Unmanned aerial vehicle electromagnetic interference positioning and suppression method, system, device and medium

Abstract

The invention discloses an unmanned aerial vehicle electromagnetic interference positioning and suppression method, system and device and a medium, and the method comprises the following steps: designing a broadband L-shaped array antenna according to the communication frequency and an easily interfered frequency band of an unmanned aerial vehicle, and determining the interval of the array antenna; when the measured electromagnetic intensity exceeds a certain threshold value, according to the electric field intensity measured by the antenna and the electromagnetic interference time delay received by the antenna, establishing an inter-antenna weighting factor characteristic quantity, detecting an interference peak value suffered by a group through the inter-antenna weighting factor characteristic quantity, and obtaining an inter-antenna delay model in electromagnetic interference transmission; a local target source electric field signal direction of arrival and a local target source space geometric position coordinate are calculated, the local target source electric field signal direction of arrival comprises parameters of an elevation angle and a direction angle, and an electromagnetic interference position is determined; according to electromagnetic intensity time domain characteristics measured by different antennas, electromagnetic interference waveforms are calculated and analyzed, and effective information required by swarm intelligence is obtained. Safe and stable operation of the unmanned aerial vehicle cluster can be guaranteed.

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