Robust Low-Cost Drone Detection and Classification in Low SNR Environments

• URL: http://arxiv.org/abs/2406.18624v3
• Date: Thu, 07 Nov 2024 10:35:32 GMT
• Title: Robust Low-Cost Drone Detection and Classification in Low SNR Environments
• Authors: Stefan Glüge, Matthias Nyfeler, Ahmad Aghaebrahimian, Nicola Ramagnano, Christof Schüpbach,
• Abstract summary: We evaluate various convolutional neural networks (CNNs) for their ability to detect and classify drones. We demonstrate a low-cost drone detection system using a standard computer, software-defined radio (SDR) and antenna.
• Score: 0.9087641068861043
• License:
• Abstract: The proliferation of drones, or unmanned aerial vehicles (UAVs), has raised significant safety concerns due to their potential misuse in activities such as espionage, smuggling, and infrastructure disruption. This paper addresses the critical need for effective drone detection and classification systems that operate independently of UAV cooperation. We evaluate various convolutional neural networks (CNNs) for their ability to detect and classify drones using spectrogram data derived from consecutive Fourier transforms of signal components. The focus is on model robustness in low signal-to-noise ratio (SNR) environments, which is critical for real-world applications. A comprehensive dataset is provided to support future model development. In addition, we demonstrate a low-cost drone detection system using a standard computer, software-defined radio (SDR) and antenna, validated through real-world field testing. On our development dataset, all models consistently achieved an average balanced classification accuracy of >= 85% at SNR > -12dB. In the field test, these models achieved an average balance accuracy of > 80%, depending on transmitter distance and antenna direction. Our contributions include: a publicly available dataset for model development, a comparative analysis of CNN for drone detection under low SNR conditions, and the deployment and field evaluation of a practical, low-cost detection system.

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