Fourier projects and source code

Stationnary/propagative components decomposition of a longitude/time signal with fourier harmonics in matlab

The following Matlab project contains the source code and Matlab examples used for stationnary/propagative components decomposition of a longitude/time signal with fourier harmonics . Split the signal S(SPACE,TIME) into its downward/upward space  propagating and stationnary components via a 2D Fourier decomposition.

Stft Matlab Code

The short-time Fourier transform (STFT), or alternatively short-term Fourier transform, is a Fourier-related transform used to determine the sinusoidal frequency and phase content of local sections of a signal as it changes over time.

The following matlab project contains the source code and matlab examples used for stft.

Inverse short time fourier transformation (istft) with matlab implementation

The following Matlab project contains the source code and Matlab examples used for inverse short time fourier transformation (istft) with matlab implementation. The present code is a Matlab function that provides an Inverse Short-Time Fourier Transformation (ISTFT) of a given spectrogram stft(f, t) with time across columns and frequency across rows.

Low sidelobe taper design for uniform linear arrays using the iterative fourier technique in matlab

The following Matlab project contains the source code and Matlab examples used for low sidelobe taper design for uniform linear arrays using the iterative fourier technique. SIDELOBESYNTHESIS computes for a linear array antenna with uniform element spacing an amplitude taper that matches the user defined sidelobe level (SLL) requirement.

Short time fourier transform (stft) in matlab

The following Matlab project contains the source code and Matlab examples used for short time fourier transform (stft). %% function [t,frequency,Power_spectrum]=fft_s(y,windowlength) %% Inputs : % y: input raw signal % windowlength: window length to take fast fourier transform, it is a % factor of smapling frequency for example one can enter a window length % half of the sampling frequency by enteríng 0.

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