한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제34권3호
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  • Pages.191-197
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  • 2017
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
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지형 기울기에 의한 항공 수심 라이다 수심 측정 오차 보정

Correction in the Measurement Error of Water Depth Caused by the Effect of Seafloor Slope on Peak Timing of Airborne LiDAR Waveforms

  • 심기현 (과학기술연합대학원대학교 측정과학과) ;
  • 우제흔 (한국표준과학연구원 길이센터) ;
  • 이재용 (한국표준과학연구원 길이센터) ;
  • 김재완 (한국표준과학연구원 길이센터)
  • Sim, Ki Hyeon (Science of Measurement, University of Science and Technology) ;
  • Woo, Jae Heun (Center for Length, Korea Research Institute of Standards and Science) ;
  • Lee, Jae Yong (Center for Length, Korea Research Institute of Standards and Science) ;
  • Kim, Jae Wan (Center for Length, Korea Research Institute of Standards and Science)
  • 투고 : 2016.04.12
  • Accepted : 2016.12.13
  • Published : 2017.03.01
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Abstract

Light detection and ranging (LiDAR) is one of the most efficient technologies to obtain the topographic and bathymetric map of coastal zones, superior to other technologies, such as sound navigation and ranging (SONAR) and synthetic aperture radar (SAR). However, the measurement results using LiDAR are vulnerable to environmental factors. To achieve a correspondence between the acquired LiDAR data and reality, error sources must be considered, such as the water surface slope, water turbidity, and seafloor slope. Based on the knowledge of those factors' effects, error corrections can be applied. We concentrated on the effect of the seafloor slope on LiDAR waveforms while restricting other error sources. A simulation regarding in-water beam scattering was conducted, followed by an investigation of the correlation between the seafloor slope and peak timing of return waveforms. As a result, an equation was derived to correct the depth error caused by the seafloor slope.

Keywords

References

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