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
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;
Conference_Titel :
Circuits and Systems, 1999. 42nd Midwest Symposium on
Conference_Location :
Las Cruces, NM
Print_ISBN :
0-7803-5491-5
DOI :
10.1109/MWSCAS.1999.867773
