SUN Yao, JIA Bo, ZHANG Tian-zhao. Position determination sensing system based on all-fiber interferometer with feedback loop[J]. 2006, (1): 44-46. DOI: 10.13873/j.1000-97872006.01.016.
基于反馈环全光纤干涉的定位系统
摘要
提出了一种用于长距离定位监测的新型传感系统。该系统在全光纤干涉系统中构建反馈环
首次采用单芯光纤作为传感光纤
结合快速傅里叶变换和小波变换对信号进行处理
实现了对随机扰动源的监测定位。实验获得了清晰的频谱图像
系统定位的相对误差小于0.08%
可实现定位监测功能。
Abstract
A novel sensing system of locating and monitoring ordinary disturbance signals in long distances is proposed.A feedback loop is constructed within all-fiber interferometer and single fiber is firstly employed as the sensing fiber
and by using fast Fourier transforming and wavelet transforming as the method of processing signal
the position of a random signal is successfully determined.By fulfilling the experiment
some very good frequency spectrum images are obtained
and the system’s relative error is below 0.08 %
so its function of locating and monitoring can be realized.