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摘要: 无人机作为半航空瞬变电磁的飞行平台, 其本身会产生电磁信号, 对采集的瞬变电磁信号产生影响。本文研究了半航空瞬变电磁数据采集过程中无人机产生的噪声对采集数据的影响, 通过开展野外试验、系统性能测试等, 分析了不同转速、不同吊挂长度、不同飞行高度、不同飞行速度对无人机噪声的影响, 提出了通过确定最优吊挂长度、加入屏蔽层等措施进行无人机噪声的压制方法。本文研究基于KWT-X8L-25八旋翼无人机开展, 其研究过程与研究思路同样适用于其他型号的无人机, 可以为半航空瞬变电磁飞行平台的遴选提供借鉴。Abstract: As a semi-airbone transient electromagnetic (TEM) platform, drones inherently generate electromagnetic signals that may interfere with the collected transient electromagnetic data. This study investigated the impacts of drone noise on the collected data. Through outdoor experiments and systematic performance testing, this study analyzed the impacts of drone noise under varying rotor speeds, suspension lengths, flight height, and flight speeds. Accordingly, this study proposed methods for suppressing drone noise, such as determining the optimal suspension length and incorporating shielding layers. The study was conducted using the KWT-X8L-25 octocopter drones, but the research methodology and philosophy are also applicable to other drone models, thus serving as a reference for the selection of semi-airborne TEM platforms.
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Key words:
- semi aviation transient electromagnetic /
- drone noise /
- flight altitude
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