Application of time-frequency domain reflectometry for detection and localization of a fault on a coaxial cable

Yong June Shin, Edward J. Powers, Tok Son Choe, Chan Young Hong, Eun Seok Song, Jong Gwan Yook, Jin Bae Park

Research output: Contribution to journalArticle

123 Citations (Scopus)

Abstract

In this paper, we introduce a new high-resolution reflectometry technique that operates simultaneously in both the time and frequency domains. The approach rests upon time-frequency signal analysis and utilizes a chirp signal multiplied by a Gaussian time envelope. The Gaussian envelope provides time localization, while the chirp allows one to excite the system under test with a swept sinewave covering a frequency band of interest. This latter capability is of particular interest when testing communication cables and systems. Sensitivity in detecting the reflected signal is provided by a time-frequency cross-correlation function. The approach is verified by experimentally locating various types of faults, located at various distances, in RG 142 and RG 400 coaxial cables.

Original languageEnglish
Pages (from-to)2493-2500
Number of pages8
JournalIEEE Transactions on Instrumentation and Measurement
Volume54
Issue number6
DOIs
Publication statusPublished - 2005 Dec

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Electrical and Electronic Engineering

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