Title :
Resolution enhancement of correlated OTDR using eigen-decomposition based algorithm
Author :
Wonkyoung Lee ; Hun-Sik Kang ; Bheom Soon Joo
Author_Institution :
Opt. Internet Res. Dept., Electron. & Telecommun. Res. Inst., Daejeon, South Korea
Abstract :
This paper investigates the resolution enhancement of correlated OTDR using Eigen-decomposition based algorithm. The algorithm separates the space spanned by the measured data into what are called noise and signal subspace and then pseudo-spectrum is calculated by using signal steering vector and noise subspace matrix. Attenuation dead zone of the correlated OTDR is improved up to 45 % by the Eigen-decomposition based algorithm.
Keywords :
eigenvalues and eigenfunctions; optical noise; optical time-domain reflectometry; attenuation dead zone; correlated OTDR; eigen-decomposition based algorithm; noise; noise subspace matrix; pseudospectrum; resolution enhancement; signal steering vector; signal subspace; Multiple signal classification; Noise; Optical fibers; Optical reflection; Signal resolution; Correlated OTDR; Eigen-decomposition; multiple signal classification algorithm; resolution;
Conference_Titel :
Optical Internet 2014 (COIN), 2014 12th International Conference on
Conference_Location :
Jeju
DOI :
10.1109/COIN.2014.6950534
