| 超短基线声传感器安装偏差标定测线规划 |
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| 引用本文： | 李昭,郑翠娥,孙大军. 超短基线声传感器安装偏差标定测线规划[J]. 系统工程与电子技术, 2016, 38(5): 1010. DOI: 10.3969/j.issn.1001-506X.2016.05.07 |
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| 作者姓名： | 李昭 郑翠娥 孙大军 |
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| 作者单位： | 1. 哈尔滨工程大学水声工程学院, 黑龙江 哈尔滨 150001;2. 水声技术国防重点实验室, 黑龙江 哈尔滨 150001 |
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| 摘 要： | 利用测线对称性对固定测量偏差的抵消作用,对超短基线声传感器安装偏差标定测线进行了规划。通过分析各类测角偏差对标定的影响,得出安装偏角估值无偏时测线应满足的对称性与重合性条件,规划了满足该条件3类测线:直线测线、圆测线及将两者合并的组合测线,并通过仿真计算与实验数据处理对3类测线进行了比对。仿真与实验结果表明组合测线在不能严格保证对称重合测量的实际情况下标定结果更准确、一致性更好,修正后超短基线系统的定位精度更高。因此将组合测线作为超短基线声传感器安装偏差的标定测线。
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Track design for the acoustic sensor installation alignment calibration in ultra-short baseline positioning system |
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| LI Zhao,ZHENG Cui-e,SUN Da-jun. Track design for the acoustic sensor installation alignment calibration in ultra-short baseline positioning system[J]. System Engineering and Electronics, 2016, 38(5): 1010. DOI: 10.3969/j.issn.1001-506X.2016.05.07 |
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| Authors: | LI Zhao ZHENG Cui-e SUN Da-jun |
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| Affiliation: | 1. College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China;;2. Science and Technology on Underwater Acoustic Laboratory, Harbin 150001, China |
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| Abstract: | The track for ultra short baseline (USBL) acoustic sensor installation alignment calibration is designed by using the symmetric measurement to cancel estimate bias. By analyzing the influences of different angle measurement biases, symmetry and repeatability requirement that can ensure unbiased alignment estimates are obtained. Straight line tracks, round tracks and tracks combined with the former two are found to satisfy these requirements. Simulations and field trial are carried out to compare these three kinds of tracks. Comparison results show that combined tracks can provide better calibration accuracy and precision when the symmetry and repeatability requirement cannot be strictly guaranteed. Therefore, this combined track is recommended as the track for USBL alignment calibration. |
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