Design and experiment of a high precision ocean observation buoy motion measurement system

被引：0

作者：

Li Y. ^{[1
,2
,3
]}

Kong Q. ^{[2
]}

Yang Y. ^{[2
]}

Wang J. ^{[1
,2
,3
]}

Liu S. ^{[2
]}

机构：

[1] College of Meteorology and Oceanography, National University of Defense Technology, Changsha

[2] Institute of Oceanographic Instrumentation, Qilu University of Technology, Shandong Academy of Sciences, Qingdao

[3] Laoshan Laboratory, Qingdao

来源：

Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument | 2023年 / 44卷 / 11期

关键词：

buoy motion measurement; comparative experiments and sea trials; global navigation satellite system; least square descent correlation algorithm; micro inertial measurement unit;

D O I：

10.19650/j.cnki.cjsi.J2311703

中图分类号：

学科分类号：

摘要：

Ocean buoys generate six degrees of freedom motion due to the influence of marine dynamic environment, which can affect the reliable operation of observation platform and instruments, and even lead to measurement results errors, affecting the safety and data quality of ocean buoys. Therefore, the accurate measurement of buoy motion is of great practical significance. This article establishes a hardware system by integrating a micro inertial measurement unit with a global navigation satellite system to obtain buoy motion-related data. A carrier phase smoothing filter model is used for data preprocessing, and a least squares redundancy algorithm is fused to calculate the buoy attitude data, obtaining high-precision dynamic buoy attitude. After comparing the results of a swaying platform simulation of motion, the root mean square error of attitude angle is less than 0.5°, and the root mean square error of horizontal velocity is less than 0. 05 m/s. Additionally, through practical sea trials experiments, especially during the passage of a typhoon, the test results show that the system works stably and reliably without divergence phenomenon, with over 95% overall valid data. © 2023 Science Press. All rights reserved.

引用

页码：1 / 12

页数：11

共 20 条

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