Comb Filter

Version 1.0.0.0 (1.48 KB) by Jeff Tackett
Returns IIR coefficients for a Nth order Comb Filter
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Updated 23 Feb 2012

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Usage: [B,A] = COMB(order, scalar);

ORDER is the number of samples delayed prior to add
SCALAR is the coefficient that will be applied to
the delayed signal path at the final summation block.

Note, there are two types of comb filters. A DC-blocker and a DC-passer.
To get a DC-Blocker (tooth at DC), pass in a -1 for the scalar.
To get a DC-Passer (+6dB at DC), pass in a +1 for the scalar.

By default, if the scalar is not passed, a DC-Passer is assumed.

Cite As

Jeff Tackett (2024). Comb Filter (https://www.mathworks.com/matlabcentral/fileexchange/35228-comb-filter), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2011a
Compatible with any release
Platform Compatibility
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Version Published Release Notes
1.0.0.0