Research on Acoustic Array Localization Algorithm under UAV Noise Interference

Abstract

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The deployment of UAVs equipped with acoustic arrays for detecting abnormal discharges in transmission line components, such as insulators and fittings, holds significant application potential. However, the substantial impact of UAV self-noise constrains its wide adoption. Based on measurements of typical discharge sounds from transmission line insulator defects and the noise characteristics of an UAV, this paper proposes an abnormal discharge localization method that integrates the Steered Response Power (SRP) approach with spectral subtraction. Experiments conducted with a UAV-mounted acoustic array demonstrate that the proposed method substantially extends the detection distance compared with the conventional SRP method, thereby confirming its effectiveness. This study provides valuable reference for acoustic localization of abnormal discharges in power equipment under UAV-induced noise conditions.