processing program for radar system design)

2018-04-09 10:37:08下载

积分：1
Josephu
说明：用Java实现97提升小波变换，动态演示和可视化(Realizes 97 promotion wavelet transformation with Java, dynamic demonstration and visualization )

2010-04-29 08:07:05下载

积分：1
xierbotebianhuan
希尔伯特变换和小波包结合的齿轮箱故障诊断方法，里面有具体的介绍小波包的分层方法，非常详细，可以下下来看看(Hilbert transform and wavelet packet of gearbox fault diagnosis method, there is detailed introduction inside the layered method of wavelet packet is very detailed, can down and have a look )

2013-09-24 10:02:39下载

积分：1
3900001
本文研究的是利用奇异性指数实现对设备状态监视和故障预警功能。首先用LabVIEW 采集传感器电信号，然后对采集到的电信号进行小波变换得到信号包络奇异点的奇异性指数，即设备运行状态的特征值(In this research project, we use LabVIEW to do wavelet-transformation to the signal collected by sensors in order to get singularity index from the singular points of the particular signal’s envelope. Through comparing this eigenvalue to the figures in a standard database, we can know the functional status of the instruments. Not only the diagnoses are continuously displayed, but alarms about signs of dysfunction will also be raised in a proper way. In other words, both the supervision of the instrument and warning of dysfunction can be achieved)

2012-01-31 16:35:56下载

积分：1
wavelet_lab2
对图像做二维离散小波变换，分解级数为3级，并重构图像，不直接调用Matlab的dwt和idwt函数。(pair of 2-dimensional images DWT, decomposition of the three series, and Image Reconstruction, not directly call Matlab dwt and idwt function.)

2006-12-03 11:39:43下载

积分：1

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