Application of amplitude transformation for compensation of comb decimation filters

The design of compensation filters for comb decimators using amplitude transformation is introduced. It is shown that the transformation of cosine-squared filters provides good compensation characteristics. For a first-degree polynomial, the slope of the transformation line is explicitly set as the...

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Bibliographic Details
Published in:Electronics letters 2013-08, Vol.49 (16), p.985-987
Main Authors: Romero, D.E.T, Dolecek, G. J
Format: Article
Language:English
Subjects:
amplitude transformation
Applied sciences
band‐pass filters
Circuit properties
Circuits and systems
comb decimation filters
comb decimators
comb filters
comb passband droop
compensation
compensation characteristics
compensation filters
cosine‐squared filters
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
first‐degree polynomial
multiplierless coefficient
polynomials
Signal convertors
transformation line
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Summary:The design of compensation filters for comb decimators using amplitude transformation is introduced. It is shown that the transformation of cosine-squared filters provides good compensation characteristics. For a first-degree polynomial, the slope of the transformation line is explicitly set as the unique compensator's multiplierless coefficient. This coefficient changes proportionally with the increase of the comb passband droop. Thus, the proposed approach provides an intuitive and easy way of designing compensation filters.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2013.1492