Description: 逆短时傅立叶变换源代码.适合于非稳态的时频联合分析,可直接用于MATLAB编程,无解压密码.-inverse Fourier transform source code. Suited to the non-steady-state joint time-frequency analysis can be used directly in MATLAB programming, without extracting passwords. Platform: |
Size: 1586 |
Author:王杜 |
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Description: （1）用MATLAB开发的傅立叶变换以及逆变换的一个例子，测试通过无误。（2）C＋＋编写的傅立叶以及逆傅立叶变换程序源代码，测试通过。-(1) Using MATLAB development of the Fourier transform and inverse transform an example of the test correct. (2) C + + and inverse Fourier Fourier transform source code, test. Platform: |
Size: 5202 |
Author:孙中雨 |
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Description: （1）用MATLAB开发的傅立叶变换以及逆变换的一个例子，测试通过无误。（2）C＋＋编写的傅立叶以及逆傅立叶变换程序源代码，测试通过。-(1) Using MATLAB development of the Fourier transform and inverse transform an example of the test correct. (2) C++ and inverse Fourier Fourier transform source code, test. Platform: |
Size: 5120 |
Author:孙中雨 |
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Description: Description: Recent studies on Mathematical modeling of visual cortical cells [Kulikowski/Marcelja/Bishop:1982] suggest a tuned band pass filter bank structure. These filters are found to have Gaussian transfer functions in the frequency domain. Thus, taking the Inverse Fourier Transform of this transfer function we get a filter characteristics closely resembling to the Gabor filters. The Gabor filter is basically a Gaussian (with variances sx and sy along x and y-axes respectively) modulated by a complex sinusoid (with centre frequencies U and V along x and y-axes respectively). Platform: |
Size: 2048 |
Author:gz |
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Description: 用matlab编写的fft快速傅立叶变换及逆变换函数,其中flip1是供ditfft函数调用的倒叙子函数。-using Matlab fft prepared by the fast Fourier transform and inverse transform function, which is flip1 ditfft function call for the Warrior unreachable. Platform: |
Size: 1024 |
Author:柳艾飞 |
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Description: 这是用matlab实现的关于傅立叶变换及其反变换的实例.-This is achieved using Matlab on the Fourier transform and its inverse transform example. Platform: |
Size: 1024 |
Author:陈华 |
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Description: 逆短时傅立叶变换源代码.适合于非稳态的时频联合分析,可直接用于MATLAB编程,无解压密码.-inverse Fourier transform source code. Suited to the non-steady-state joint time-frequency analysis can be used directly in MATLAB programming, without extracting passwords. Platform: |
Size: 1024 |
Author:王杜 |
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Description: 采用MATLAB分析WAV文件。
步骤一：选择一个WAV文件作为分析的对象 。（ding.wav）
步骤三：进行 FFT变换并画频域图形 。
步骤四：进行该声波主要频谱的分析。
步骤五：根据该声音的频谱，反演时域图形 。（有失真）
步骤六：进行付立叶逆变换IFFT并画频域图形 。-WAV file analysis using MATLAB. Step One: Select a WAV file as the target of analysis. (Ding.wav) Step Three: Transform and painting to FFT frequency domain graphics. Step four: the main frequency spectrum of the acoustic analysis. Step 5: According to the sound spectrum, inversion of time-domain graphics. (With distortion) Step six: to carry out inverse Fourier transform frequency domain IFFT and painted graphics. Platform: |
Size: 64512 |
Author: |
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Description: 请认真阅读采用MATLAB分析WAV文件。
步骤一：选择一个WAV文件作为分析的对象 。（ding.wav）
步骤三：进行 FFT变换并画频域图形 。
步骤四：进行该声波主要频谱的分析。
步骤五：根据该声音的频谱，反演时域图形 。（有失真）
步骤六：进行付立叶逆变换IFFT并画频域图形 。-Please carefully read the WAV files using MATLAB analysis. Step One: Select a WAV file as the target of analysis. (Ding.wav) Step Three: Transform and painting to FFT frequency domain graphics. Step four: the main frequency spectrum of the acoustic analysis. Step 5: According to the sound spectrum, inversion of time-domain graphics. (With distortion) Step six: to carry out inverse Fourier transform frequency domain IFFT and painted graphics. Platform: |
Size: 64512 |
Author:李南 |
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Description: A matlab function that calculates the inverse short term Fourier transform with adjustable parameters. Platform: |
Size: 1024 |
Author:sam |
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Description: 1. 对图像进行傅里叶变换。
2. 根据傅里叶变换的结果去除图像的竖条纹噪声。
3. 对图像进行傅里叶逆变换，得到分割图像。
-1. For the image Fourier transform. 2. According to the results of Fourier transform to remove the image of the vertical stripe noise. 3. Inverse Fourier Transform of the images obtained segmented image. Platform: |
Size: 37888 |
Author:刘一霖 |
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Description: 二维傅里叶变换,对图像进行二维傅里叶变换处理-Two-Dimensional Fast Fourier Transform
The purpose of this project is to develop a 2-D FFT program "package" that will be used
in several other projects that follow. Your implementation must have the capabilities to:
(a) Multiply the input image by (-1)x+y to center the transform for filtering.
(b) Multiply the resulting (complex) array by a real function (in the sense that the
the real coefficients multiply both the real and imaginary parts of the transforms).
Recall that multiplication of two images is done on pairs of corresponding elements.
(c) Compute the inverse Fourier transform.
(d) Multiply the result by (-1)x+y and take the real part.
(e) Compute the spectrum. Platform: |
Size: 1024 |
Author:solo |
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Description: Gerchberg_Papoulis利用反复应用傅里叶变换与反变换及加入已知条件的迭代算法，解决带限函数外推。-Gerchberg_Papoulis using repeated application of Fourier transform and inverse transform and adding the known conditions of the iterative algorithm to solve band-limited function extrapolation. Platform: |
Size: 2048 |
Author:黄小雷 |
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Description: 1、 读取图像A和B，显示这两幅图像，对图像作傅立叶变换，显示频域振幅图像。作傅立叶逆变换，显示图像，看是否与原图像相同。
2、 设计一个简单的巴特沃斯低通滤波器（截止频率自选），对图像A作频域低通滤波，
再作反变换，观察两种不同的截止频率下反变换后的图像与原图像的区别。
3、 设计一个高斯高通滤波器（截止频率自选），对图像B作高频强调滤波，再作反变
换，观察两种不同的截止频率下反变换后的图像与原图像的区别.-1, the read image A and B, show two images, the Fourier transform of the image, display the amplitude of the frequency domain image. Inverse Fourier transform for the display image, to see if the same original image. 2, the design of a simple Butterworth low-pass filter (cutoff frequency selectable), the image A low-pass filter for the frequency domain, and then make the inverse transform, under two different cutoff frequencies observed inverse transform the image and the original image difference. 3, the design of a high-pass Gaussian filter (cutoff frequency optional), the high frequency emphasis filter for the image B, and then make the inverse transform, the difference image and the original image is observed under two different cutoff frequency inverse transformed. Platform: |
Size: 2048 |
Author:weiweizhi |
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Description: 声全息成像算法，通过傅立叶变换和逆傅里叶变换将采样平面信息传递到目标平面，并重建目标平面信息。(In this algorithm, the sampling plane information is transmitted to the target plane by Fu Liye transform and inverse Fourier transform, and the target plane information is reconstructed.) Platform: |
Size: 2048 |
Author:bby
|
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