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Description: This function is written to understand and/or explain an fft algorithm and usage of radix2 procedure.
This function take the signal which you want to find FFT, for m bit
you can also call the function without entering a signal or number of points, because there is default values for y and m which are
y = sin(2*pi*50*t)+sin(2*pi*120*t)
m=3
you can see the steps of order reversing used as built-in function but non others. you will also see the taking butterfly tree steps.
for more information read the help file of function.
in future this can be improve as selective radix or any other feature you suggest please notice me for any sugestion.
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Size: 3072 |
Author: dairy |
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Description: 注释非常详细的FFT变换，用matlab实现两个正弦函数的区分，初学着都能看懂-Notes very detailed FFT transform, with the achievement of the two sine function matlab distinction, the novice can understand
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Size: 1024 |
Author: 王冰 |
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Description: Radix-2 Fast Fourier Transform, real or complex sin/cos transform
-Radix-2 Fast Fourier Transform, real or complex sin/cos transform
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Size: 40960 |
Author: dai |
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Description: an implementation of fft 1024 with cos and sin generated by matlab.
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Size: 21504 |
Author: Leith esti |
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Description: 用c++Builder编写的一个显示正弦波信号和傅立叶变换后的频谱波形工程-c++Builder FFT SIN
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Size: 392192 |
Author: 赵签 |
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Description: 利用傅立葉轉換計算核心的部份，再用sin,cos的方式以表顯示。-Calculated using Fourier transform part of the core, and then sin, cos the manner shown in the table below.
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Size: 2048 |
Author: shin |
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Description: 基于时间抽取的8~1024点FFT的程序及输入、输出，用TMS320C54x汇编编写，已通过调试，并对输入方波信号进行FFT变换，检验输出信号是否是一sin波形-Based on the time taken from 8 to 1024 points FFT process and the import, export, and to prepare a compilation TMS320C54x through debugging, and enter the square wave signal FFT transform, testing whether the output signal waveform is a sin
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Size: 20480 |
Author: iechshy1985 |
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Description: MFC下FFT用C++写的源代码,有图形显示,sin和fft频率的自由选择.图形界面-MFC under the FFT written in C++, source code, graphics, sin, and fft frequency of free choice. Graphical interface
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Size: 1888256 |
Author: 张刚 |
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Description: 流水线模数转换电路输出信号做fft后求SNR,SNDR的matlab程序-matlab fft program for SNR and SNDR of pipelined analog to digital converter（ADC）
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Size: 149504 |
Author: liu |
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Description: 用VB实现对文本文件中的数据进行离散的FFT变换，在两个窗口中分别显示指定区域的时域信号和FFT之后的频域信号。 并可以进行SIN,Triangle,Square三种简单波形的自我模拟变换。-Text file data discrete FFT, respectively, in the two windows display the specified area and time-domain signal after the FFT frequency domain signal. And can be SIN, Triangle, Square wave of self-simulation of three simple transformations.
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Size: 37888 |
Author: dongxiao |
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Description: 正弦信号发生器的应用及单边FFT处理，对如何应用正弦发生器有个全面认识-Sine signal generator applications and unilateral FFT processing
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Size: 10240 |
Author: shao |
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Description: 国信长天竞赛板CT117E FFT测单频率号频率 范围1K-40K-Guoxin long day contest board CT117E FFT frequency range of the measured single-frequency No. 1K-40K
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Size: 1843200 |
Author: liangfangzhou |
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Description: fft的快速实现，核心部分无任何耗时的sin,cos运算，所需要的数据初始化时全部已经计算好了。并且提供了fft的定点代码（这是很多fft不具有的），可以方便地移植到嵌入式和DSP环境-fft of rapid implementation, the core portion without any time-consuming sin cos operation, the initialization of the data needed all been calculated. And provide fft fixed-point code (which many the fft do not have), and can be easily ported to the embedded and DSP environment
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Size: 4096 |
Author: 罗龙智 |
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Description: Matlab程序，GUI窗口
用FFT程序计算有限长度正弦信号y=sin(2*pi*f*t) ,0<=t<=N*T-FFT program calculate the finite length of the sinusoidal signal y = sin (2* pi* f* t), 0 < = t < = N* T respectively the DFT results obtained and analyzed and discussed in the following cases: a) the signal frequency f = 50Hz, the sampling the credited with N = 32, the sampling interval T = 0.000625sb) signal frequency f = 50Hz, the sampling points of N = 32, the sampling interval T = 0.005sc), the signal frequency f = 50 Hz, the sampling points N = 32, the sampling interval T = 0.0046875sd) signal frequency f = 50Hz, the sampling points of N = 32, the sampled interval T = 0.004se) signal frequency f = 50Hz, the sampling points of N = 64, the sampling interval the T = 0.000625sf) signal frequency f = 250Hz, the sampling points N = 32, the sampling interval T = 0.005sg) c) a signal-post 32, to do a 64-point FFT
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Size: 12288 |
Author: moumiao |
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Description: 对原始正弦信号进行傅里叶变换与逆变换并给出结果-Fourier transform and inverse transform the original sinusoidal signals and gives results
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Size: 3072 |
Author: sulina |
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Description: Matlab程序，GUI窗口用FFT程序计算有限长度正弦信号y=sin(2*pi*f*t) ,0<=t<=N*T
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Size: 12780 |
Author: 693766534@qq.com |
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Description: FFT使用范例。
x=0.5*sin(2*pi*15*t)+2*sin(2*pi*40*t)。采样频率fs=100Hz，分别绘制N=128、1024点幅频图。-FFT usage examples. x = 0.5* sin (2* pi* 15* t)+2* sin (2* pi* 40* t). Sampling frequency fs = 100Hz, were drawn N = 128,1024 point amplitude-frequency diagram.
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Size: 1024 |
Author: 王军 |
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Description: 用差表法实现sin和cos函数，浮点运算实现采样点数可变化的fft函数-Realization of sin and cos functions, floating point differential table method of sampling points can be varied to achieve fft function
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Size: 1024 |
Author: 田承有 |
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Description: 正弦波的产生方法，以及fft频谱画图,初学者学习-The method of generating a sine wave, and the drawing fft spectrum
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Size: 1024 |
Author: wangwang |
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Description: 信号y=sin(2*pi*f1*t)+sin(2*pi*f2*t)加上信噪比为2高斯白噪声的傅里叶变换，分别画出时域和频域图-Signal y = sin (2* pi* f1* t)+ sin (2* pi* f2* t) plus noise ratio for two Gaussian white noise of the Fourier transform, respectively, to draw the time domain and frequency domain
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Size: 1024 |
Author: 杜锋 |
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