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Description: 离散傅立叶变换已成为数字信号处理的重要工具，然而，它的计算量较大，运算时间长，在某种程度上却限制了它的使用范围。快速算法大大提高了运算速度，在某些应用场合已能作到实时处理，并且开始应用于控制系统。-Discrete Fourier Transform digital signal processing has become an important tool, however, the calculation of its larger, long computing time, but in a way limits the scope of its use. Fast Algorithm for greatly enhanced speed of operation, in some applications has been able to do real-time processing and control system began to be used.
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Size: 2048 |
Author: jiarend |
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Description: 一个基于支持向量机和傅立叶描述子的字符识别算法:傅立叶描述子表征字符的轮廓特征-One based on support vector machine and Fourier descriptors of the character recognition algorithm: Fourier descriptor contour characteristics characterization characters
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Size: 5120 |
Author: zzflash |
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Description: 基于matlab的短时傅立叶变换，有语音读取功能！-Based on the short-time Fourier transform matlab, have voice reading!
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Size: 1024 |
Author: wenhu |
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Description: elliptical Fourier Descriptors, 椭圆傅立叶描述子， 对shape匹配很有用，没有解压密码-elliptical Fourier Descriptors, elliptic Fourier descriptors for shape matching is useful, there is no decompression password
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Size: 3072 |
Author: xjtubaby |
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Description: 1995chun-ching shih的分数傅立叶变换文章.-1995chun-ching shih article of the fractional Fourier transform.
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Size: 215040 |
Author: baoyongq |
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Description: 矩形腔体谐振频率计算，含傅氏变换
是初学FDTD的好参考文献！-Rectangular cavity resonant frequency of the calculation, including Fourier transform is a good beginner FDTD References!
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Size: 110592 |
Author: zyyu |
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Description: 编程实现图像傅立叶变换和反变换，实现图像去除噪音-Programming image Fourier transform and inverse transform, image de-noise
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Size: 183296 |
Author: 郑文 |
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Description: 短时fourier变换 tfrstft计算离散信号x（t）-Short-time fourier transform discrete signals tfrstft computing x (t)
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Size: 2048 |
Author: yangjx |
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Description: matlab傅立叶变化实现高通或者低通滤波-matlab fourier changes to achieve high-pass or low pass filter
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Size: 21504 |
Author: Can |
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Description: 进行分数傅立叶变换的算法，通过该算法可以对函数进行任意分数阶傅立叶变换-For the fractional Fourier transform algorithms, the adoption of the algorithm can function for arbitrary fractional order Fourier transform
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Size: 749568 |
Author: 赵书凯 |
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Description: 傅立叶变换，等距离采样，等角度采样，轮廓提取，形态处理-Fourier transform, equidistant sampling, in terms of sampling, contour extraction, morphological processing
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Size: 2048 |
Author: Jason |
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Description: 本fortran程序用来实现对一维数组进行一维快速Fourier变换-The fortran program to realize the one-dimensional array to one-dimensional fast Fourier transform
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Size: 2048 |
Author: 王天华 |
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Description: 傅立叶变换的基本性质及证明过程及应用举例-Fourier transform the basic nature and demonstrate the process and application, for example
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Size: 241664 |
Author: 柳随风 |
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Description: 傅立叶变换-Fourier Transform
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Size: 777216 |
Author: 刘梦 |
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Description: 实验内容：
1．求下列3个模板的频率响应，并显示其三维图形；选择一幅图
像，利用这3个模板分别对该图像进行卷积运算，将卷积运算
获得的图像与原始图像进行比较，说明各模板的类型以及模板
（b）、（c）的区别与联系。
2. 选择一幅图像，对其进行离散Fourier变换，仅利用其相位谱重构原图像，然后仅利用其振幅谱重构原图像，比较实验结果；
选择两幅不同类型的图像，分别进行Fourier变换，交换二者的相位谱后求Fourier反变换，比较实验结果，说明图像Fourier相位谱的重要性。-Experimental contents: 1. Template for the following three frequency response and to show its three-dimensional graphics select an image using the three templates, respectively, of the image convolution operation, the convolution operation to obtain the images were compared with the original image to illustrate the template the type of template (b), (c) the difference with the contact. 2. Select an image, its discrete Fourier transform, only to use its phase spectrum remodeling the original image, and then only the use of its amplitude spectrum reconstruction of the original image to compare experimental results choice of two different types of images, respectively Fourier Transform, the exchange between the two after the phase spectrum for Fourier Transform, compare experimental results to illustrate the image of the importance of Fourier phase spectrum.
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Size: 1024 |
Author: syq |
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Description: 利用Fourier-Mellin变换进行配准，有帮助使用的说明-The use of Fourier-Mellin transform Registration, helpful description of the use of
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Size: 138240 |
Author: 郑锦 |
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Description: 在matlab环境下，用傅立叶描述子对图像作形状描述的matlab代码-In matlab environment, using Fourier descriptors to describe the shape of the image for the matlab code
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Size: 2048 |
Author: zlyzzf |
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Description: Fourier变换的C++，用Visual C++实现，选择一幅图片，再选择功能菜单项后会出现该图片的Fourier变换频谱-Fourier Transform C++, Using Visual C++ Achieve, select a picture, and then select the menu item will appear in the picture after the Fourier transform spectrum
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Size: 144384 |
Author: xinrui |
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Description: 傅立叶变换和逆变换的算法，c语言算法保证正确-Fourier transform and inverse transform algorithms, c language algorithm to ensure the correct
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Size: 1024 |
Author: 张学友 |
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Description: 傅立叶变换，可以进行谐波分析等运算，很使用，快速傅立叶变换-Fourier transform, harmonic analysis can be carried out, such as computing, it is the use of Fast Fourier Transform
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Size: 16384 |
Author: 张振 |
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