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Issue No.02 - February (1993 vol.42)
pp: 168-178
<p>After a brief survey of the CORDIC algorithm, some new results that allow fast and easy signed-digit implementation of CORDIC, without modifying the basic iteration step are given. A slight modification would make it possible to use a carry-save representation of numbers, instead of a signed-digit one. The method, called the branching CORDIC method, consists of performing in parallel two classic CORDIC rotations. It gives a constant normalization factor. An online implementation of the algorithm is proposed with an online delay equal to 5 for the sine and cosine functions.</p>
sign functions; CORDIC algorithm; fast VLSI implementation; signed-digit implementation; carry-save representation; branching CORDIC method; constant normalization factor; online delay; cosine functions; digital arithmetic; signal processing; VLSI.
J. Duprat, J.-M. Muller, "The CORDIC Algorithm: New Results for Fast VLSI Implementation", IEEE Transactions on Computers, vol.42, no. 2, pp. 168-178, February 1993, doi:10.1109/12.204786
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