Discrete Fourier Transform Low/High Pass Filter
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function [g] = FFTPF1D (X,binsize, f, P)
Discrete Fourier Transform Low/High Pass Filter.
% This is a simply implement of such a filter for a given 1-D data.
X: the array of you data, each data point is a bin of signal
binsize: the bin size in your data data
f: the cutoff of wave length,
P: 1, or 0, true or false : true, low pass, which eliminating higher
than f frequence signals, false, high pass, which eliminating lower
than f frequence signals.
It could be easily modified into 2-D version, or translated into
R/S-language.
Example:
a=1:2:1000;
b=sin(a) + sin(2.*a) + sin(0.1 .* a) + ...
c=FFTPF1D(b, 2, 10, 1)
Author: Zhihua Zhang. invokey@gmail.com
Feel free to use and distribute this code for training or
academic propose.
Free download from Shareware Connection - function [g] = FFTPF1D (X,binsize, f, P) Discrete Fourier Transform Low/High Pass Filter. % This is a simply implement of such a filter for a given 1-D data.
Version: 1.0 | Size: 10 KB | Platform: Matlab, Scripts
Released Date: 22-02-2013 | Rating: 0 | Title: Discrete Fourier Transform Low/High Pass Filter
Author Url: http://www.mathworks.com
Program Info Url: http://www.mathworks.com
Download Url: http://www.mathworks.com/matlabcentral/fx_files/31076/1/FFTPF1D.zip
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