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DWT_1D

于 2013-11-10 发布 文件大小:1KB
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  离散小波变换是指在特定子集上采取缩放和平移的小波变换,是一种兼具时域和频域多分辨率能力的信号分析工具。此变换运用可以缩放平移的小波代替固定的窗进行计算分析,主要应用于信号编码和数据压缩。(Discrete wavelet transform refers to the specific subset take scaling and translation on the wavelet transform, is a kind of multi-resolution ability both time domain and frequency domain signal analysis tool. This transformation can use zoom translational wavelet calculation and analysis instead of the fixed window, mainly used in signal coding and data compression. )

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DWT_1D.m,2383,2013-11-10

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  • remove-noise-by-wavelet-transform
    小波去噪,通过对含噪信号进行四层小波分解,此处利用db3小波系列,通过仿真发现可以很好的消除信号中的噪声(Wavelet denoising, the signal through four layers of noisy wavelet decomposition, where the use db3 wavelet series, the simulation found in the well to eliminate the noise signal)
    2011-05-10 14:18:49下载
    积分:1
  • Wavelet-transform
    基于小波变换的图像拼接。 本程序利用小波变换的原理实现图像的上下,左右以及斜方向的无缝拼接(Wavelet-based image stitching. The procedure to achieve the principle of wavelet transform image from top to bottom, left and right oblique direction and seamless)
    2011-10-25 20:56:23下载
    积分:1
  • xiaobobianhua
    小波变换与分数傅里叶变换理论与应用(冉启文)电子版,介绍了小波变换、多分辨分析、小波构造、时频分析、小波包、塔式算法、分数傅立叶变换等内容,是一本不错的教材。(Wavelet Transform and Fractional Fourier Transform Theory and Applications (Ran text) electronic version, introduced the wavelet transform, multiresolution analysis, wavelet construction, time-frequency analysis, wavelet packet, tower algorithm, the fractional Fourier transform, etc., is one The good teaching materials.)
    2021-04-19 20:58:51下载
    积分:1
  • Morlet_Matlab
    关于小波信号处理中的Morlet算法的Matlab程序(On the Morlet wavelet signal processing algorithms Matlab program)
    2021-01-05 17:18:53下载
    积分:1
  • wavelet-rebult
    根据小波变换后的模极大值 重建原始信号(To reconstruct the original signal based on wavelet transform modulus maxima)
    2013-04-13 12:50:17下载
    积分:1
  • shipinfenxi-
    用stft、小波变换、EMD分别对突变信号进行时频分析(With stft, wavelet transform, EMD mutations were signals of time-frequency analysis)
    2011-05-16 14:43:58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
  • 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
  • 5_3_lifting
    说明:  采用5/3小波提升算法编写的一维和二维信号小波分解与重构程序。给出了图象分解的演示示例。(using 5/3 wavelet algorithm to enhance the one-and two-dimensional wavelet decomposition and reconstruction process. Given the decomposition of images demonstration examples.)
    2005-11-22 21:31:26下载
    积分:1
  • CurveLab-2.1.2
    curvelet变换最新工具包,含有快速离散曲波变换的所有形式(包括基于usfft和wrapping和3dfdct)。功能强大,是学习曲波变换的好帮手。(curvelet transform the latest kit, containing the fast discrete curvelet transform all forms (including those based on usfft and wrapping and 3dfdct). Powerful learning curvelet transform is a good helper.)
    2010-09-16 20:55:56下载
    积分:1
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