The techniques used in optical time domain reflectometry (OTDR) are analyzed, including the traditional single pulse OTDR, Gray coding OTDR and S coding OTDR. The performances of the three techniques are studied and compared.%本文对光时域反射技术(OTDR)中常用的单脉冲技术和多脉冲编码技术方法进行了分析和介绍。通过分析格雷码和S码技术的理论和实现方法,详细讨论了格雷码和S码的性能,并与传统的单脉冲技术进行了对比。
展开▼