Complex arithmetic through CORDIC

A complex arithmetic digital signal processor using CORDIC rotators

CORDIC Processor for Variable-Precision Interval Arithmetic

In this paper we present a specific CORDIC processor for variable-precision coordinates. This system allows us to specify the precision to perform the CORDIC operation, and control the accuracy of the result, in such a way that re-computation of inaccurate results can be carried out with higher precision. It permits a reliable and accurate evaluation of a wide range of elementary functions. The...

A Beamformer ASIC using Cordic Arithmetic 609

| 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...

Complex Logarithmic Number System Arithmetic Using High-Radix Redundant CORDIC Algorithms

This paper describes the application of high radix redundant CORDIC algorithms to complex logarithmic number system arithmetic. It shows that a CLNS addition can be performed with approximately the same hardware as a high-radix CORDIC operation. A design example comparable to single precision floating point has been designed and simulated.

CORDIC-based Architecture for Powering Computation in Fixed-Point Arithmetic

We present a fixed point architecture (source VHDL code is provided) for powering computation. The fully customized architecture, based on the expanded hyperbolic CORDIC algorithm, allows for design space exploration to establish tradeoffs among design parameters (numerical format, number of iterations), execution time, resource usage and accuracy. We also generate Pareto-optimal realizations i...