Abstract

This paper carries on a systematic analysis of the behavior of the time reversal (TR) voltage and current transfer functions used to locate faults and defects along lines in function of their terminal conditions expressed in terms of reflection coefficients. Transfer functions for solid and soft transversal faults and longitudinal defects are considered, covering all the possible scenarios. The reflection coefficients swing from values very close to 1 (open-end condition) up to values close to −1 (short-circuit condition) passing through values near zero (matching condition). The results are discussed to assess the accuracy and scalability of the electromagnetic TR method for unmatched media.

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