摘要
无人机航磁测量是现今海洋磁测的新技术新方法之一,可解决在海岛礁、海岸带以及冰面覆盖海域等复杂海区中实施高精度、高分辨率磁测的技术问题。采用我国自主研发的海洋磁测最新科研成果,通过两次飞行测量试验,并对航磁测量数据进行处理、分析和精度评估,得到如下结果:自主研发的航磁系统具有动态噪声小,噪声水平为31.46±22.11 pT;测量精度高,两个区块3个架次交叉点磁场差值的均方差分别为0.440 nT和0.502 nT,以及动态补偿性能好等技术特点。无人机航磁测量具有工作效率高、灵活机动、可操作性强等技术优势,满足海洋调查规范技术要求。
UAV aeromagnetic survey is one of the new technology and method of marine magnetic surveying,which solves the technical problems of implementing high-precision and high-resolution magnetic surveys in complex marine geo-environment such as islands,reefs,coastal zones,and ice-covered sea areas.This paper adopts the latest achievements of domestic marine magnetic surveying independently developed by our country,through two flight measurement experiments,We process and analyze the aeromagnetic survey data,evaluate the accuracy.Especially in the second experiments,technically improved instruments and vertical fixed-wing flying platform were used,The following conclusions of the system technical characteristics are obtained:The self-developed aeromagnetic system has low dynamic noise,and the noise level is 31.46±22.11 pT;the mean square deviation of the magnetic field difference is 0.440 nT and 0.502 nT in two regions and three sorties of magnetic survey;And the aeromagnetic compensation performance is excellent.UAV aeromagnetic survey has technical advantages such as high work efficiency,flexibility and maneuverability,and meets the technical requirements in marine survey specifications.
作者
周普志
汤民强
刘迪仁
魏巍
彭聪
ZHOU Puzhi;TANG Minqiang;LIU Diren;WEI Wei;PENG Cong(South China Sea Marine Survey and Technology Center,State Oceanic Administration,Guangzhou 510275,China;Key Laboratory of Marine Environmental Survey Technology and Application,Ministry of Natural Resources,Guangzhou 510275,China;Beijing Xinlong nuclear technology center,Beijing 100101,China;Beijing Information Technology College,Department of Education and Health,Beijing 100015,China)
出处
《海洋测绘》
CSCD
北大核心
2022年第1期30-35,共6页
Hydrographic Surveying and Charting
基金
国家重点研发计划(2017YFF0107405)
自然资源部海洋环境探测技术与应用重点实验室开放基金(MESTA-2020-A003)。
关键词
国产无人机航磁系统
飞行测试
动态噪音
动态磁补偿
精度评估
domestic UAV aeromagnetic system
flight testing
dynamic noise
dynamic magnetic compensation
accuracy assessment
作者简介
周普志(1981-),男,湖北荆州人,高级工程师,硕士,主要从事海洋地球物理勘察与研究。
