Title :
Residual correction method for fast calculation of arctangent in embedded systems
Author :
Kusaka, Takashi ; Tanaka, Takayuki ; Kajiwara, Hidekazu
Author_Institution :
Grad. Sch. of Inf. Sci. & Technol., Hokkaido Univ., Sapporo, Japan
Abstract :
This study proposes a technique for approximating high-cost calculations at low cost in embedded systems. Fast calculation of arctangent (as given by atan2) was developed by the proposed technique. Relative to the atan2 standard library function, the resulting approximation is 20 times as fast and requires only one-third the memory.
Keywords :
computational geometry; embedded systems; function approximation; mathematics computing; arctangent; atan2 standard library function; embedded systems; high-cost calculations approximation; low cost; residual correction method; Approximation algorithms; Embedded systems; Libraries; Linear approximation; Random access memory; Standards;
Conference_Titel :
Advanced Intelligent Mechatronics (AIM), 2015 IEEE International Conference on
Conference_Location :
Busan
DOI :
10.1109/AIM.2015.7222506
