再论“声纳测向精度海上动态测量计算公式”  

Re-discussion on“Calculation Formula of Sonar Direction Finding Accuracy on Sea Dynamic Survey”

作　　者：袁富宇[1] 代志恒 刘凯[1] 崔杰[1] YUAN Fu-yu;DAI Zhi-heng;LIU Kai;CUI Jie(Jiangsu Automation Research Institute,Lianyungang 222061,China)

机构地区：[1]江苏自动化研究所,江苏连云港222061

出　　处：《火力与指挥控制》2022年第1期89-97,102,共10页Fire Control & Command Control

摘　　要：声纳测向精度极大地影响着水下作战平台指控系统的性能,尤其是其中的目标运动要素解算功能。详细分析了目前工程仍在使用的一种声纳测向精度计算公式,提出了一种改进方法,使之能适应交叉航路态势,便于对艇艏圆柱阵/球形阵进行测试评估。鉴于已有方法的有偏性,提出了几种新的方法,新方法是渐近无偏的,量测点数越多,误差估计精度越高。针对存在系统偏差情形,提出了一种解决方案,仿真结果表明,当量测点充分多时(如n=1 000),该方案能精确地估计出随机误差(均方根)和系统偏差,为完善声纳测向误差的精度评估,提供了一种支持手段。The accuracy of the sonar direction finding greatly affects the performance of the command and control system of the underwater combat platform,especially the function of solving target motion elements. It analyzes in detail a calculation formula of sonar direction finding accuracy that is still used in engineering,and proposes an improved method to make it adapt to the situation of cross route,which is convenient for testing and evaluating the bow cylindrical array/spherical array. In view of the bias of existing methods,several new methods are proposed. The new method is asymptotically unbiased. The more measurement points,the higher the accuracy of error estimation. In view of the existence of systematic errors,a solution is proposed. The simulation results show that when the number of measurement points is sufficiently large(such asn=1 000),the modified scheme can accurately estimate random errors(root mean square)and system deviations,which provides a support method for improving the accuracy evaluation of sonar direction finding errors.

关 键 词：声纳测向 随机误差 系统偏差 精度评估 

分 类 号：TJ83[兵器科学与技术—武器系统与运用工程] TP391[自动化与计算机技术—计算机应用技术]