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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