Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Implementation of High-Resolution Laser Distance Measurement System using Phase-Shift Method

위상천이 방법을 이용한 고분해능 레이저 거리측정 시스템 개발

  • 박병제 (한양대학교 전자통신전파공학과) ;
  • 이충우 (한양대학교 전자통신전파공학과) ;
  • 정정주 (한양대학교 전자전기컴퓨터공학부) ;
  • 소재혁 ((주)EO Technics 기술연구소 H/W 연구그룹) ;
  • 웅상진 ((주)EO Technics 기술연구소 H/W 연구그룹)
  • Published : 2004.11.12
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Abstract

In this paper, we developed a laser distance measurement(LDM) system based on DSP. We applied PPD(Pulsed Phase Detection) algorithm to the LDM system. The PPD algorithm calculate the distance from the LDM system to the object by using phase detection. Reference waveform at a fixed frequency is sampled by both the inner-loop and outer-loop pulse signal. The LDM system detects the difference of phase between the sampled signals. We obtained an accuracy of ${\sigma}=25.5mm$ from the LDM system.

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