Author:
Alekseev A E,Gorshkov B G,Bashaev A V,Potapov V T,Taranov M A,Simikin D E
Abstract
Abstract
In the present paper, we propose an approach based on the Kalman filter for demodulation in a dual-pulse phase-OTDR. Although the Kalman filter is well-developed and widely used method for the state estimation of a dynamic system, its use for demodulation in a phase-OTDR is proposed for the first time, to our best knowledge. Two main algorithms are considered and described in detail: the extended Kalman filter (EKF) and the unscented Kalman filter (UKF), the first one is fast and simple, but the second one is more accurate. A qualitative comparison of these algorithms with the differentiate and cross-multiply (DCM) algorithm is performed. The efficiency of the EKF and the UKF algorithms is experimentally verified.
Subject
Industrial and Manufacturing Engineering,Condensed Matter Physics,Instrumentation,Atomic and Molecular Physics, and Optics
Cited by
10 articles.
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