超短基线定位系统近年来在海洋开发、河道及港口建设等领域得到了广泛应用。为实现其高精度的定位功能，需要在使用前对其进行精确校准。针对超短基线安装偏差校准问题，提出应用带约束最小二乘法来求解，并且在该校准方法的基础上，针对存在声速测量误差的情况，提出相应的处理方法。仿真结果表明，带约束最小二乘法适用于超短基线校准，并且具有一定的抗误差能力；当系统存在声速测量误差时，本文的处理方法仍有效。本文的研究结果可为超短基线安装偏差的精确校准提供参考。
Ultra short baseline(USBL) systems are widely used in channel and port construction, ocean exploration in recent years.In order to realize its hign precision positioning, USBL needs to be calibrated accurately beforehand. Aiming at the problem of USBL calibration for installation bias, this paper proposed an calibration method based on constrained least square, and also put forward the handing method on condition of sound speed measurement error. Simulation result shows that the constrained least square method is suitable for USBL calibration, and has ability of gross error resistance; when there exists sound speed measurement error, the proposed handing method is efficient. The purpose of this paper is to provide a reference for USBL accurate calibration for installation bias.
2021,43(7): 131-136 收稿日期：2020-07-11
DOI：10.3404/j.issn.1672-7649.2021.07.027
分类号：TN929.3
作者简介：赵俊波(1990-),男,工程师,研究方向为水下导航定位技术
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