Title :
Architecture for CORDIC algorithm realization without ROM lookup tables
Author :
Chen, Chuen-Yau ; Liu, Wen-Chih
Author_Institution :
Dept. of Electron. Eng., I-Shou Univ., Kaohsiung, Taiwan
Abstract :
This paper proposes an architecture for implementing the CORDIC algorithm. By decomposing an arbitrary rotation angle into a sequence of coarse angles (the tangent value of each of which is a power of 2) and a fine angle which is small enough, this architecture can be implemented by performing a sequence of shift-and-add operations in the radix-2 system without any ROM lookup table or real multiplication requirement. It is suitable to be designed in a pipelined architecture for performing high-speed operations.
Keywords :
parallel architectures; pipeline arithmetic; signal processing; CORDIC algorithm architecture; arbitrary rotation angle; coarse angles; fine angle; high-speed operations; pipelined architecture; radix-2 system; shift-and-add operations; Communication system control; Computer architecture; Control systems; Hardware; Power engineering and energy; Read only memory; Table lookup;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1206137
