Assessment of the bathymetry and ability to withstand wind and waves in shallow waters for unmanned surface vessels

doi:10.13474/j.cnki.11-2246.2022.0296

Abstract

Abstract: Traditional survey vessels can not perform bathymetry in shallow waters due to their large draft values. Unmanned surface vessels(USV) with small draft values provide new solutions for bathymetry in shallow waters. Using USV, non-tide sounding and network GNSS RTK technology, the bathymetry experiments in shallow waters are performed under different wind and waves conditions. The ability of USV to withstand wind and waves while working in shallow waters is quantitatively assessed from path tracking precision and bathymetry accuracy. The results show that wave height of 0~0.3 m and wind level of 0~2 are the reasonable threshold for bathymetry in shallow waters using USV. The USV with non-tide sounding technology can achieve high-precision measurement of bathymetry in shallow waters, and the accuracy can meet the requirements of relevant sounding specifications under reasonable wind and waves conditions. USV has broad application prospects in bathymetry and seabed topography survey in shallow waters.

Key words: unmanned surface vessel, GNSS RTK, no tide mode, bathymetry in shallow waters, ability to withstand wind and waves

CLC Number:

P229

CAO Baojie, GAO Zhiqiang, SHANG Weitao. Assessment of the bathymetry and ability to withstand wind and waves in shallow waters for unmanned surface vessels[J]. Bulletin of Surveying and Mapping, 2022, 0(10): 68-72,79.

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