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High-performance position evaluation of optical encoders via a CORDIC algorithm and oversampling techniques on an FPGA

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5 Author(s)
Groling, C. ; Inst. fur Regelungstech., Tech. Univ. Braunschweig, Braunschweig, Germany ; Daaboul, Y. ; Lux, M. ; Orlik, T.
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This paper illustrates a novel approach to obtain an improved position signal from optical encoders. The approach is based on an FPGA implementation of a CORDIC algorithm used for demodulation of the track signals. Due to fast demodulation, oversampling techniques can be used to considerably improve the position signal.

Published in:

Power Electronics and Applications, 2009. EPE '09. 13th European Conference on

Date of Conference:

8-10 Sept. 2009