适用于任意阵列结构的基线分解超短基线定位算法。

IF 2.1 2区 物理与天体物理 Q2 ACOUSTICS
Lianglong Da, Baoheng Liu, Sichen Zou, Xiaochuan Zhang
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引用次数: 0

摘要

随着海洋经济的快速发展,水声定位技术在海洋工程中发挥着越来越重要的作用。超短基线(USBL)水声定位系统具有体积小、操作简单、使用灵活等优点,已得到广泛应用。针对现有 USBL 声学定位算法定位精度低、计算复杂的问题,提出了一种任意阵列结构的基线分解定位算法。该算法以坐标系变换理论为基础,建立基阵中各基线的定位观测方程,采用最小二乘法,通过选择不同的基线组合得到定位结果。模拟了不同定位模型自身的系统误差,然后分别分析了时延、元素坐标和声速三个参数误差对定位结果的影响。最后,仿真结果和海试数据表明,与现有算法相比,该算法不仅简化了复杂的计算过程,而且提高了定位精度和鲁棒性,具有较好的应用效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A baseline decomposition ultra-short baseline localization algorithm for arbitrary array structures.

With the rapid development of the marine economy, hydroacoustic positioning technology plays an increasingly important role in marine engineering. The ultra-short baseline (USBL) hydroacoustic positioning system has the advantages of small size, simple operation, and flexible use, and has been widely used. Aiming at the existing USBL acoustic positioning algorithm with low positioning accuracy and complex calculation, a baseline decomposition localization algorithm with arbitrary array structure is proposed. The algorithm is based on the theory of coordinate system transformation, establishes positioning observation equations for each baseline in the base array, and adopts the least squares method to obtain positioning results by selecting different combinations of baselines. The systematic errors of different positioning models themselves are simulated, and then the effects of the three parameter errors, namely, time delay, element coordinates, and sound speed, on the positioning results are analyzed, respectively. Finally, the simulation results and sea trial data show that, compared with the existing algorithms, this algorithm not only simplifies the complicated computation process, but also improves the positioning accuracy and robustness, and has a better application effect.

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来源期刊
CiteScore
4.60
自引率
16.70%
发文量
1433
审稿时长
4.7 months
期刊介绍: Since 1929 The Journal of the Acoustical Society of America has been the leading source of theoretical and experimental research results in the broad interdisciplinary study of sound. Subject coverage includes: linear and nonlinear acoustics; aeroacoustics, underwater sound and acoustical oceanography; ultrasonics and quantum acoustics; architectural and structural acoustics and vibration; speech, music and noise; psychology and physiology of hearing; engineering acoustics, transduction; bioacoustics, animal bioacoustics.
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