数字调制的谐振式光纤陀螺  

Research on Digital Modulated Resonator Fiber-optic Gyro

作　　者：李如春[1] 马慧莲[2] 

机构地区：[1]浙江工业大学信息学院,浙江杭州310014 [2]浙江大学信息学院,浙江杭州310027

出　　处：《半导体光电》2003年第6期419-421,共3页Semiconductor Optoelectronics

基　　金：国家重点基础研究发展规划项目课题(G1 9990 3 3 1 1 0 )

摘　　要：　谐振式光纤陀螺是利用正反方向传播光波的谐振频差来检测旋转角速率的惯性传感器。由于模拟调制的方法无法达到较高的系统性能,提出了一种数字调制方法,此方法采用两种频率组合的阶梯波作为LiNbO3调制器的控制信号,对其进行数字调制。通过理论的研究和仿真,证明此种方法是切实可行的。A resonator fiber optic gyro is an inertial rotation sensor whose rotation rate can be obtained by measuring the difference of resonant frequency between the lightwaves propagating clockwise and counterclockwise. As the analogue modulation (can't) achieve high performance, a digital modulation is proposed, in which the digital serrodyne signal with two frequencies is used to control the LiNbO_(3) modulator. Performance of this system is analyzed theoretically, and the simulating results are given which s...

关 键 词：谐振式光纤陀螺 数字调制 相位调制器 

分 类 号：TN253[电子电信—物理电子学]