Instantaneous frequency estimation of the Gaussian enveloped linear chirp signal for localizing the faults of the instrumental cable in nuclear power plant

Chun Ku Lee, Jin Bae Park, Tae Sung Yoon

Research output: Contribution to journalArticle

Abstract

Integrity of the control and instrumental cables in nuclear power plant is important to maintain the stability of the nuclear power plants. In order to diagnose the integrity of the cables, the diagnostic methods based on reflectometry have been studied. The reflectometry is a non-destructive method and it is applicable to diagnose the live cables. We introduce a Gaussian enveloped linear chirp reflectometry to diagnose the cables in the nuclear power plants. In this paper, we estimate the instantaneous frequency of the Gaussian enveloped linear chirp signal by using the weighted robust least squares filtering to localize the impedance discontinuities in the class IE instrumental cable.

Original languageEnglish
Pages (from-to)987-993
Number of pages7
JournalTransactions of the Korean Institute of Electrical Engineers
Volume62
Issue number7
DOIs
Publication statusPublished - 2013 Jul 1

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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