机抖激光陀螺短期闭锁误差积累特性分析  

Analysis of Short-term Lock-in Error Accumulation in Dither Ring Laser Gyroscope

作　　者：江明明[1] 胡德文[1] 张岩[1] 范竹荣[1] 

机构地区：[1]国防科学技术大学机电工程与自动化学院,湖南长沙410073

出　　处：《压电与声光》2010年第6期960-964,共5页Piezoelectrics & Acoustooptics

摘　　要：根据闭锁方程和抖动动力学特性建立了机抖激光陀螺的仿真模型,结合激光陀螺过锁区的闭锁误差理论模型,采取仿真和实验方法研究了闭锁误差对抖幅的跟踪特性和趋稳特性,针对抖动随机响应特点,论证了实施短期闭锁误差控制的必要性和可行性。A dither ring laser gyro（DRLG） simulation model is performed basing on DRLG＇s lock-in equation and dither kinetics model.Regarding to theoretical model of DRLG＇s crossing lock-in,two fixed patterns of lock-in error accumulating,stabilizing pattern and tracing pattern,are validated by simulation and experiment.The essentiality and feasibility of instantaneous lock-in error contol are demonstrated on purpose of meeting random dither response.

关 键 词：激光陀螺 闭锁误差 误差分析 

分 类 号：U666.1[交通运输工程—船舶及航道工程]