Implementation of Original CORDIC, Control CORDIC and Angle Recoding CORDIC of 16-bit, 24-bit and 32-bit fixed point number have been done in this paper. VHDL is used to modelled these architectures. Original CORDIC, Control CORDIC and Angle Recoding CORDIC are synthesized and targeted for Xilinx Virtex 5 FPGA and the results calculated for 16-bit and 24-bit has shown satisfactory improvement i...

This paper is associated with implementation of Sine & Cosine using Volder’s CORDIC Algorithm. CORDIC algorithm based Systems are used for fast and silicon area efficient computation of the sine and cosine functions. The algorithmic approach for the CORDIC algorithm implementation is presented here. Summary of CORDIC synthesis results based on Actel and XILINX FPGAs is given. Finally applicatio...

The CORDIC algorithm is a well-known iterative method for the computation of vector rotation. However, the major disadvantage is its relatively slow computational speed. For applications that require forward rotation (or vector rotation) only, we propose a new scheme, the modified vector rotational CORDIC (MVR-CORDIC) algorithm, to improve the speed performance of CORDIC algorithm. The basic id...

A novel n-dimensional (n-D) CORDIC algorithm. for Euclidean and pseudo-ELclidian rotations,% proposed. The new algorithm is closely related to Householder transformations. It is shown to converge faster than CORDIC algorithms developed earlier for n = 3 and 4. Processor architectures for the algorithm are presented. The area and time performance of n-D CORDIC processors are evaluated. For a com...

We propose a backward angle recoding (BAR) method to eliminate redundant CORDIC elementary rotations and hence expedite the CORDIC rotation computation. We prove that for each of the linear, circular, and hyperbolic CORDIC rotations, the use of BAR guarantees more than 50% reduction of elementary CORDIC rotations provided the scaling factor needs not be kept constant. The proposed BAR algorithm...

The authors propose a coordinate rotation digital computer (CORDIC) rotator algorithm that eliminates the problems of scale factor compensation and limited range of convergence associated with the classical CORDIC algorithm. In the proposed scheme, depending on the target angle or the initial coordinate of the vector, a scaling by 1 or 1= p 2 is needed that can be realised with minimal hardware...

The authors propose a coordinate rotation digital computer (CORDIC) rotator algorithm that eliminates the problems of scale factor compensation and limited range of convergence associated with the classical CORDIC algorithm. In the proposed scheme, depending on the target angle or the initial coordinate of the vector, a scaling by 1 or 1= p 2 is needed that can be realised with minimal hardware...

This paper presents a method to improve implementation accuracy of a recently proposed CORDIC ARMA lattice filter. Since the CORDIC ARMA lattice filter algorithm has a problem in its shift sequence, i t cannot implement a lattice filter accurately. Therefore, in this paper we apply the shift sequence proposed by Walther without the problem to the CORDIC ARMA lattice filter, and then we realize ...

The proposed architecture carried out makes use of n iterations to produce the final value of the function upto an accuracy of n bits. A two’s complement 4bit carry-look ahead adder/subtractor block with carry-save has been implemented as part of the architecture for greater speed. An 8-bit barrel shifter has been implemented for use in the algorithm. An optimum use of edge-triggered latches an...

-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 ...