CORDIC Processor for Variable-Precision Interval Arithmetic

Interval Sine and Cosine Functions Computation Based on Variable-Precision CORDIC Algorithm

In this paper we design a CORDIC architecture for variable–precision, and a new algorithm is proposed to perform the interval sine and cosine functions. This system allows us to specify the precision to perform the sine and cosine functions, and control the accuracy of the result, in such a way that recomputation of inaccurate results can be carried out with higher precision. An important reduc...

FPGA Implementation of a Variable Precision CORDIC Processor

In this paper we present the FPGA implementation of a new word{serial CORDIC processor working with variable precision. It has been designed in such a way that it allows us to take advantage of the successive shifts in the coordinates involved in the CORDIC algorithm. This signiicatively reduces the total number of cycles required. Special attention has been paid to the design of the critical p...

A software interface and hardware design for variable-precision interval arithmetic

This paper presents a software interface and hardware design for variable-precision, interval arithmetic. The software interface gives the programmer the ability to spedfy the predsion of the computation and determine the accuracy of the result Special instructions for vector and matrix operations are also provided. The hardware design directly supports variable-precision, interval arithmetic. ...

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.

A complex arithmetic digital signal processor using CORDIC rotators