干涉型光纤传感器相位生成载波解调方法改进与研究  

The Improvement on PGC Demodulation Method Based on Optical Fiber Interferometer Sensors

作　　者：柏林厚[1] 廖延彪[1] 张敏[1] 赖淑蓉[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《光子学报》2005年第9期1324-1327,共4页Acta Photonica Sinica

摘　　要：提出了基于干涉型光纤传感器的相位生成载波解调方法(PGC)的改进方法,通过算法上的改进和增加抗混叠滤波器,有效地改善了解调结果,并大大降低了系统的采样频率,结论对设计干涉型光纤传感器解调系统有重要的参考意义.An improved phase generated carrier （PGC） demodulation method based on optical fiber interferometer sensors was brought forward. Through improvement on the PGC algorithm and adding frequency overlapped-resistable filter to the system, the result of the demodulation system has been great improved. At the same time, the sample rate of the system has get great reduced. The conclusion is very useful in designing the demodulation systems based on optical fiber interferometer sensors.

关 键 词：干涉型光纤传感器 相位生成载波(PGC) 最低采样频率 抗混叠滤波器 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]