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http://dx.doi.org/10.5762/KAIS.2020.21.5.84

Estimation Method of Cable Fault Location in Rocket Motors Using M-sequence Signals  

Son, Ji-Hong (The 5th Research and Development Institute, Agency for Defense Development)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.5, 2020 , pp. 84-92 More about this Journal
Abstract
This paper describes the estimation method of cable fault location in rocket motors using M-sequence (Maximal Length Sequence). In order to estimate the location of a cable fault, three methods have been usually used: TDR (Time Domain Reflectometry), FDR (Frequency Domain Reflectometry), and TFDR (Time-Frequency Domain Reflectometry). However, these methods suffer the disadvantage of requiring users to be close to a test field, which is dangerous. The estimation method of cable fault location using M-sequence is proposed to solve this problem. The proposed method can make use of DAS (Data Acquisition System). The experiments were three cases: damaged, open, and short. The RG-58 coaxial cable was used in the experiments. As a result, the proposed method has better performance than that of conventional methods such as TDR and TFDR.
Keywords
Cable; Fault Location; Fault Detection; M-sequence; Matched Filter; Defense System;
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