1. Detection and location of multiple wiring faults via time--frequency-domain reflectometry
- Author
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Song, Eunseok, Shin, Yong-June, Stone, Philip E., Wang, Jingjiang, Choe, Tok-Son, Yook, Jong-Gwan, and Park, Jin Bae
- Subjects
Correlation (Statistics) -- Analysis ,Electric fault location -- Analysis ,Frequency response (Electrical engineering) -- Analysis ,Business ,Computers ,Electronics ,Electronics and electrical industries - Abstract
In this paper, we propose a high-resolution time--frequency-domain reflectometry technique as a methodology of detection and estimation of faults on a wire. This method adopts the time--frequency cross-correlation characteristics of the observed signal in both the time and frequency domains simultaneously. The accuracy of the proposed method is verified with experiments using a radio-guide-type coaxial cable and comparing it with traditional time-domain as well as frequency-domain reflectometry methods. It is clearly shown here that the proposed algorithm produces excellent results compared to the conventional methods for single as well as multiple fault cables. Index Terms--Chirp signal, fault detection, fault estimation, time--frequency cross-correlation function, time--frequency-domain reflectometry (TFDR), resolution. more...
- Published
- 2009