{"ID":2838318,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2511.18130","arxiv_id":"2511.18130","title":"Precise Localization of High-Voltage Breakdown Events using $φ$-Optical Time-Domain Reflectometry on an Optical Ground Wire","abstract":"We present $φ$-OTDR for detecting and localising full spark-gap breakdowns by analysing backscattered light phase and frequency-domain signatures during high-voltage discharges synchronised with oscilloscope-recorded events. Measuring sub-kHz confirms clear discharge signatures and acoustic reconstruction over long links with $\\approx$ 10 m spatial resolution.","short_abstract":"We present $φ$-OTDR for detecting and localising full spark-gap breakdowns by analysing backscattered light phase and frequency-domain signatures during high-voltage discharges synchronised with oscilloscope-recorded events. Measuring sub-kHz confirms clear discharge signatures and acoustic reconstruction over long lin...","url_abs":"https://arxiv.org/abs/2511.18130","url_pdf":"https://arxiv.org/pdf/2511.18130v1","authors":"[\"Konstantinos Alexoudis\",\"Luke Silvestre\",\"Tom Huiskamp\",\"Jasper Müller\",\"Vincent Sleiffer\",\"Florian Azendorf\",\"Sander Jansen\",\"Chigo Okonkwo\",\"Tom Bradley\"]","published":"2025-11-22T17:28:41Z","proceeding":"eess.SP","tasks":"[\"eess.SP\"]","methods":"[]","has_code":false}