基于CDMA技术的FBG传感系统研究  

Research of FBG sensing system based on CDMA technology

作　　者：陈韩彬 张志勇[1] 吴宗玲[1] 李宗雷[1] 朱梦芳 邵理阳[1] 

机构地区：[1]西南交通大学信息科学与技术学院,四川成都610031

出　　处：《传感器与微系统》2016年第1期59-61,共3页Transducer and Microsystem Technologies

基　　金：教育部重大项目(313049)

摘　　要：基于码分多址(CDMA)技术,采用格雷互补序列对光源进行调制,使用相关运算对接收信号进行解调。该方法具有传感器间串音小和系统信噪比高等优点。基于该方法搭建了光纤Bragg光栅(FBG)传感实验平台,对其温度传感特性进行了实验研究。结果表明:系统具有温度响应线性度好和串音低的优点。Based on code division muhiple access （CDMA）technique, demodulate light source utilizing Golay complementary sequences, and demodulate receiving signal using correlation operation. This method has advantages of low inter-sensor crosstalk and high signal to noise ratio（SNR）. The temperature sensing characteristic of fiber Bragg grating（FBG） is further researched by experiments on experimental platform constructed based on method. The experimental results show that the linearity of temperature response is good and the system has low crosstalk.

关 键 词：光纤BRAGG光栅传感器 格雷互补序列 码分多址 相关运算 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]