Description: 快速傅立叶变换和离散余弦变换的简单实现，有一些小问题，就不修复了，呵呵。-fast Fourier transform and discrete cosine transform a simple, and it is only a small problem, not repaired, huh. Platform: |
Size: 357376 |
Author:asly |
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Description: TMS320C54系列DSP的256点快速傅立叶变换源代码，可以直接运用于54系列DSP。-TMS320C54 DSP 256 series point fast Fourier transform source code, 54 can be directly applied Series DSP. Platform: |
Size: 12288 |
Author: |
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Description: 本实验要求开发一个2-D FFT程序包，使其可以应用于后续的几个实验。这个程序需要完成的功能是用因子（-1）^(x+y)乘以输入图像以实现滤波的中心变换，并还要求用一个实矩阵乘以一个复数矩阵通过调用两个图像的乘法程序来实现对应元素的相乘，同时计算反傅立叶变换，得到的结果乘以（-1）^(x+y)并取其实部最后计算频谱。实验中用到傅立叶变换的基本公式，通过实验我们可以更加深刻的理解频域滤波的基础。-The experiment calls for the development of a 2-D FFT package so that it can be applied to a number of follow-up experiment. This process needs to be done is to factor the function (-1) ^ (x+ y) multiplied by the input image to achieve the center of filter change, and also requires a real matrix multiplied by a complex matrix by calling the two images of the multiplication process to achieve multiplication of the corresponding elements, calculating the anti-Fourier transform at the same time, the result multiplied by (-1) ^ (x+ y) and check the final calculation of the Department of the spectrum in fact. Fourier transform experiment used the basic formula, we can experiment more profound understanding of the basis of frequency domain filtering. Platform: |
Size: 142336 |
Author:jhm |
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Description: 一个小波+快速傅立叶变换的人脸识别程序，程序简单，效果好-A wavelet+ Fast Fourier Transform for Face Recognition Procedure Platform: |
Size: 2048 |
Author:Louis lu |
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Description: Program FFT.FOR
This FORTRAN program calculates the fast Fourier transform of a
timeseries (real and/or complex) or the inverse Fourier transform
of spectral components (real and/or complex). The FFT is based
on the algorithm given in Numerical Recipes, Cambridge University
Press, 1994.-Program FFT.FOR
This FORTRAN program calculates the fast Fourier transform of a
timeseries (real and/or complex) or the inverse Fourier transform
of spectral components (real and/or complex). The FFT is based
on the algorithm given in Numerical Recipes, Cambridge University
Press, 1994. Platform: |
Size: 71680 |
Author:梦回 |
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Description: 该C语言程序是对一个离散的函数进行快速傅里叶的变换，在工程上能够有很好的运用。-use fast fourier to transform a funtion in C language, which can be used widely in engineering affairs Platform: |
Size: 2048 |
Author:johnson chen |
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Description: to find the discrete fourier transform using the fast fourier algorithm, any sequence of lengths which are multiples of 2
simply append zeros to satisfy this requirement Platform: |
Size: 1024 |
Author:jachawk |
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Description: in this file you will learn the FFT understand the details of fast fourier transform percisely Platform: |
Size: 89088 |
Author:saber |
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Description: 有了傅立叶变换，我们可以从信号的频域特征去分析信号。尤其在无线通信系统 中，傅里叶变换的重要性就更加明显了，无论是设计者还是测试工程师，在工作中都会和傅立叶变换打交道。-With the Fourier transform, we can go to analyze signals the frequency domain characteristics of the signal. Especially in a wireless communication system, the importance of the Fourier transform becomes more apparent, whether designers or test engineers are at work and dealing with the Fourier transform. Platform: |
Size: 317440 |
Author:毛巴马 |
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Description: FT是一种FT的高效算法，称为快速傅立叶变换（fast Fourier transform），它根据离散傅氏变换的奇、偶、虚、实等特性，对离散傅立叶变换的算法进行改进获得的。(FT is an efficient algorithm for DEFT, called fast U Lie transform (fast Fourier transform). It is obtained by improving the algorithm of discrete U Lie transform according to the odd, even, virtual and real properties of the discrete Fourier transform. fast Fourier transform algorithm can be divided into time extraction algorithm and frequency extraction algorithm.First,the basic principle of FT is briefly introduced.) Platform: |
Size: 4170752 |
Author:wecol |
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Search - Fast Fourier Transform