谐振光纤陀螺信号检测的新方法设计和验证  

Design and Verification of a New Signal DetectionMethod for Resonant Fiber-Optic Gyroscope

作　　者：刘莉雯 王沭力 付贵[1] 高杨[2] LIU Liwen;WANG Shuli;FU Gui;GAO Yang(College of Flight Technology,Civil Aviation Flight University of China,Guanghan 618000,China;School of Information Engineering,Southwest University of Science and Technology,Mianyang 621000,China)

机构地区：[1]中国民用航空飞行学院飞行技术学院,四川广汉618000 [2]西南科技大学信息工程学院,四川绵阳621000

出　　处：《电光与控制》2023年第5期89-92,共4页Electronics Optics & Control

摘　　要：主要对谐振式光纤陀螺单侧信号检测方法开展了研究,探讨了热致偏振噪声对于谐振曲线产生的影响,并设计了一种信号检测方法。针对该检测方法与传统检测方法的应用效果进行对比分析,研究结果显示,新方法会抑制偏振噪声对于陀螺精度的影响。根据仿真结果可知,在温度改变0.003℃的情况下,得到的归一化幅值误差显著减小,由原先的0.230 8变为0.029 8,继而验证了设计单侧检测方法的有效性,该方法有效抑制了偏振波动噪声对于检测精度的不利影响,提高了检测结果的准确性。This paper mainly studies the unilateral signal detection method for resonant fiber-optic gyroscope,discusses the influence of thermally induced polarization noise on the resonance curve,and designs a signal detection method.The application effects of this detection method and traditional detection method are compared and analyzed,and the research results show that the proposed method shall suppress the influence of polarization noise on gyro accuracy.According to the simulation results,when the temperature changes by 0.003℃,the normalized amplitude error is significantly decreased from 0.2308 to 0.0298,thus verifies the effectiveness of the designed unilateral detection method,which effectively suppresses the adverse impact of polarization fluctuation noise on detection accuracy and improves the accuracy of detection results.

关 键 词：谐振式光纤陀螺 信号检测 光纤环形谐振腔 偏振波动噪声 

分 类 号：TH824.3[机械工程—仪器科学与技术] TN253[机械工程—精密仪器及机械]