A Review of CORDIC Algorithms and Architectures with Applications for Efficient Designing

-The coordinate rotation digital computer (CORDIC) algorithm is widely used in various technological fields such as digital signal processing (DSP), biomedical signal processing, robotics, communication systems, image processing etc. Due to ease of simple shift and add operations, the use of CORDIC based systems is increasing drastically. In this paper, some CORDIC based applications have been discussed along with its architectures and algorithms to reduce the number of iterations. To improve the system performance and to reduce the mean absolute percentage error (MAPE), some newly discovered algorithms such as double rotation CORDIC, triple rotation CORDIC, mixed scaling rotation (MSR), scaling free generalized micro-rotation, modified vector rotation (MVR) along with angle recoding (AR) and extended elementary angle set (EEAS) have also been discussed in detail. Use of CORDIC in applications such as in designing of digital filters, FFT computation, singular value decomposition (SVD) has also been reviewed here.