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Implementation of a Super-resolution Algorithm to Improve Spatial Resolution of Optical Signals

Authors:
Byung-Jin Lee
Sung-Woo Kim
Bong Guk Yu
Kyung Seok Kim

Keywords: optical time domain reflectometer; spatial resolution; cross-correlation; super-resolution algorithm

Abstract:
An Optical Time Domain Reflectometer (OTDR) is the most widely used instrument to monitor problems in currently installed optical fiber. It evaluates the physical characteristics of optical fiber, such as transmission loss and connection loss. It is important to increase the spatial resolution to accurately detect optical path problems using an OTDR. When the pulse width is greater than twice the distance between the two reflectors, the two reflected pulses overlap, and it is not possible to distinguish the reflected signal. To overcome these limitations, this paper proposes a spatial resolution–enhancement method by applying a super-resolution algorithm. As a result of digital signal processing implementation, it is possible to analyze the event interval more precisely by improving the resolution when applying the super-resolution algorithm.

Pages: 1 to 4

Copyright: Copyright (c) IARIA, 2018

Publication date: July 22, 2018

Published in: conference

ISSN: 2519-8459

ISBN: 978-1-61208-658-3

Location: Barcelona, Spain

Dates: from July 22, 2018 to July 26, 2018