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Spiking neural networks for radio frequency interference detection in radio astronomy
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Spiking neural networks for radio frequency interference detection in radio astronomy
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Journal Article
Spiking neural networks for radio frequency interference detection in radio astronomy
2025
Overview
Automated systems capable of real-time operation with minimal energy consumption are increasingly important in modern radio telescopes. Spiking Neural Networks (SNNs) promise efficient and dynamic spatio-temporal data processing. This paper reformulates a significant challenge in radio astronomy, Radio Frequency Interference (RFI) detection, as a time-series segmentation task suited for SNN execution. We explore several spectrogram encoding methods and network parameters, applying first and second-order leaky integrate and fire SNNs to tackle RFI detection. We introduce a divisive normalisation-inspired pre-processing step, improving detection performance across multiple encodings strategies. Our approach achieves competitive performance on a synthetic dataset and compelling initial results on real data from the Low-Frequency Array (LOFAR) establishing a baseline for future work. We position SNNs as a viable path towards real-time RFI detection, with many possibilities for follow-up studies. These findings highlight the potential for SNNs performing complex time-series tasks, paving the way towards efficient, real-time processing in radio astronomy and other data-intensive fields.
This work addresses the challenges of radio frequency interference (RFI) in radio astronomy. The authors train spiking neural networks on synthetic and real data, demonstrating a viable path for real-time, energy-efficient RFI detection.
