Signal discrimination with wavelet algorithm and Pearson correlation-based algorithm in φ-OTDR systems

Autor:	Rui Liu, Yun Fei Cai, Zhi Hua Yu, Dai Li Mo
Rok vydání:	2021
Předmět:	History symbols.namesake Computer science symbols Wavelet algorithm Optical time-domain reflectometer Algorithm Signal Pearson product-moment correlation coefficient Computer Science Applications Education
Zdroj:	Journal of Physics: Conference Series. 1738:012055
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/1738/1/012055
Popis:	This paper presents a novel method of distinguishing signal, the way expected to reduce the nuisance alarm rate since the high nuisance alarm rate will restrict the capability of phase-sensitive optical time-domain reflection technology. The proposed method includes two parts: wavelet positioning mutation to obtain the perturbation area and Pearson correlation algorithm to directly convert the intensity of the perturbation into a useful amplitude. This technique avoids the use of irrelevant data in these differential signals and provides a simple and feasible new approach for distinguishing signal and optimizing the positioning speed of φ-OTDR systems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::53101eadca2d5b6e9bffe5d6706f317a https://doi.org/10.1088/1742-6596/1738/1/012055 Zobrazit plný text záznamu