论文标题
具有高空间分辨率的遥感的光纤
Optical fiber for remote sensing with high spatial resolution
论文作者
论文摘要
讨论了将光纤作为传感器以及传输介质用于传感数据，从而可以在数十公里处使用没有电源的光学活动传感器。根据审讯系统，可以实现少于毫米的空间分辨率。基本的感应原理是光学时域反射仪（OTDR），直接检测或相干检测雷利后冰片或菲涅耳反射信号。通过传输序列与接收信号之间的互相关来改善空间分辨率。
The use of optical fiber as sensor as well as transmission medium for sensing data is discussed, enabling the use of optically active sensors without power supply at distances of tens of kilometers. Depending on the interrogation system, a spatial resolution of less than a millimeter can be achieved. The basic sensing principle is optical time-domain reflectometry (OTDR) with direct detection or coherent detection of the Rayleigh back-scattered or Fresnel reflected signal. Spatial resolution is improved by a cross-correlation between the transmitted sequence and the received signals.
