Search
Code Directory
 ASP
 ASP.NET
 C/C++
 CFML
 CGI/PERL
 Delphi
 Development
 Flash
 HTML
 Java
 JavaScript
 Pascal
 PHP
 Python
 SQL
 Tools
 Visual Basic & VB.NET
 XML
New Code
Softros LAN messenger 9.2
GetOrgChart 2.5.2
Alvas.Audio 2018.0
Bytescout PDF Viewer SDK 9.0.0.3079
SecureBridge 8.2
Magento Language Translator 1.0
Australia Post Shipping For Magento 1.0
Excel Add-in for SQL Server 1.7
ODBC Driver for BigCommerce 1.3
Excel Add-in for SQLite 1.7
SentiVeillance SDK Trial 6.0.183849
dotConnect for Dynamics CRM 1.7
Entity Developer 6.3
dbForge Documenter for Oracle 1.0
dbForge Data Generator for Oracle 2.0
Top Code
JustAjax Table 0.7
Vermilion 0.3.1
Splasher
VG CL Library 5.1
WP exec PHP 1.0
decision based median filter 1.0
weighted median filter 1.0
Top Rated
Output Messenger 1.8.0
Aliexpress Clone- Ec21 Script 1
Indiegogo Clone 3.0
Advanced MLM Software 1.2
Online Food Ordeing System 1.0
PHP Image Resize Script 1.0
Best Spotify Clone 1.0
Get Random Record Based on Weight 1.0.0
PHP Point of sale 10.0
Travel Portal Script 9.29
Excel Add-in for Bigcommerce 1.6
Magento Product Designer 1.0
OFOS - Just Eat Clone Script 1.0
PrestaShop Upload Images Module 1.2.1
Trading Software 1.2.4
Discrete Fourier Transform Low/High Pass Filter 1.0
File ID: 78237






Discrete Fourier Transform Low/High Pass Filter 1.0
Download Discrete Fourier Transform Low/High Pass Filter 1.0http://www.mathworks.comReport Error Link
License: Freeware
File Size: 10.0 KB
Downloads: 210
Submit Rating:
Discrete Fourier Transform Low/High Pass Filter 1.0 Description
Description: 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.

License: Freeware

Related: rslanguage, a3d121000, dsina, translated, Version, Lower, Easily, modified, Sin, distribute, Training, academic, propose, invokeygmailcom, zhang, dfftpf, Author

O/S:BSD, Linux, Solaris, Mac OS X

File Size: 10.0 KB

Downloads: 210



More Similar Code

This demonstration is intended for people who know something about the theory of the discrete Fourier transform, and who would find it helpful to see some its properties demonstrated graphically, using a programming language.

The demonstration shows the form of the Fourier components of a signal in 1-D and in 2-D, and shows how elementary filtering can be applied in the Fourier domain.



MATLAB code for beginners that performs Homomorphic filtering, Using Butterworth High Pass Filter for performing filtering.

Copy the files in your work space
Type "ho_filter" to see the results



EDFT (Extended Discrete Fourier Transform) algorithm produces N-point DFT of sequence X where N is greater than the length of input data. Unlike the Fast Fourier Transform (FFT), where unknown readings outside of X are zero-padded, the EDFT...



Compute the discrete Fourier transform at specified frequencies, not using fft.
Why one may need this?

(1) MATLAB fft function computes the amplitude of signals only (no phase).
(2) Once having the recorded time-series data,...



Simple Zero Phase Distortion Multiplier-less Gaussian Low-Pass & High-Pass Digital Filter of a Linear Chirp.



six different DCT (Discrete Cosine Transform based image fusion techniques are presented
Image fusion using DCT based demo programme is presented.



The Fourier transform takes a signal in the time domain and maps it, without loss of information, into the frequency domain. The frequency domain representation is exactly the same signal, in a different form. The inverse Fourier transform(IDFT)...



Derives the transfer function for digital implementation of a first order RC low pass filter and plots the step and frequency response.
For details, refer to the post:
http://www.dsplog.com/2007/12/02/digital-i...ow-pass-filter/



computes the sequency-ordered discrete Hadamard transform


User Review for Discrete Fourier Transform Low/High Pass Filter
- required fields
     

Please enter text on the image