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Wavelet
传统的信号理论,是建立在Fourier分析基础上的,而Fourier变换作为一种全局性的变化,其有一定的局限性。在实际应用中人们开始对Fourier变换进行各种改进,小波分析由此产生了。小波分析是一种新兴的数学分支,它是泛函数、Fourier分析、调和分析、数值分析的最完美的结晶;在应用领域,特别是在信号处理、图像处理、语音处理以及众多非线性科学领域,它被认为是继Fourier分析之后的又一有效的时频分析方法。 小波变换与Fourier变换相比,是一个时间和频域的局域变换因而能有效地从信号中提取信息,通过伸缩和平移等运算功能对函数或信号进行多尺度细化分析(Multiscale Analysis),解决了Fourier变换不能解决的许多困难问题。(The traditional signal theory, is based on Fourier analysis based on Fourier transform, and as a kind of global change, it has some limitations. In the actual application of Fourier transform people began to various improved, wavelet analysis produced. Wavelet analysis is a new branch of mathematics, it is functional, Fourier analysis, harmonic analysis, numerical analysis of the crystallization of the most perfect In the fields of application, especially in signal processing, image processing, audio processing as well as many nonlinear scientific fields, it is considered to be the Fourier analysis after another effective time-frequency analysis method. Wavelet transformation and Fourier transform, compared is a time and frequency domain and the local transform can effectively extract information from signal, through the telescopic peace shift etc operation function of the function ?
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- 2011-06-26 20:07:10下载
- 积分:1
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image_cut
简易的matlab截图代码,可以打开bmp图片并截图保存为bmp格式,可以输出有图片信息矩阵的txt文档。(Easy shots matlab code, you can open pictures and screenshots saved as bmp bmp format, you can output a picture information matrix txt documents.)
- 2015-03-24 22:07:47下载
- 积分:1
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t1
说明: MATLAB短时傅里叶变换和morlet小波变换(short-time Fourier transform and morlet wavelet transform based on matlab)
- 2017-01-08 19:09:42下载
- 积分:1
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tracking
说明: 基于QUARC系统,对轮式机器人QBot2进行轨迹跟踪控制(Trajectory tracking control of wheeled robot QBot2 based on QUARC system)
- 2021-01-02 22:48:57下载
- 积分:1
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id_Vg_v_as_param_new
在存在界面层的情况下,铁电存储器MFIS-FET结构漏极电流随界面层厚度变化的关系(Interface layer in the presence of the case, ferroelectric memory, MFIS-FET structure, the drain current with changes in the relationship between the interface layer thickness)
- 2010-06-24 11:04:46下载
- 积分:1
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Matlab
matlab30个小程序matlab30个小程序(matlab30 small programs small program matlab30)
- 2010-12-06 10:57:51下载
- 积分:1
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seismicwavetospectrum
将地震波转换成反应谱的程序。。。。。。。。。。。(seismic wave to spectrum..........)
- 2009-05-23 15:31:59下载
- 积分:1
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SOM
说明: som算法 组织神经网络用于图像分割matlab实现(som-organizing neural network algorithm for image segmentation matlab achieve)
- 2008-09-19 22:27:55下载
- 积分:1
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increase
说明: matlab GUI 放大曲线,并在新窗口中显示(matlab GUI amplification curve, and displayed in a new window)
- 2011-04-08 17:05:31下载
- 积分:1
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lqr_example
some example declaration for linear quadratic control
- 2015-01-13 18:02:54下载
- 积分:1