In addition to the previously announced presentation by David Lindsay, Discussion Group C37 on Submarine Cables will have a presentation by Manfred Bawart with Baur, Austria, titled:
Effect of nonlinear TDR pulse propagation speed on long land and submarine cables
The presentation provides evidence of nonlinear pulse propagation on long land and submarine cables and points out the effect on the measurement accuracy in case of a cable fault.
The fault distance is most often determined using TDR technique. The TDR measurement accuracy is directly related to the effect of nonlinear pulse propagation.
However, the presentation also provides guidance on how accurate measurements can still be achieved with long cable systems.