There may be unreal peaks on backscattering signal curve in the measurement of opticalfiberlinks by OTDR.
用OTDR测试光纤线路时，其背向瑞利散射信号曲线上常出现幻峰。
2
The research results show that PMD deteriorates the performance of opticalfiberlinks and becomes one of the main limiting factors.
分析表明：PMD造成光纤链路性能的严重恶化，成为限制其性能的最主要因素之一。
3
Due to the Fresnel reflection in opticalfiberlinks there will be dead zone existing in the measurement using OTDR. This paper gives a quantitative analysis of this so called dead zone.