BibTeX:

@article{IJIRSTV1I3031,
     title={Implementation of Optimized CORDIC Designs},
     author={Bibinu Jacob and Reneesh Zacharia},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={1},
     number={3},
     pages={70--80},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV1I3031.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

CORDIC stands for COordinate Rotation DIgital Computer, which is likewise known as Volder's algorithm and digit-by-digit method. It is a simple and effective method to calculate many functions like trigonometric, hyperbolic, logarithmic etc. It performs complex multiplications using simple shifts and additions. It finds applications in robotics, digital signal processing, graphics, games, and animation. But, there isn't any optimized CORDIC designs for rotating vectors through specific angles. In this paper, optimization schemes and CORDIC circuits for fixed and known rotations are proposed. Finally an argument reduction technique to map larger angle to an angle less than 45 is discussed. The proposed CORDIC cells are simulated by Xilinx ISE Design Suite and shown that the proposed designs offer less latency and better device utilization than the reference CORDIC design for fixed and known angles of rotation.

Coordinate rotation digital computer (CORDIC), digital signal processing (DSP) chip, very large scale integration (VLSI)