TDoA-based localisation of radiated IEMI sources

Intentional electromagnetic interference (IEMI) poses an increasing threat to electronic systems, as the technology and expertise required to construct a disruptive source become more readily available. Localizing the IEMI source is an additional way to fight against these attacks. In this paper, a possible scenario of an IEMI attack is described and the challenges of localising the IEMI source in that scenario are investigated. A number of localisation algorithms that could be employed are analysed and compared. The time difference of arrival (TDoA) algorithm is shown to be a promising solution. This paper describes the TDoA algorithm and reports the initial performance estimation for the given IEMI attack scenario.