光纤光栅传感系统模型及其关联解调理论  

Fiber Grating Sensing System Model and Correlation Demodulation Theory

作　　者：张伟刚[1] 董孝义[1] 

机构地区：[1]南开大学现代光学研究所,天津300071

出　　处：《光电子．激光》2003年第9期939-944,共6页Journal of Optoelectronics·Laser

基　　金：国家"863"计划基金资助项目(2002AA313110);国家自然科学基金资助项目(60077012);南开大学人事处科研启动基金资助项目

摘　　要：提出了光纤光栅传感系统的反射式与透射式物理模型,阐述了其运作机制。引进关联概念,定义了信号关联函数,初步建立了光纤光栅传感系统的关联解调理论。根据该关联解调理论,提出了解调系统的新式分类方法,进而分析、阐述了线性解调、类δ解调和干涉解调3类典型的关联解调系统。The reflection model and the transmission model of a fiber grating sensing system were proposed and its operation mechanism was expounded. The correlation concept is introduced, the signal correlation function was defined and the correlation demodulation theory of the fiber grating sensing system was basically established. Using the new method, the three typical correlation demodulation systems such as the linear demodulation, the quasi δ demodulation and the interference demodulation, have been analyzed and expatiated.

关 键 词：光纤光栅 传感系统 关联解调 信号关联函数 线性解调 类δ解调 干涉解调 

分 类 号：TN253[电子电信—物理电子学] TN763