10 Abstract— Most of the hardware algorithms exist to handle the hardware intensive signal processing problems. Among these algorithms is a set of shift-add algorithms collectively known as CORDIC for computing a wide range of functions including certain trigonometric, hyperbolic and logarithmic functions. Apart from this it can handle linear functions. Even though numerous articles covering va...

Volume 2, Issue 2 March – April 2013 Page 306 Abstract—Now-a-days various Digital Signal Processing systems are implemented on a platform of programmable signal processors or on application specific VLSI chips. Coordinate Rotation Digital Computer (CORDIC) algorithm has turned out to be such kind of programmable signal processor. In recent times, it has been a widely researched topic in the fie...

| An IC implementation for a demonstrator of adaptive beamforming in radio astronomy is presented here. The chip implements the MVDR (Minimum Variance Distortion-less Response) beamforming algorithm using Cordic arithmetic. It is designed in Mentor Graphics's DSP design environment (DSP station). In the beam-forming demonstrator, signals from 16 antennas are digitized at a sampling frequency of...

In this Paper, the architecture and FPGA implementation of a Coordinate Rotation Digital Computer (CORDIC) pipeline Fast Fourier Transform (FFT) processor is presented. Fast Fourier Transforms (FFT) is highly efficient algorithm which uses Divide and Conquer approach for speedy calculation of Discrete Fourier transform (DFT) to obtain the frequency spectrum. CORDIC algorithm which is hardware e...

This paper presents a novel CORDIC algorithm and architecture for the rotation and vectoring mode in circular coordinate systems in which the directions of all micro-rotations are precomputed while maintaining a constant scale factor. Thus, an examination of the sign of the angle or y-remainder after each iteration is no longer required. By using Most-Signiicant Digit (MSD) rst adder/multiplier...

A modern coordinate rotation digital computer (CORDIC)-based fast radix-2 algorithm for computation of discrete cosine transformation DCT). The planned algorithm has some distinguish advantages, such as Cooley-Tukey fast Fourier transformation (FFT)-like regular data flow, uniform post-scaling factor, in-place computation and arithmetic sequence rotation angles. Compared to existing DCT algorit...

The novel annihilation-reordering look-ahead technique is proposed as an attractive technique for pipelining of Givens rotation (or CORDIC) based adaptive lters. Unlike the existing relaxed look-ahead, the annihilation-reordering look-ahead does not depend on the statistical properties of the input samples. It is an exact look-ahead and based on CORDIC arithmetic, which is known to be numerical...

The Coordinate Rotational Digital Computer (CORDIC) algorithm is another classic approach for sine wave generation. This trigonometric iteration based approach relies on vector rotations for performing successive mapping between polar and rectangular co-ordinates (and vice versa)

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise, to republish, to post on servers or to redistribute to lists, requires prior specific permission....