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A novel FIR filter architecture for efficient signal boundary handling on Xilinx VIRTEX FPGAs

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3 Author(s)
Benkrid, A. ; Sch. of Comput. Sci., Queen''s Univ., Belfast, UK ; Benkrid, K. ; Crookes, D.

FIR (Finite Impulse Response) filters are often used in digital signal processing. This paper presents architecture for FIR filters on Xilinx Virtex FPGAs (field programmable gate arrays). The architecture is particularly useful for handling the problem of signal boundaries filtering, which occurs in finite length signal processing (e.g. image processing). Based on a bit parallel arithmetic, our architecture is fully scalable and parameterized. It cleverly exploits the Shift Register Logic (SRL16) component of the Virtex family. The implementation leads to considerable area savings compared to the conventional implementation (based on a hard router) with no speed penalty. A case study based on the implementation of the standard low filter of the Daubechies-8 wavelet on Xilinx Virtex-E FPGAs is presented.

Published in:

Field-Programmable Custom Computing Machines, 2003. FCCM 2003. 11th Annual IEEE Symposium on

Date of Conference:

9-11 April 2003

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