Toward a detection approach of surge precursors using a semi-classical signal analysis method Michaël Deligant, Michaël Pereira, Taous-Meriem Laleg-Kirati, Farid Bakir and Sofiane Khelladi Eur. Phys. J. Plus, 137 6 (2022) 727 Published online: 24 June 2022 DOI: 10.1140/epjp/s13360-022-02923-0