期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：237
期号：3
页码：032028
DOI：10.1088/1755-1315/237/3/032028
出版社：IOP Publishing
摘要：The systematic error due to the spatial and temporal variation of sound velocity profile (SVP) is the main error source for positioning a single transponder. Difference techniques can eliminate systematic error of long period, while the short period terms will still retain. This paper focuses on improving the accuracy of the single transponder positioning when the systematic errors of short period exists. Based on the equivalent SVP method, a new method was put forward to calculate the effective sound velocity (ESV) which will be used to improve the traditional observation equation. Then, the three-dimensional coordinates of transponder will be determined by least squares adjustment. Simulation experiments shows that the new methods can greatly improved accuracy and efficiency for positioning a single transponder.
