SNR Improvement of a Non-Coherent OTDR Using Biorthogonal Codes and Moore-Penrose Generalized Inverses

摘要

We propose and experimentally demonstrate a novel technique which significantly improves the performance of an optical time domain reflectometry, using biorthogonal codes and Moore-Penrose generalized inverses. The achieved SNR enhancement over a conventional OTDR, namely coding gain, is 9.04 dB when 256-bit codes are used.