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cl
- 离散数据的快速傅里叶变换。读取一段数值模拟得到的时间历程曲线，进行fft变换，得到幅频曲线。-Fast Fourier transform of the discrete data. Read the section of numerical simulation of the time course of the curve, fft transform, the amplitude-frequency curve.
fftall
- 数字信号处理中的离散傅里叶变换用快速傅里叶变换算法实现（为按时间抽取FFT算法实现的程序；考虑到补零情况，进行信号频谱分析过程中可能出现的问题，例如混淆、泄漏、栅栏效应等）-Program of digital signal processing in the discrete Fourier transform using a fast Fourier transform algorithm (as achieved by the decimation-in-time FFT algorith
MATLAB
- 此模块为官网提供，使用MATLAB语言编写，实现傅里叶变换（FFT）功能。-This module is the official website, the use of MATLAB language, realize the Fu Liye transform (FFT) function.
Valve_FFT
- 以内燃机的气阀运动加速度为研究信号，对信号进行傅里叶变换，带注释易懂。附件包含气阀加速度时域数据、FFT程序。-Valve of the internal combustion engine acceleration signal to study the signal Fourier transform, with comments understand. Attachment contains valve acceleration time-domain data, FFT program.
ee
- 快速傅里叶变换 (FFT) 实现，给定信号x(t)=sin(2πf0t)，f0=50Hz，对x(t)以fs=200Hz进行抽样，抽样点数为N=16。编写程序实现对x(n)的快速傅里叶变换，求得相应的X(K)。-Fast Fourier Transform (FFT) to achieve a given signal x (t) = sin (2πf0t), f0 = 50Hz, for x (t) with fs = 200Hz sampling, the sampling points is
fresneldifferaction
- 快速计算菲涅尔衍射光场，将菲涅尔衍射公式转换为快速傅里叶变换FFT，可以直接嵌入程序中使用，对菲涅尔计算全息很有用！-Fast calculation of Fresnel diffraction field, Fresnel diffraction formula will convert the fast Fourier transform FFT, can be directly embedded program using the Fresnel CGH is useful! ! !
Desktop
- 快速FFT的算法,在做数字信号处理时，需要做频谱分析时需要用到的快速傅里叶变换的算法。-Fast FFT algorithm
kuai_su_shi_xian_fft
- 用Matlab实现快速傅里叶变换，保证好用，直接用MATLAB打开工程并运行就能出现仿真图，自己可任意更改FFT中的N点个数。-Matlab fast Fourier transform, make sure to use, directly Matlab open project and run the simulation diagram, can appear oneself can be arbitrary changes in number N point FFT.
New_FFT_DIF
- 该程序实现序列的快速傅里叶变换，并且它是属于基-2 FFT中的按频率抽选的FFT运算程序-The Fast Fourier Transform program sequence, and it belongs to the group-2 FFT decimation in frequency FFT operation program
DFT-FFT2
- 快速傅里叶变 (Fast Fourier Tranformation，FFT)是将一个大点数N的DFT分解为若干小点的D F T的组合。将用运算工作量明显降低， 从而大大提高离散傅里叶变换(D F T) 的计算速度。因各个科学技术领域广泛的使用了FFT 技术它大大推动了信号处理技术的进步， 现已成为数字信号处理强有力的工具-Fast Fourier Transform (Fast Fourier Tranformation, FFT) is a large number N of DFT i
fftchange
- 本例子清晰表达了傅里叶变换的基础及FFT变换的 要领，能清楚的了解FFT变换，观察频谱特征。-This example clearly expresses the foundation and essentials Fourier Transform FFT transform, can clearly understand the FFT transform, observed spectral characteristics
main
- 实现心电信号傅里叶变换处理、并显示原信号和处理后的信号-realized the FFT of ECG, and display the results
fftspectrum
- 傅里叶变换与频谱分析的matlab代码，用于时间序列分析。-matlab code for FFT and PSD
fft_emd
- 对仿真信号进行快速傅里叶变换，再进行经验模态分解，再对每个分量求FFT-Simulation signal fast Fourier transform, and then empirical mode decomposition, and then seek FFT for each component
ffttest
- 采样频率的FFT变换，可实现采样频率的傅里叶变换-FFT transform of sample rate
ffthanning
- 加hanning窗的FFT快速傅里叶变换源代码，完整，适合初学者-Plus hanning window FFT Fast Fourier Transform source code, complete, suitable for beginners
area_fft
- 通过空域快速傅里叶变换计算均匀线阵的波束方向图。-Get beampattern of ULA through Area FFT.
period_mean_fft
- 该函数使用快速傅里叶变换FFT计算序列平均周期-This function uses the fast Fourier transform (FFT) calculation of the average cycle sequence
stft_person
- 自己编写的短时傅里叶变换（STFT）程序，短时傅里叶变换可以获得非平稳信号的时频图，主要原理是用滑窗截取一段信号，认为这一段时间内信号是平稳的，对其进行fft变换获得频谱-I have written a short time Fourier transform (STFT) program, short-time Fourier transform can be obtained non-stationary signal frequency diagram, the main princip
r_3n3193
- 最近练习的一些matlab信号处理的小程序，包括傅里叶变换，降噪，反傅里叶变换，FFT等。-Recently a number of small programs exercise matlab signal processing, comprising a Fourier transform, noise reduction, inverse Fourier transform, FFT, etc.