Resilient observation models for seafloor geodetic positioning

Y Yang, X Qin - Journal of Geodesy, 2021 - Springer
Acoustic positioning of the seafloor geodetic network is subject to the complex ocean
environment. The measurements are strongly affected by time-varying and location-varying …

Adjustment of transceiver lever arm offset and sound speed bias for GNSS-acoustic positioning

G Chen, Y Liu, Y Liu, Z Tian, M Li - Remote Sensing, 2019 - mdpi.com
Global Navigation Satellite System—Acoustic (GNSS-A) positioning is the main technique
for seafloor geodetic positioning. A transceiver lever arm offset and sound velocity bias in …

Seafloor geodetic network establishment and key technologies

Y Yang, Y Liu, D Sun, T Xu, S Xue, Y Han… - Science China Earth …, 2020 - Springer
Seafloor geodetic network construction involves the development of geodetic station shelter,
network configuration design, location selection and layout, surveying strategy, observation …

Centimeter-level-precision seafloor geodetic positioning model with self-structured empirical sound speed profile

S Xue, B Li, Z Xiao, Y Sun, J Li - Satellite Navigation, 2023 - Springer
Abstract In-field Sound Speed Profile (SSP) measurement is still indispensable for achieving
centimeter-level-precision Global Navigation Satellite System (GNSS)-Acoustic (GNSS-A) …

Single-differenced models for GNSS-acoustic seafloor point positioning

S Xue, Y Yang, W Yang - Journal of Geodesy, 2022 - Springer
Seafloor transponder coordinates are determined by measurements between a ship-borne
GNSS-acoustic transducer and the transponder. Differencing techniques can be applied to …

Improving GNSS-acoustic positioning by optimizing the ship's track lines and observation combinations

G Chen, Y Liu, Y Liu, J Liu - Journal of geodesy, 2020 - Springer
The position of a seafloor geodetic station can be determined by combining Global
Navigation Satellite System (GNSS) and acoustic technologies, called GNSS-acoustic …

GARPOS: Analysis software for the GNSS‐A seafloor positioning with simultaneous estimation of sound speed structure

S Watanabe, T Ishikawa, Y Yokota… - Frontiers in Earth …, 2020 - frontiersin.org
Global Navigation Satellite System–Acoustic ranging combined seafloor geodetic technique
(GNSS-A) has extended the geodetic observation network into the ocean. The key issue for …

Improvement of GPS/acoustic seafloor positioning precision through controlling the ship's track line

M Sato, M Fujita, Y Matsumoto, H Saito, T Ishikawa… - Journal of …, 2013 - Springer
The precision of GPS/acoustic seafloor positioning was improved by introducing a hull-
mounted onboard system in March 2008, which allows us to conduct acoustic ranging …

Investigation on total adjustment of the transducer and seafloor transponder for GNSS/Acoustic precise underwater point positioning

S Zhao, Z Wang, Z Nie, K He, N Ding - Ocean engineering, 2021 - Elsevier
Global navigation satellite system/acoustic (GNSS/A) underwater positioning technique has
drawn increasing attention in the fields of marine scientific research and engineering …

GPS/Acoustic seafloor geodetic observation: method of data analysis and its application

M Fujita, T Ishikawa, M Mochizuki, M Sato… - Earth, planets and …, 2006 - jstage.jst.go.jp
We have been developing a system for detecting seafloor crustal movement by combining
kinematic GPS and acoustic ranging techniques. A linear inversion method is adopted to …