海底大地秩亏基准网快速标校方法  

Rapid calibration method for rank defect submarine geodetic station network

作　　者：孙大军 欧阳雨洁[1,2,3] 韩云峰 SUN Dajun;OUYANG Yujie;HAN Yunfeng(National Key Laboratory of Underwater Acoustic Technology,Harbin Engineering University Harbin,150001;Key Laboratory of Marine Information Acquisition and Security(Harbin Engineering University),Ministry of Industry and Information Technology Harbin,150001;College of Underwater Acoustic Engineering,Harbin Engineering University Harbin,150001)

机构地区：[1]哈尔滨工程大学水声技术全国重点实验室,哈尔滨150001 [2]工业和信息化部海洋信息获取与安全工信部重点实验室(哈尔滨工程大学),哈尔滨150001 [3]哈尔滨工程大学水声工程学院,哈尔滨150001

出　　处：《声学学报》2023年第3期506-514,共9页Acta Acustica

基　　金：国家重点研发计划项目(2020YFB0505805)资助。

摘　　要：基于信标互测距信息与绝对坐标信息的融合,提出一种海洋大地控制网快速标校方法。相较于现有方法,快速标校方法降低了自由网平差对起算条件的需求,减少了50%以上的绝对标定点数目,标校效率与绝对坐标精度显著提升。在大范围布设时,优势明显。此外,通过对阵型与绝对校准点数目的分析,提出了几种典型阵型在理想条件下的布设方案。浅水试验结果表明,在保证基准网标校精度高于0.2 m的条件下,标校效率提升了50%。A rapid calibration method for marine geodetic control networks based on the combination of beacon mutual ranging information and absolute coordinate information is proposed.Compared with existing methods,the rapid calibration method reduces the initial condition restriction of free net adjustment;the number of absolute calibration points is reduced by more than 50%,and the calibration efficiency and absolute coordinate precision are significantly improved.In addition,several typical formations under ideal conditions are proposed by analyzing the formations and absolute calibration points.The shallow water test results show that the calibration efficiency is improved by 50%when the calibration precision of the reference network is greater than 0.2 m and the calibration precision of the reference network is greater than 0.2 m.

关 键 词：水下控制网网型校准 水下长基线定位 秩亏自由网平差 水下基准点定位 

分 类 号：P229[天文地球—大地测量学与测量工程] P733.2[天文地球—测绘科学与技术]