基于小型无人艇的海洋磁力测量精度评价  

Accuracy evaluation of marine magnetic measurement based on small unmanned ship

作　　者：罗建刚 李海兵 刘静晓[1] 李海虎 罗骋 付碧波 LUO Jiangang;LI Haibing;LIU Jingxiao;LI Haihu;LUO Cheng;FU Bibo(Pilot National Laboratory for Marine Science and Technology,Qingdao 266237,China;Beijing Aerospace Control Device Institute,Beijing 100039,China)

机构地区：[1]青岛海洋科学与技术试点国家实验室,山东青岛266237 [2]北京航天控制仪器研究所,北京100039

出　　处：《海洋测绘》2022年第1期25-29,共5页Hydrographic Surveying and Charting

基　　金：国家自然科学基金(41976182);山东省重大科技创新工程专项(2018SDKJ0201);青岛海洋科学与技术国家实验室“主任基金”(QNLM201715);航天科技集团自主研发项目(天科研[2021]397)。

摘　　要：为了验证基于小型无人艇进行海上磁力测量的可行性,研制了船载海洋磁力测量系统,将其搭载于小型无人艇上,进行了海上磁力测量试验,在海上测量中获得了重复测线和交叉测线数据;对海上测量数据进行了处理,并按照相关规范和方法计算了重复线和交叉点的内符合精度,计算结果显示两条重复线的内符合精度分别达到1.06 nT和1.71 nT,交叉点内符合精度达到1.89 nT,这一测量精度基本满足了相关规范对一、二级海洋磁力测量的精度要求;通过本次海上试验,验证了基于小型无人艇进行海上磁力测量的可行性,可为后续仪器系统研发和海上测量应用提供借鉴。In order to verify the feasibility of marine magnetic measurement based on small unmanned ship,a shipborne marine magnetic measurement system was developed,which was carried on a small unmanned ship and carried out marine magnetic measurement tests,the data of repeated and cross lines were obtained in the marine survey test.The marine survey data are processed,and the internal coincidence accuracy of the repeated line and the intersection was calculated according to the relevant specifications and methods,the calculation results show that the internal coincidence accuracy of the two repetition lines reaches 1.06 nT and 1.71 nT respectively,and the internal coincidence accuracy of the intersection reaches 1.89 nT.This measurement accuracy basically meets the accuracy requirements of the relevant specifications for the primary and secondary marine magnetic survey.Through this marine test,the feasibility of marine magnetic measurement based on small unmanned ship is verified,which can provide reference for the development of subsequent instrument system and the application of marine measurement.

关 键 词：海洋磁力测量 重复线数据 交叉点数据 精度评价 小型无人艇 

分 类 号：P229.24[天文地球—大地测量学与测量工程]