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De-embedding Unmatched Connectors for Electric Cable Fault Diagnosis

Qinghua Zhang 1 Nassif Berrabah 1 Maud Franchet 2 Denis Vautrin 2 
1 I4S - Statistical Inference for Structural Health Monitoring
IFSTTAR/COSYS - Département Composants et Systèmes, Inria Rennes – Bretagne Atlantique
Abstract : In order to make accurate reflectometry measurements on electric cables for fault diagnosis, connector de-embedding is a procedure for compensating measurement distortions caused by unmatched connectors. The key step in such a procedure is the characterization of the connectors, which is realized through measurements on a pair of connectors linked by a short cable segment. The analysis for deducing the characteristics of a single connector from measurements made on an assembled pair is known as the bisection problem. In this paper, after recalling the underdetermined nature of the bisection problem, a practically effective de-embedding procedure is proposed based on a particular regularization technique. Numerical examples are presented to illustrate the effectiveness of this procedure.
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Submitted on : Wednesday, October 31, 2018 - 11:43:41 AM
Last modification on : Friday, June 17, 2022 - 1:26:53 PM
Long-term archiving on: : Friday, February 1, 2019 - 1:31:37 PM


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Qinghua Zhang, Nassif Berrabah, Maud Franchet, Denis Vautrin. De-embedding Unmatched Connectors for Electric Cable Fault Diagnosis. SAFEPROCESS 2018 - 10th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes, Aug 2018, Warsaw, Poland. pp.1439-1444, ⟨10.1016/j.ifacol.2018.09.535⟩. ⟨hal-01909588⟩



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