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Proceedings Paper

A multiple phase demodulation method for high resolution of the laser range finder
Author(s): Heesun Yoon; Jinpyo Hong; Seonggu Kang; Kyihwan Park
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Paper Abstract

To have higher resolution of distance in the laser range finder using the phase demodulation method, signal should be modulated with a high frequency. In the signal processing of modulation and demodulation, it is inevitable to amplify the signals. However, it is not easy to amplify the high frequency since the amplifying gain is restricted by the frequency bandwidth. It is advantageous to demodulate using an intermediate frequency in which high gain amplification as well as less contaminated signal are obtained. Analytical and experimental results are presented to show how the intermediate frequency demodulation method works and how good performance are obtained in the time and frequency domains.

Paper Details

Date Published: 17 November 2008
PDF: 8 pages
Proc. SPIE 7266, Optomechatronic Technologies 2008, 72660N (17 November 2008); doi: 10.1117/12.808017
Show Author Affiliations
Heesun Yoon, Gwangju Institute of Science and Technology (Korea, Republic of)
Jinpyo Hong, Gwangju Institute of Science and Technology (Korea, Republic of)
Seonggu Kang, Gwangju Institute of Science and Technology (Korea, Republic of)
Kyihwan Park, Gwangju Institute of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 7266:
Optomechatronic Technologies 2008

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