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wavelet-transform

于 2012-05-04 发布 文件大小:291KB
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下载积分: 1 下载次数: 126

代码说明:

  实现小波变换,小波滤波器,小波除噪等功能。(To achieve wavelet transform, wavelet filters, wavelet denoising function)

文件列表:

xiaobobaochuzao.m,414,2008-07-20
xiaobobianhuan.m,691,2008-07-20
xiaobochuzao.m,391,2008-07-20
xiaobolvboqi.m,325,2008-07-20
xiaobozengqiang.m,393,2008-07-20
小波变换图像处理结果.doc,316416,2008-07-20

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  • wave
    Harr小波具有紧支撑、零调和性和优良的正交性等优点,因此选择它作为小波变换的基函数。对采样数据进行4层小波包变换得到16维的特征样本。(Harr wavelet has compact support, zero reconcile and excellent orthogonality, etc., so choose it as the base function of wavelet transform. 4 layers of sampled data wavelet packet transform feature samples 16 dimensions.)
    2014-09-17 16:25:07下载
    积分:1
  • xiaobo
    关于小波变换的降噪处理,包括强制降噪,给定阈值降噪,默认阈值降噪等,并给出了对比图(Noise reduction processing on the wavelet transform, including mandatory noise reduction, noise reduction given threshold, default threshold noise reduction, and gives comparison chart)
    2021-05-14 11:30:03下载
    积分:1
  • ISARchengxiangfangzhen
    设定雷达和目标参数,选取目标中心与雷达的距离为参考距离,采取dechirp方式接收信号,直接对回波信号进行二维FFT得到的成像结果,并采用Keystone法(即重采样法)校正越距离单元徙动。(Set the radar and the target parameters, select the center of the target and the distance from the radar as the reference distance, take reception dechirp signal, directly on the echo signals, the imaging results obtained by the two-dimensional FFT, and the Keystone method (i.e., re-sampling) Vietnam correction range cell migration.)
    2013-05-20 15:43:22下载
    积分:1
  • wavelet
    用MATLAB对一语音信号进行小波分解,然后对其各层系数进行处理以达到小波抑制的目的,重构处理后的信号,画出波形分析;用MATLAB实现对一语音信号用不同小波进行分解,提取各层的高低频系数,画出各系数波形,并重构;用MATLAB对一图象分别用不同小波分解,观察高低频部分进行重构,比较重构误差,再进行阈值消噪,比较消噪前后图象;用MATLAB对一语音信号进行小波分解,分别用强阈值,软阈值,默认阈植进行消噪处理。(Wavelet decomposition and reconstruction)
    2012-05-03 14:41:04下载
    积分:1
  • 3
    说明:  故障行波波头识别:模极大值原理识别故障行波波头(Modulus maxima principles identified wave head)
    2013-09-23 11:35:05下载
    积分:1
  • feichouyangswt
    非抽样小波变换的程序,可以自己更改使用,去噪效果较好( UWT s program, you can change the use of their own, better de-noising)
    2015-01-26 10:39:24下载
    积分:1
  • Savitzky-Golay filter
    Savitzky-Golay滤波是一种工程应用数据处理中高效的滤波方法,能同时得到平滑后的数据和数据梯度。(Savitzky-Golay filter is an efficient filtering method in engineering application data processing, which can simultaneously obtain the smoothed data and data gradient.)
    2018-03-28 11:04:34下载
    积分:1
  • emd
    说明:  个比较经典的二维经验模式分解程序代码,适用于图像分解,加油(Comparison the classical two-dimensional empirical mode decomposition code for the image decomposition, refueling)
    2010-03-20 10:45:15下载
    积分:1
  • mdwt
    这是一个多维小波变换工具箱,列举了很多的实例.(This is a multi-dimensional wavelet transform toolbox, cited many examples.)
    2021-03-08 22:09:28下载
    积分:1
  • Wt2
    三次B样条小波变换 希望对大家的学习工作有帮助(Cubic B-spline wavelet transform we study and work)
    2012-06-29 14:14:23下载
    积分:1
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