搜索资源列表
FRFT-suanfa
- 这是学习分数阶傅里叶变换,必须的算法 这是学习分数阶傅里叶变换,必须的算法-the of fragnaii or fft
fftplot
- FFT,即为快速傅氏变换,是离散傅氏变换的快速算法,它是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。它对傅氏变换的理论并没有新的发现,但是对于在计算机系统或者说数字系统中应用离散傅立叶变换,可以说是进了一大步。 设x(n)为N项的复数序列,由DFT变换,任一X(m)的计算都需要N次复数乘法和N-1次复数加法,而一次复数乘法等于四次实数乘法和两次实数加法, -FFT, fast Fourier transform which is a discrete fast
fft_gen
- FFT vhdl generic: I m new to vhdl, and I tried to use xilinx fft core, but when I try to simulate it in test bench using ise simulator, I get zero results. here is what I do: 1- from core generator I choose fft core and create .vhd & .vho &
fft
- fft analiza w Matlab M-file
aliasing_for_time_domain_signal.m
- This package contains scr ipt to calculate aliasing for given time domain signal. scr ipt to plot in time domain the function: x(t)=A0cos(2pif0t)+A1cos(2pif1t) where fs1=300 Hz and fs2=150 Hz (sampling rate) A0 and A1 are amplitude s signal (a
attack.m.tar
- Audio Feature Extraction routine. this routine extracts the attack time of an audio source, by extracting the timing (sample) of the highest peak. The archive inclues a routine to extract the fft and display it. Requires Voicebox for matlab.
FFT
- FFT 快速傅里叶 可以用于对输入的快速傅里叶 变换,这样方便使用者进行信号分析-Fast FFT matlab m files you can use it to FFT analysis as your input.
fftfenxi
- 对一个模拟信号进行fft变换,并求出其幅值图和相位图,对于fft初学者会有一定的用途-An analog signal fft transform, and find its magnitude and phase diagrams, for beginners there will be some use of fft
BPSK-DSSS-CDMA-FFT-Source-Code
- 这个附件中包括了几个有用的通信程序,包括一个跳频扩频系统的m代码,一个直接序列扩频通信代码DSSS和CDMA程序。-my english is very poor.
DIT-FFT
- 数字信号处理实验,快速傅立叶变换,内含有matlab实验m文件以及实验报告,供大家参考。-Digital signal processing experiment, fast Fourier transform, contains matlab experiment m documents and the experiment report for your reference.
radix3fft.m
- A radix-3 FFT for any N points. N is not limited to power of 3.
FFT-IFFT-LPF
- FFT/IFFT/LPF函数的调用,将三段代码分别保存为m文件,即可在matlab中调用函数。包含一个例子,为AM以及DSB的调制和解调。-FFT/IFFT/LPF of function calls, respectively for m documents preservation, can call functions of the matlab.
SSDXCORR.m
- a method to calculate the sum of square differenes using the normalised fft cross correlation
xitongfangzhen(s-function)
- 这是一个通信系统的仿真,是用SIMULINK的S-FUNCTION方式编写的,共有20个M文件,1个DOC文件,本系统的仿真设计到编码、调制、IFFT、上下变频、高斯信道建模、FFT、PAPR抑制、各种同步、解调和解码等模块,每个模块都用详细的代码和注释,并通过了系统性能的仿真验证了系统设计的可靠性,可以直接拿来仿真整个系统,也可来学习各个部分的设计。-This is a communication system simulation, is the S-FUNCTION SIMULINK ap
fft_cdf4.m
- pdf numerical inversion from cf via FFT-matlab source of pdf numerical inversion from cf via FFT
fft_call.m
- matlab source of FFT-based option pricing (Carr and Madan1999)-matlab source of FFT-based option pricing
frft.m
- FRFT的程序 与FFT相比有自由度的优势 在金融期权定价中可以应用-Fractional Fast Fourier Transform(FRFT)
FFTSim.m
- 仿真FFT参数对采用FFT算法分析信号频谱的影响。产生频率分别为2Hz,2.05Hz的正弦波合成信号,采样 频率=10Hz。根据(8-8)式,要实现分辨两个单频信号的目的,DFT的序列长度必须满足 。分别仿真3种 情况下的FFT变换:1)取 的128点数据,计算FFT;2)将128点 以补零的方式加长到512点,计算FFT; 3)取512点 ,计算FFT-fft simulation matlab
FFT
- 自己写的快速傅里叶变换,处理N点数据的傅里叶变换,含两个MATLAB的M文件,可直接使用-Fast Fourier Transform, write your own data of the N-point Fourier transform, containing two MATLAB M-files can be used directly
m
- 编写matlab程序,完成输入倒位序,输出自然顺序,按照时间抽选的基2-FFT算法程序的编写-Write matlab program, complete inversion input sequence, the output of natural order, in accordance with the time selected 2-FFT-algorithm procedures for the preparation