Study on returned signal spatial distribution and detection ability of laser bathymetric system

Song Yang*, Shixiang Cao, Jinghao Zhang, Xuling Lin, Jing Xu, Zhenmin Shen, Qian Sun, Zhiqiang Wu, Weidong Shang, Yongchao Zheng

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Airborne laser bathymetric system has great advantages in shallow sea bathymetric mapping due to its no blind area, high accuracy and high density data. By using Monte Carlo method and radiation-transport equation, the spatial distribution of the signal spot on the sea surface is calculated respectively. The results show that the spatial distribution of the signal spot returned to the sea surface is more extensive with the increase of the depth, and the power attenuation of the center of the spot is more serious. In this paper, signal to noise ratio (SNR) is used as the performance evaluation criterion of laser bathymetry system, and the requirements of field of view for signal detection under different depth are analyzed. The analytic results will provide support for the design and optimization of the laser bathymetric system.

Original languageEnglish
Title of host publicationSeventh Symposium on Novel Photoelectronic Detection Technology and Applications
EditorsJunhong Su, Junhao Chu, Qifeng Yu, Huilin Jiang
PublisherSPIE
ISBN (Electronic)9781510643611
DOIs
Publication statusPublished - 2021
Externally publishedYes
Event7th Symposium on Novel Photoelectronic Detection Technology and Applications - Kunming, China
Duration: 5 Nov 20207 Nov 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11763
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference7th Symposium on Novel Photoelectronic Detection Technology and Applications
Country/TerritoryChina
CityKunming
Period5/11/207/11/20

Keywords

  • Laser bathymetry
  • SNR
  • Space distribution
  • Underwater propagation

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