| 张平,张文杰,冀新臣,刘牧星,杨申勇.基于 GMT脚本的多旋翼无人机航磁质量评价系统的开发和应用[J].矿产勘查,2025,16(7):1709-1716 |
| 基于 GMT脚本的多旋翼无人机航磁质量评价系统的开发和应用 |
| Development and application of multirotor aeromagnetic quality evaluation system based on GMT script |
| 投稿时间：2023-12-27 |
| DOI：10.20008/j.kckc.202507013 |
| 中文关键词: 航磁 多旋翼无人机 质量评价 GMT 脚本 |
| 英文关键词: aeromagnetism multi-rotor unmanned aerial vehicle quality evaluation GMT script |
| 基金项目:本文受中国地质调查局项目(DD20190166)资助。 |
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| 中文摘要: |
| 多旋翼无人机航磁是近年来发展起来的一种低飞航磁系统，具有仿地飞行能力，可在特殊景观区等人力不可企及的区域开展工作，但其受限于续航时间，通常以设置多个起飞点的方式分区块施工，在实际测量中往往需频繁更换起飞点。低飞航磁易受风的影响，不可能严格按照规划航线飞行，在飞行测量过程中遇强电磁干扰可能出现不正常的磁场值，甚至导致磁力仪信号失锁而采集不到数据，因此有必要在完成每架次航磁测量工作后及时评价数据质量，对不合格的测线进行问题分析并及时补测。以往航磁质量评价过程较繁琐，需截取各测线数据后对飞行质量和航磁质量分别进行评价。本文通过在 GMT软件平台下编写脚本，开发出适用于多旋翼无人机航磁的质量评价系统，实现了测线数据提取和飞行质量、航磁质量的统计计算，结合卫星影像和 DEM数据输出为矢量化图件，便于野外人员快速分析和判断航磁工作质量，对提升航磁野外工作效率、保障施工连续性方面起到了促进作用。 |
| 英文摘要: |
| The Aeromagnetic system of multirotor is a recently developed low-flying aeromagnetic system,which possesses ground-like flight capabilities and can operate in inaccessible terrains. However, due to its limited endurance, it often requires multiple takeoff points for measurement purposes, resulting in frequent replacements of these points. Additionally, the low-flying nature of this system makes it susceptible to wind disturbances and devia-tions from planned routes. Strong electromagnetic interference may lead to abnormal magnetic field values duringflight measurements, potentially causing loss of magnetometer signal and data collection failure. Therefore, timelyevaluation of data quality is essential after each aeromagnetic measurement flight to identify any unqualified surveylines and conduct supplementary measurements accordingly. Previously, the process of aeromagnetic quality evalua-tion was cumbersome as both flight quality and aeromagnetic quality had to be assessed separately after interceptingdata from each survey line. In this study, we have developed a script-based quality evaluation system for multirotoraeromagnetic measurements using the GMT software platform. This system enables efficient extraction of survey linedata along with statistical calculations for assessing both flight quality and aeromagnetic quality. |
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