image thumbnail

Sinc filter

version 1.1.0.0 (150 KB) by Christopher Hummersone
Apply a near-ideal low- or band-pass filter.

2.7K Downloads

Updated 05 May 2018

From GitHub

View license on GitHub

NOTE: this function is now available from the IoSR Matlab Toolbox as iosr.dsp.sincFilter.
-------------------------
y = sinc_filter(x,Wn)
y = sinc_filter(x,Wn,N)
y = sinc_filter(x,Wn,N,dim)
y = sinc_filter(x,Wn,[],dim)
y = sinc_filter(x,Wn) applies a near-ideal low-pass or band-pass brickwall filter to the array x, operating along the first non-singleton dimension (e.g. down the columns of a matrix). The cutoff frequency/frequencies are specified in Wn. If Wn is a scalar, then Wn specifies the low-pass cutoff frequency. If Wn is a two-element vector, then Wn specifies the band-pass interval. Wn must be 0.0 < Wn < 1.0, with 1.0 corresponding to half the sample rate.

The filtering is performed by FFT-based convolution of x with the sinc kernel.

y = sinc_filter(x,Wn,N) allows the filter length to be specified. The default value is N=1025. The filter length is doubled in the band-pass case. In either case, if N is even the final filter length will be N+1.

y = sinc_filter(x,Wn,N,dim) applies the specified filter along the dimension dim.

y = sinc_filter(x,Wn,[],dim) applies the specified filter along the dimension dim using the default filter length.

Cite As

Christopher Hummersone (2022). Sinc filter (https://github.com/IoSR-Surrey/MatlabToolbox), GitHub. Retrieved .

MATLAB Release Compatibility
Created with R2012b
Compatible with any release
Platform Compatibility
Windows macOS Linux
Tags Add Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!
To view or report issues in this GitHub add-on, visit the GitHub Repository.
To view or report issues in this GitHub add-on, visit the GitHub Repository.