TITLE:
Correction of Error Due to Vessel Movement in Underwater Topographic Data Measurement
AUTHORS:
Satoshi Iwakami, Masahiko Tamega, Masahide Sanada, Michiaki Mohri, Yoshitaka Iwakami, Naoki Okamoto, Eishi Mitsui, Hidetaka Chikamori, Ryosuke Akoh, Shuji Jimbo, Masaji Watanabe
KEYWORDS:
Underwater Topography, Positioning, Depth measurement, Vessel Move-ment, Error Compensation
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.12 No.4,
April
30,
2024
ABSTRACT: In underwater topographic measurement implementing the positioning by a GPS receiver and/or a GNSS receiver and the depth measurement by an echo sounder, an antenna connected to a GPS receiver or a GNSS receiver and a transreceiver of the echosounder are fixed to a vessel. On the other hand, a vessel is subject to movements such as longitudinal swayings (roll), sideways swayings (pitch), and bow swayings (yaw), which result in errors of output data. This study shows techniques to compensate for those errors.