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matlab1.rar
- matlab常用函数 傅里叶变换函数、傅里叶反变换函数、低通滤波函数、sigexpand扩展序列函数,matlab function commonly used Fourier transform function, the Fourier Transform function, low-pass filter function, sigexpand extended sequence function
ding
- 选取windows系统自带的ding.wav信号作为分析对象，在Matlab软件平台下，利用函数wavread对音频信号进行采样，记住采样频率和采样点数，听一下原始声音sound(y, fs, bits)。 （2）音频信号的频谱分析，先画出音频信号的时域波形；然后对音频号进行快速傅里叶变换fft(y,N)，N取32768，画出信号的频谱特性，加深对频谱特性的理解。 （3）根据频谱，反演时域特性，画出时域波形。寻找幅值最大的两个频率，此频率除以fft点数在乘以采样频率就是信号的主频，即可合
SimpleSENSEreconstruction
- 简单SENSE图像重建，即使通过反傅里叶变换重建出最终图像-The data was acquired from 4-channel array coil using EPI sequence (2-shot, matrix: 64X64, TE: 50 ms) at a 1.5T scanner. The code estimates the coil sensitivity profiles directly from the image with anatomical contrast b
fft_self
- 用matlab实现的一个快速傅里叶变换的函数。可以实现正变换和反变换 -it is a function developed under the matlab which can accompish the fast fourier transtorm in forward and inverse
mychange
- 基于MATLAB6.5的二维灰度图像处理源文件，M-file，运用傅里叶变换和傅里叶反变换进行幅度和频率的调整。-Based on two-dimensional gray-scale image processing MATLAB6.5 source files, M-file, the use of anti-Fourier transform and Fourier transform amplitude and frequency adjustments.
gaussQAM_snr
- 通信信号中编解码技术的研究，通过生成OFDM信号，经过快速傅里叶变换与反变换，最后用16QAM解调，计算信噪比。-Communication signal encoding and decoding techniques, but by generating OFDM signals, through the fast Fourier transform and inverse transform, and finally with 16QAM demodulation, signal to n
TFFT
- matlab实现傅里叶变换和傅立叶反变换-Implement fft and ifft
Gerchberg_Papoulis
- 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.
GUI
- 用matlab语言编写了一个GUI截面，通过该界面可以实现图像的傅立叶变换，反傅里叶变换，高低通滤波，以及把黑白图像转化成灰度图像等功能。-Matlab language with a GUI section, the interface can be achieved through the Fourier transform of the image, anti-Fourier transform, high and low pass filter, and the black and wh
Multipath-
- 多径传播的部分代码，包括傅里叶变换，傅里叶反变换，幅频和相频特性-Multipath propagation part of the code, including Fourier transform
fourier
- 通过图像，变换相位及幅度，验证傅里叶变换以及其反变换，-Verify the image by Fourier transform
st
- 广义S变换程序 广义S变换具有短时傅里叶变换与小波变换的特性 其反变换与FFT紧密相连-Generalized program generalized S transform S transform with short-time Fourier transform and wavelet transform features of its inverse transform is closely linked with the FFT
Untitled
- 这是一个数字滤波的程序，经傅里叶变换在频率域进行滤波，然后进行反变换-This is a digital filtering process, filter in the frequency domain by Fourier transform and inverse transform
signal-analysis
- 傅里叶变换和反变换用于信号分析,并附有信号处理结果-fourier transform applied in signal analysis
F2T
- qpsk matlab仿真 F2T 傅里叶反傅里叶变换-qpsk matlab simulation
New_IFFT
- 该程序实现对序列的快速傅里叶反变换和离散傅里叶的反变换-The program implements a sequence of fast Fourier transform and inverse discrete Fourier transform of the anti-
FFT
- 理解快速傅里叶变换和反变换的好资料，是在MATLAB环境下联系的例子-it is a good materials of understand the fast Fourier transform and inverse transform.
litijie
- 原始信号加入白噪声，进行傅里叶变换，然后得出频谱图，最后完成傅里叶反变换。-The original signal by adding white noise, Fourier transform, and then get the spectrum, and finally complete the inverse Fourier transform.
双矩形脉冲的正反傅里叶变换
- 双矩形脉冲的正反傅里叶变换 (1) 画出以上式子所定脉冲的时域波形; (2)画出信号的振幅谱 abs(sf);(3) 将第二步所得的频谱求傅里叶反变换，并画出其波形，并与原始信号对比;(Positive and inverse Fourier transform of double rectangular pulses (1) draw the above formula set by the pulse waveform; (2) draw the signal amplitu
fft_hilbert_Envelope
- 对信号进行fft变换，对变换后的信号进行滤波，，对滤波后的信号进行反变换，傅里叶反变换，对反变换后的信号进行希尔伯特变换，进而画包络谱。(fft filter hilbert translation)