DocumentCode
356250
Title
A new scheme for prediction of rotation directions in CORDIC processing
Author
Kwak, Jae-Hyuck ; Swartzlander, Earl E.
Author_Institution
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Volume
2
fYear
1999
fDate
1999
Firstpage
870
Abstract
This paper presents a new prediction scheme for rotation directions in CORDIC processing. The method is based on approximation of the binary angle input to a number with the arctangent weights (tan-1 2-1). The implementation is designed to keep the fast timing characteristics of redundant arithmetic in the x/y path of the CORDIC processing. Consequently, the proposed σ-prediction not only achieves lower latency time and less hardware complexity than previous approaches, but facilitates pipelined operation with high throughput
Keywords
pipeline arithmetic; redundancy; timing; CORDIC processing; arctangent weights; binary angle input; hardware complexity; latency time; pipelined operation; redundant arithmetic; rotation directions; throughput; timing characteristics; Added delay; Arithmetic; Degradation; Equations; Hardware; Logic; Pipeline processing; Prediction algorithms; Throughput; Timing;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 1999. 42nd Midwest Symposium on
Conference_Location
Las Cruces, NM
Print_ISBN
0-7803-5491-5
Type
conf
DOI
10.1109/MWSCAS.1999.867773
Filename
867773
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