Scilab Website | Contribute with GitLab | Mailing list archives | ATOMS toolboxes
Scilab Online Help
5.4.1 - Русский

Change language to:
English - Français - 日本語 - Português -

Please note that the recommended version of Scilab is 2024.0.0. This page might be outdated.
See the recommended documentation of this function

Scilab help >> Signal Processing > filters > wfir

wfir

linear-phase FIR filters

Calling Sequence

[wft,wfm,fr]=wfir(ftype,forder,cfreq,wtype,fpar)

Arguments

ftype

string : 'lp','hp','bp','sb' (filter type)

forder

Filter order (pos integer)(odd for ftype='hp' or 'sb')

cfreq

2-vector of cutoff frequencies (0<cfreq(1),cfreq(2)<.5) only cfreq(1) is used when ftype='lp' or 'hp'

wtype

Window type ('re','tr','hm','hn','kr','ch')

fpar

2-vector of window parameters. Kaiser window fpar(1)>0 fpar(2)=0. Chebyshev window fpar(1)>0, fpar(2)<0 or fpar(1)<0, 0<fpar(2)<.5

wft

time domain filter coefficients

wfm

frequency domain filter response on the grid fr

fr

Frequency grid

Description

Function which makes linear-phase, FIR low-pass, band-pass, high-pass, and stop-band filters using the windowing technique. Works interactively if called with no arguments.

Examples

[h,hm,fr]=wfir("lp",33,[.2 0],"hm",[0 0])
Report an issue
<< trans filters wiener >>

Copyright (c) 2022-2023 (Dassault Systèmes)
Copyright (c) 2017-2022 (ESI Group)
Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors
Last updated:
Tue Apr 02 17:37:55 CEST 2013