Adaptive CORDIC: Using Parallel Angle Recoding to Accelerate CORDIC Rotations

Implementation of High Speed Fixed Point CORDIC Techniques

“…By implementing AR algorithm in hardware, it can be used to find any desired rotation angle. This is done by replacing the serial testing of the angle constants in the original algorithm by a parallel test to be carried out in hardware in case of Adaptive CORDIC [5]. It was done by completely eliminate…”

“…The maximum number of iterations required by this method is N/2, with an average value of approximately N/3 iterations. The associated CORDIC method that makes use of the Angle Recoding method is termed as Adaptive CORDIC [5]. The CORDIC algorithm can be applied in two different modes (e.g., rotation mode and vectoring mode) and three types (e.g., linear, circular and hyperbolic mode) [6].…”

“…A comparison is made for 16-bit and 24-bit with the reference paper [5]. To attain a generic design, VHDL hardware description language was used to synthesize the entire CORDIC units as it presents a tremendous productivity improvement for circuit designers and descriptions of large circuits can be written in a relatively compact and concise form.…”

Implementation of Cordic Algorithm for FPGA Based Computers Using Verilog

“…The major problem of CORDIC algorithm is long latency. To reduce this problem [2], angle correction method and Quadrant correction of CORDIC have been adopted presented in this paper.…”

“…The CORDIC algorithm has become a widely used approach to elementary function evaluation when the silicon area is a primary constraint. The implementation of CORDIC algorithm requires less complex hardware than the conventional method [2]. The CORDIC algorithm has found its way in various applications such as pocket calculators, numerical co-processors, to high performance radar signal processing, supersonic bomber aircraft with a digital counterpart, computation of the (Fast Fourier Transform) FFT, and at the effects on the numerical accuracy [3].…”