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Multiplier-less Farrow Structure based Linear Phase Low Pass Interpolation Filter

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International Journal of Computer Applications
© 2014 by IJCA Journal
Volume 95 - Number 14
Year of Publication: 2014
Authors:
Nisha Haridas
Aravind Illa
Elizabeth Elias
10.5120/16659-6645

Nisha Haridas, Aravind Illa and Elizabeth Elias. Article: Multiplier-less Farrow Structure based Linear Phase Low Pass Interpolation Filter. International Journal of Computer Applications 95(14):1-6, June 2014. Full text available. BibTeX

@article{key:article,
	author = {Nisha Haridas and Aravind Illa and Elizabeth Elias},
	title = {Article: Multiplier-less Farrow Structure based Linear Phase Low Pass Interpolation Filter},
	journal = {International Journal of Computer Applications},
	year = {2014},
	volume = {95},
	number = {14},
	pages = {1-6},
	month = {June},
	note = {Full text available}
}

Abstract

This paper proposes a totally multiplier-less farrow structure based linear phase low-pass interpolation filter. When implemented using farrow structure, it has inherently low number of multipliers and adders compared to that using finite impulse response (FIR) filter structure. To further reduce the implementation complexity, the structure is made totally multiplier-less. Canonic signed digit (CSD) representation of the filter coefficients is made use of in this paper. A meta-heuristic optimization algorithm is deployed to obtain optimal CSD representation. Reduction in the implementation complexity leads to lower power consumption, chip area and cost.

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