1D Gaussian lowpass filter 1.0

Date Added: July 06, 2013 | Visits: 582

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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.

Requirements: No special requirements

Platforms: Matlab

Keyword: Computedthis, Delay, Fco, Fco Dfiltergaussfiltcoef Xsrfco, Filter, Filteradvantages, Functioncoefficients, Hzfreqzgaussfiltcoef Filter, L3d2n2b1, Length, Lowpass, Response, Sampled, Sanitychecked, Secondsexamples, Signal, Symmetric, Usecompute

Users rating: 0/10

License: Freeware

Size: 10 KB

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