Description: In the frequency spectrum analysis of refined band selection, ZFFT and Chirp-Z transform are two commonly used methods. For the dense multi frequency harmonic components with serious interference, ZFFT can obtain high-precision signal parameters by increasing the thinning multiple and resampling, separating the frequency components of interference and correcting them.

Description: Matlab implementation of 8-point time-domain FFT and denoising with FFT image

Description: Fast Fourier transform. Tested successfully
goohear 2020-05-22 16:39:49
Description: Fast Fourier transform, which can transform the time domain into the frequency domain, and contains explanatory text
linhaiyuan 2020-05-20 19:15:29
Description: Relevant Devices This application note applies to the following devices: C8051F124, C8051F125, C8051F126, C8051F127

Description: Realization of FFT in MATLAB

Description: 8-point FFT with FPGA, The whole code is written by Verilog, mainly using adder and multiplier, which is easy to understand
USTBSUNSHINE 2020-05-10 13:22:14
Description: ARDUINO FFT,be used by Arduino uno
timeer 2020-05-06 09:50:53
Description: Matlab GUI FFT analysis source, for reference.
SnowRachel 2020-05-04 18:53:24
Description: fft stm32f103zet6 Screen display driver
111@. 2020-05-04 11:28:20
Description: The sinusoidal signal is sampled uniformly and analyzed by Fourier transform.
WHY卫 2020-04-30 09:53:10
Description: Fast Fourier transform (FFT) is a fast method to calculate the discrete Fourier transform (DFT) of a sequence or its inverse transform. Fourier analysis transforms a signal from its original domain (usually time or space) to its representation in the frequency domain or vice versa. FFT can calculate these transformations quickly by decomposing DFT matrix into product of sparse (mostly zero) factors.
dscdc 2020-04-17 15:07:46
Description: "FFT = fast fourior transform. This is a fast Fourier transform that is convenient for computer calculation. There is also a DFT, but because of its complexity = N ^ 2 >> FFT = NlogN, it is not used by computer algorithms. The purple one is the above. The corresponding value of the wave in the frequency domain (spectrum) We know that the square wave can use Fourier series ... "
erenselt 2020-04-17 07:10:20
Description: audio watermarking algorithm
erenselt 2020-04-17 07:07:21
Description: audio watermarking algorythm
erenselt 2020-04-17 06:54:47
Description: audio and image watermarking algorythms
Noah_zhou 2020-04-16 15:57:01
Description: Realize speech spectrum and FFT transform and get spectrum Make Time frequency analysis by short time Fourier transform
ojbk男友在雨中 2020-04-15 16:25:25
Description: The reading and writing operation of 5402 DSP peripheral flash is realized by C language; Master FFT and DTW algorithm, so as to realize the development of speech recognition system

Description: 1. The purpose of the experiment is to display the time domain waveform and frequency domain waveform in Plot before and after the filtering.
Yszcco 2020-04-12 19:24:15
Description: This program is automatically generated a sinusoidal signal after the fast Fourier transform calculation and image display.
acid55 2020-04-11 11:10:04
Description: avr microcontroller assemby fft alghorithm
acid55 2020-04-11 11:08:21
Description: avr fft assembly example

Description: Fast Fourier transform C + + implementation.
nlg171203 2020-04-02 00:38:53
Description: Matlab is used to simulate the butterfly operation structure of FFT, and the simulation results are compared with the FFT results of MATLAB