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
fDate :
6/20/1996 12:00:00 AM
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;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960780
