DocumentCode
977706
Title
Multilevel barrel shifter for CORDIC design
Author
Yih, S.-J. ; Cheng, M. ; Feng, W.-S.
Author_Institution
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Volume
32
Issue
13
fYear
1996
fDate
6/20/1996 12:00:00 AM
Firstpage
1178
Lastpage
1179
Abstract
The coordinate rotation digital computer (CORDIC) algorithm is used in numerous special purpose systems for real-time signal processing applications. It uses barrel shifters to complete shift operations. However, the barrel shifter occupies most of the area of the CORDIC chip. A new structure of multilevel barrel shifters is presented. With this structure the shifter size is reduced by 68%. The novel structure can also slightly reduce the latency time of shift operations
Keywords
digital arithmetic; digital signal processing chips; iterative methods; real-time systems; CORDIC chip; CORDIC design; DSP chip; coordinate rotation digital computer algorithm; latency time reduction; multilevel barrel shifter; real-time signal processing applications; shift operations;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19960780
Filename
502987
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