A Method to Derate the Rate-Dependency in the Pass-Band Droop of Comb Decimators
Signal Processing
2026-03-06 v1
Abstract
This paper presents a method to derate the dependency on the decimation factor, , of the pass-band droop inherent to -th ordered comb decimators. It is achieved by cascading a symmetric 3-tap FIR filter in the integral stage of the corresponding comb decimator and choosing the coefficients only as a function of order . The proposed derating method derived from the conventional comb decimator can be readily applied to any recently developed comb decimator and droop-compensation filter design method.
Cite
@article{arxiv.2603.04906,
title = {A Method to Derate the Rate-Dependency in the Pass-Band Droop of Comb Decimators},
author = {Ealwan Lee},
journal= {arXiv preprint arXiv:2603.04906},
year = {2026}
}