@inproceedings{ea0674d2357f49b0bbb3022234156da4,
title = "Application of CORDIC in capacitive rotary encoder signal demodulation",
abstract = "Capacitive rotary encoders are widely used in motor velocity and angular position control, where high-speed and high-precision angle calculation is required. This paper illustrates implementation of arctangent operation, based on the CORDIC (an acronym for COordinate Rotational DIgital Computer) algorithm, in the capacitive rotary encoder signal demodulation in an FPGA to obtain the motor velocity and position. By skipping some unnecessary rotation in CORDIC algorithm, we improve the algorithm's computing accuracy. Experiments show that the residue angle error is almost reduced by half after the CORDIC algorithm is optimized, and is completely meet the precision requirements of the system.",
keywords = "CORDIC, arctangent, capacitive, rotary encoders",
author = "Dezhi Zheng and Shaobo Zhang and Yuming Zhang and Chen Fan",
year = "2012",
doi = "10.1109/ISICT.2012.6291638",
language = "English",
isbn = "9781467326162",
series = "2012 the 8th IEEE International Symposium on Instrumentation and Control Technology, ISICT 2012 - Proceedings",
pages = "61--65",
booktitle = "2012 the 8th IEEE International Symposium on Instrumentation and Control Technology, ISICT 2012 - Proceedings",
note = "8th IEEE International Symposium on Instrumentation and Control Technology, ISICT 2012 ; Conference date: 11-07-2012 Through 13-07-2012",
}