Multiplier-Free Divide, Square Root, and Log Algorithms [DSP Tips and Tricks]

摘要

Many signal processing algorithms require the computation of the ratio of two numbers, the square root of a number, or a logarithm. These operations are difficult when using fixedpoint hardware that lack dedicated multipliers, such as low-cost microcontrollers, application specific integrated circuits (ASICs), and field programmable gate arrays (FPGAs).