Radix-2-4-8 CORDIC for fast vector rotation
This paper presents a constant-scale-factor radix-2-4-8 CORDIC algorithm For Fast vector relation and sine/cosine computation. The CORDIC algorithm is a well-known hardware algorithm for computing various elementary functions, Due to its sequential nature of computation, however. significant reduction in processing latency is required for real-time signal processing applications, The proposed radix-2-4-8 CORDIC algorithm dynamically changes the radix of computation during operation, and makes possible the reduction in the number of iterations by 37% for 64-bit precision. This paper also describes the hardware implementation of radix-2-3-8 CORDIC unit that can be installed into practical digital signal processors.
cordic computer arithmetic arithmetic circuits vlsi digital signal processing