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Comments on “Closed Form Variable Fractional Time Delay Using FFT”

Abstract

In this letter drawbacks of the aforementioned paper are pointed out. The proposed approach is improved with minor modifications of the discrete frequency response. This allows for design of fractional delay filters which are close to optimal and can be efficiently implemented in the frequency domain using the sliding DFT based structure. Alternatively, the derived equivalent closed form formulae for offset windows can be used to design filters in the time domain.

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Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
IEEE SIGNAL PROCESSING LETTERS no. 20, edition 8, pages 747 - 750,
ISSN: 1070-9908
Language:
English
Publication year:
2013
Bibliographic description:
Blok M.: Comments on “Closed Form Variable Fractional Time Delay Using FFT”// IEEE SIGNAL PROCESSING LETTERS. -Vol. 20, iss. 8 (2013), s.747-750
DOI:
Digital Object Identifier (open in new tab) 10.1109/lsp.2013.2265394
Verified by:
Gdańsk University of Technology

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