# Fourier series with taper in matlab

The following Matlab project contains the source code and Matlab examples used for fourier series with taper.
Fourier analysis with data windows (Tukey tapers).

The following Matlab project contains the source code and Matlab examples used for fourier series with sigma approximation.
Program FFTSIGMA plots Fourier series representations with sigma approximation.

The following Matlab project contains the source code and Matlab examples used for discrete cosine transform vs discrete wavelet transform.
This paper deals with the JPEG Encoder for image compression upon comparing the
performance of DWT compression with DCT compression.

The following Matlab project contains the source code and Matlab examples used for fast fourier transform & lpc.
First of all, we divide the speech signal into a number of frames.

The following Matlab project contains the source code and Matlab examples used for sift pitch detector.
This MATLAB exercise designs and implements a pitch period detector based on detecting and tracking peaks in the autocorrelation of the LPC error signal during regions of voiced speech.

The following Matlab project contains the source code and Matlab examples used for computes the autocovariance of two columns vectors consistently with the var and cov functions. .
autocov computes the autocovariance between two column vectors X and Y with same length N using the Fast Fourier Transform algorithm from 0 to N-2.

The following Matlab project contains the source code and Matlab examples used for autocorrelation pitch detector.
This MATLAB exercise implements a pitch period detection algorithm using the modified autocorrelation method with a specified center clipping threshold. It analyzes a designated speech utterance on a frame-by-frame basis, using a center-clipped, modified correlation analysis method.

The following Matlab project contains the source code and Matlab examples used for digital fractional order differentiator and integrator new iir type.
A new general IIR type digital fractional-order differentiator and integrator based on power series expansion of the trapezoidal (Tustin) rule.

The following Matlab project contains the source code and Matlab examples used for tools for data analysis in optics, acoustics, signal processing.
We present some basic programs written for the MATLAB environment for the analysis of optical and acoustic data and for signal processing.

discrete Fourier transform (DFT) converts a finite list of equally spaced samples of a function into the list of coefficients of a finite combination of complex sinusoids, ordered by their frequencies, that has those same sample values.

The following Matlab project contains the source code and Matlab examples used for zoom spectrum.
This function returns N point DFT samples of 2dw band of Fourier transform of a sequence.

The following Matlab project contains the source code and Matlab examples used for generalized goertzel algorithm.
The conventional Goertzel Algorithm can be used to compute individual DFT coefficients.

The following Matlab project contains the source code and Matlab examples used for discrete fourier transform one dimensional.
DFT is the frequency domain representation of a discrete digital signal.

The following Matlab project contains the source code and Matlab examples used for discrete fourier transform over hexagonally sampled data.
Data represented on hexagonally sampled lattices have many interesting properties.

The following Matlab project contains the source code and Matlab examples used for ideal low pass filter.
Ideal Low Pass Filter using Discrete Fourier Transform

The following Matlab project contains the source code and Matlab examples used for fourier reconstruction of bandlimited function.
According to shannon theory it is possible to reconstruct a band limited signal from its Fourier components provided it is sampled sufficiently...just to demonstrate this, posting a small example based on that

The following Matlab project contains the source code and Matlab examples used for dit radix 2 fft with bit reversal.
The routine display the outputs of intermediate butterfly stages

The following Matlab project contains the source code and Matlab examples used for a 32 point fft in embedded matlab using fixed point arithmetic.
DFT plays important role in DSP and used in wide variety of applications like correlation and spectral analysis.

The following Matlab project contains the source code and Matlab examples used for discrete fourier series without using fft function.
Comparison with fft function is also shown.

The following Matlab project contains the source code and Matlab examples used for fft filter clean your signals and display results!.
The function introduces the implementation of fft and ifft in filtering and cleaning of signals.

The following Matlab project contains the source code and Matlab examples used for near perfect reconstruction polyphase filterbank.
This set of files can be used to construct a polyphase filter bank with near perfect reconstruction.

The following Matlab project contains the source code and Matlab examples used for discrete fourier transform.
Discrete Fourier transform with both phase & magnitude plot

The following Matlab project contains the source code and Matlab examples used for discrete fourier transform of a finite sequence.
DFT transforms one function into another, which is called the frequency domain representation, or simply the DFT, of the original function (which is often a function in the time domain).

The following Matlab project contains the source code and Matlab examples used for radix 2 dft algorithm for real data.
Computes the DFT of N real values and returns the first
N/2+1 DFT coefficients. N is an integral power of two.

The following Matlab project contains the source code and Matlab examples used for circular convolution using dft idft.
Circular convolution using DFT-IDFT
1st sequence(*) 2nd sequence = IDFT(DFT of 1st sequence * DFT of second sequence)

The following Matlab project contains the source code and Matlab examples used for compute n x n dft matrix.
% dftmat = DFT matrix of order N x N;
% N = Order of the matrix
% computes the DFT matrix of orer N x N;
% DFT matrix is a n x n matrix defined as Wn=[(Wn)^km]
% Wn=exp(-j*2*pi/n)
%Reference: Multirate Systems and Filter banks by P.

The following Matlab project contains the source code and Matlab examples used for discrete fourier transform 2d.
Run this program with a small image of about 100x100 pixels its because though it works on image of any size but for large images the execution time is very high.

The following Matlab project contains the source code and Matlab examples used for dft easy computation and display.
Solves the difficulty of computing and visualizing the DFT of an array that can be caused by (a) the units of frequency, (b) the mirroring effect, (c) the complex nature.

The following Matlab project contains the source code and Matlab examples used for dft and idft.
finds DFT and IDFT of the discrete signal without using in built functions.It is an alternate algorithm to fast fourier transform(FFT)

The following Matlab project contains the source code and Matlab examples used for dft algorithm.
This matlab function computes the dft of a set of values and
returns the dft coefficients. This is a three butterfly radix-2
algorithm.