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Harmonic interference removal using a fractional delay filter

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2 Author(s)
Jovanovic-Dolecek, G. ; INAOE, Puebla, Mexico ; Aguilar-Ponce, M.

Treats the harmonic interference removal where the frequency of the interference is a rational number and known in advance. In order to remove the interference from the corrupted signal without distortion we propose a structure, which uses a comb filter with a fractional delay. The polyphase structure with two output branches approximates a fractional delay. The proposed structure is convenient for the case when the delay is a ratio of high integers.

Published in:

Circuits and Systems, 2000. Proceedings of the 43rd IEEE Midwest Symposium on  (Volume:3 )

Date of Conference:

8-11 Aug. 2000