传感技术学报2018，Vol.31Issue(1)：1-5,5.DOI:10.3969/j.issn.1004-1699.2018.01.001
一种应用于谐振式光纤陀螺的数字双相位
锁相放大器的设计
A Design of Digital Dual-Phase Lock-in Amplifier Applied to Resonator Fiber Optic Gyro
张焱 1唐杰 2赵宁 1张彤2
作者信息
- 1. 东南大学仪器科学与工程学院,南京210096
- 2. 东南大学苏州研究院苏州金属纳米光电技术重点实验室,江苏 苏州215123
- 折叠
摘要
Abstract
According to the feature of the weak difference frequency signal of the output of resonator fiber optic gyro,a digital dual-phase lock-in amplifier ( LIA) is proposed to detect the angular velocity signal caused by the Sagnac effect,which needn't do a phase adjustment for the reference signal,improve the system signal-to-noise ratio and realize the weak signal detection. The LIA is realized by using digital circuit method and integrated into the Field-Programmable Gate Array( FPGA) ,which is beneficial to the miniaturization of the gyro system.关键词
FPGA/谐振式光纤陀螺/双相位锁相放大器/微弱信号检测Key words
FPGA/Resonator fiber optic gyro/dual-phase LIA/weak signal detection分类
信息技术与安全科学引用本文复制引用
张焱,唐杰,赵宁,张彤..一种应用于谐振式光纤陀螺的数字双相位
锁相放大器的设计[J].传感技术学报,2018,31(1):1-5,5.
