Work

Directional active noise control for drone noise reduction

Year: 2025

Type: article

Abstract: Drones have become essential tools for applications ranging from aerial surveillance to last-mile delivery, raising concerns about noise pollution in populated environments. This paper presents a directional active noise control (ANC) framework that targets far-field noise reduction, rather than local suppression. A virtual microphone-based ANC algorithm is employed, using a near-drone microphone array to attenuate noise in a specific region. Experiments in a semi-anechoic chamber show an average reduction of 4.78 dB in the 1500-2400 Hz band and up to 10 dB at harmonic frequencies, highlighting the promise of directional ANC for quieter drone operations in sensitive settings.

Source: JASA Express Letters

DOI: 10.1121/10.0039953

Authors: Hanwen Bi, Yile (Angela) Zhang, Thushara D. Abhayapala, Prasanga N. Samarasinghe

Institution: Australian National University

Language: English

Topic: Advanced Adaptive Filtering Techniques

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funder: Australian Research Council

Award: Human-Unmanned Aerial Vehicle interactions: Making drones talk and listen