Title :
SNR enhancement of OTDR using biorthogonal codes and generalized inverses
Author :
Lee, Duckey ; Yoon, Hosung ; Kim, Pilhan ; Park, Jonghan ; Kim, Na Young ; Park, Namkyoo
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., South Korea
Abstract :
We propose and experimentally demonstrate a novel technique which significantly improves the performance of optical time-domain reflectometry (OTDR). Applying biorthogonal codes and Moore-Penrose generalized inverses, a signal-to-noise ratio enhancement of up to 9.04 dB, namely a coding gain, was achieved over conventional OTDR.
Keywords :
codes; optical noise; optical time-domain reflectometry; Moore-Penrose generalized inverses; OTDR; SNR enhancement; biorthogonal codes; coding gain; optical time-domain reflectometry; Biomedical optical imaging; Decoding; Noise measurement; Optical fiber communication; Optical pulses; Probes; Pulse measurements; Reflectometry; Spatial resolution; Time domain analysis; Biorthogonal codes; Moore–Penrose generalized inverses; optical fiber communications; optical time-domain reflectometry (OTDR);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.836916
