1D Gaussian lowpass filter
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This function returns coefficients of Gaussian lowpass filter.
Advantages of Gaussian filter: no ringing or overshoot in time domain.
Diasadvantage: slow rolloff in frequency domain.
Pass SR=sampling rate, fco=cutoff freq, both in Hz, to the function.
Coefficients for FIR filter of length L (L always odd) are computed.
This symmetric FIR filter of length L=2N+1 has delay N/SR seconds.
Examples of use:
Compute Gaussian filter frequency response when SR=1000,fco=50 Hz:
freqz(gaussfiltcoef(1000,50),1,256,1000);
Filter signal X sampled at 5kHz with Gaussian filter with fco=500:
y=filter(gaussfiltcoef(5000,500),1,X);
SR,fco are not sanity-checked. WCR 2006-10-11.
Free download from Shareware Connection - This function returns coefficients of Gaussian lowpass filter.
Version: 1.0 | Size: 10 KB | Platform: Matlab, Scripts
Released Date: 26-01-2013 | Rating: 0 | Title: 1D Gaussian lowpass filter
Author Url: http://www.mathworks.com
Program Info Url: http://www.mathworks.com
Download Url: http://www.mathworks.com/matlabcentral/fx_files/12606/1/gaussfiltcoef.m
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