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

doi:10.1117/12.2586999

12 March 2021 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

Author Affiliations +

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 117634I (2021) https://doi.org/10.1117/12.2586999
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

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.

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Song Yang, Shixiang Cao, Jinghao Zhang, Xuling Lin, Jing Xu, Zhenmin Shen, Qian Sun, Zhiqiang Wu, Weidong Shang, and Yongchao Zheng "Study on returned signal spatial distribution and detection ability of laser bathymetric system", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 117634I (12 March 2021); https://doi.org/10.1117/12.2586999

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