Rounding Based Approximate Multiplier For High Speed Yet Energy Efficient Dsp Applications

Abstract

A rounding-based approximation multiplier(ROBA) that accurately multiplies two integer integers by shifting them is proposed in this study. The primary goal of this study was to round the number using values from the sign detector. Three hardware functions can be used to implement this work: one for signed multiplication of two integer values, another forum signed multiplication of two integer values, and a third for sign sets that indicate exact multiplier, accurate multiplier, and approximate multiplier values based on operands of values a=b, a>b, and a barrel shifter that multiplies the values in accordance with the shifting formula at obtain the approximate value with less delay than various conventional multipliers. Applications for this approximate multiplier with a rounding basis include digital signal processing, image processing, and sharpening of images. Using the ROBA multiplier requires.