50 Years of CORDIC: Algorithms, Architectures, and Applications

By Pramod Kumar Meher, J. Valls-Coquillat, Tso-Bing Juang, K. Sridharan, K. Maharatna. IEEE Transactions on Circuits and Systems Part 1: Regular Papers, 2009

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Year 2009 marks the completion of 50 years of the invention of CORDIC (coordinate rotation digital computer) by Jack E. Volder. The beauty of CORDIC lies in the fact that by simple shift-add operations, it can perform several computing tasks such as the calculation of trigonometric, hyperbolic and logarithmic functions, real and complex multiplications, division, square-root, solution of linear systems, eigenvalue estimation, singular value decomposition, QR factorization and many others. As a consequence, CORDIC has been utilized for applications in diverse areas such as signal and image processing, communication systems, robotics and 3-D graphics apart from general scientific and technical computation. In this article, we present a brief overview of the key developments in the CORDIC algorithms and architectures along with their potential and upcoming applications.

Subfields: Applied Mathematics, Computational Theory and Mathematics, Signal Processing

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