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。
The track for ultra short baseline （USBL） acoustic sensor installation alignment calibration is de- signed by using the symmetric measurement to cancel estimate bias. By analyzing the influences of different an- gle 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. Compari- son 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.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2016年第5期1010-1016,共7页
Systems Engineering and Electronics
基金
国家高技术研究发展计划(863计划)(2012AA091401
2010AA093901)资助课题
关键词
超短基线
安装误差标定
测线规划
传感器校准
ultra-short baseline （USBL） installation alignment calibration track design
sensor calibration
作者简介
李昭（1987-），男，博士研究生，主要研究方向为水声定位与导航技术。E-mail：lizha00517@sina．cn
郑翠娥（1982-），女，讲师，博士，主要研究方向为水声定位与导航技术。E-mail：zhengcuie@hrbeu．edu．cn
孙大军（1972-），男，教授，博士，主要研究方向为水声定位与导航技术、水声通信、水下目标探测。E-mail：sundajun@hrbeu．edu．cn
