On the use of Electromagnetic Time Reversal for lightning location

Lightning is one the major sources of electromagnetic interferences. Multisensor networks known as lightning location systems (LLS) are widely used to detect and locate different types of lightning discharges (see, e.g., Cummins and Murphy, IEEE Trans. EMC, 51 (3), pp. 499–518, 2009). Modern LLS use different detection techniques such as the Time-of-Arrival (ToA), Magnetic Direction Finding (MDF) and interferometry. More recently, Electromagnetic Time Reversal (EMTR) has been used to develop a technique to locate lightning discharges (Mora et al., Atmospheric Research, 117, pp. 78–85, 2012; Lugrin et al., IEEE Trans. EMC, 56 (1), pp. 149–158, 2014). Lugrin et al. showed that time-of-arrival can be considered as a particular case of electromagnetic time reversal.