一种低成本的光纤陀螺信号处理方法  

Low cost signal processing scheme of open loop IFOG

作　　者：邢怀飞[1] 韩绍坤[1] 陈淑芬[1] 

机构地区：[1]北京理工大学信息科学技术学院光电工程系,北京100081

出　　处：《光学技术》2005年第5期790-792,共3页Optical Technique

摘　　要：讨论了一种低成本的干涉型光纤陀螺的信号处理方法。应用了自动相位跟踪技术,重点解决了PZT的稳定性问题,提高了光纤陀螺的精度。在方案中,以正弦波信号作为相位偏置信号,相位解调运用了同步相关检测的方法。方案的优点是其低成本和易于实现,能够满足在一定条件下陆地导航和定位系统的需要。A low cost signal processing of open loop IFOG was described. A phase tracking technique was applied to improve the performance of IFOG. The periodic emendation of the electric components excursion improved the stability of the PZT. A sinusoidal was used as a bias phase modulation wave and the open loop demodulation used the weak signal detection technique. The advantages of this scheme are low cost and easy to realize, and it can satisfy applications to land navigation or position system.

关 键 词：光纤陀螺 压电陶瓷(PZT) 相位解调 锁相放大器 

分 类 号：TN253[电子电信—物理电子学]