Presentation 1998/12/10
Design of Digital Signal Processing FPGA Architecture Using New Redundant Number Representation
Yoshiki SAWADA, Takafumi AOKI, Tatsuo HIGUCHI,
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Abstract(in English) This paper presents "Signed-Weight Number System (SW Number System)", which is useful for designing high-speed multiply-add modules for digital signal processing applications. The SW number system makes possible the unified representation of positive and negative numbers by adjusting the signs of individual digit positions. Compared with the conventional two's complement representation, the SW nymber representation, the SW number representation makes possible the constuction of highly regular arithmetic circuits without introducing irregular arithmetic operations, such as sign extension and LSB compensation. This paper also presents the design of a Field Programmable Digital Filter (FPDF) IC-a special-purpose FPGA for high-speed FIR filtering-based on the proposed SW arithmetic. The result of the experimental fabrication of test circuits is also described.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) FPGA / Computer arithmetic / Digital Filter / Multiply-add operations / VLSI
Paper # VLD98-107,CPSY98-127
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Committee VLD
Conference Date 1998/12/10(1days)
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Registration To VLSI Design Technologies (VLD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Design of Digital Signal Processing FPGA Architecture Using New Redundant Number Representation
Sub Title (in English)
Keyword(1) FPGA
Keyword(2) Computer arithmetic
Keyword(3) Digital Filter
Keyword(4) Multiply-add operations
Keyword(5) VLSI
1st Author's Name Yoshiki SAWADA
1st Author's Affiliation Graduate School of Information Sciences, Tohoku University()
2nd Author's Name Takafumi AOKI
2nd Author's Affiliation Graduate School of Information Sciences, Tohoku University
3rd Author's Name Tatsuo HIGUCHI
3rd Author's Affiliation Graduate School of Information Sciences, Tohoku University
Date 1998/12/10
Paper # VLD98-107,CPSY98-127
Volume (vol) vol.98
Number (no) 446
Page pp.pp.-
#Pages 8
Date of Issue