激光陀螺全数字抖动控制方法研究

Digital Dither Control Method for Ring Laser Gyroscope

针对传统机抖激光陀螺模拟偏频系统体积大、难于控制的缺点,设计了一种基于FPGA的全数字抖动控制方案,提出了数字抖动控制原理,分析了数字方波驱动信号的性能,实现了伪随机噪声的生成和注入。仿真和实际应用说明该方案满足激光陀螺对抖动系统的要求。

To overcome the bulky , inflexibility of traditional analog dither system, a new solution for ring laser gyroscope（RLG） was designed with field programmable gate array（FPGA）. The digital dither control method was given and dither characteristics were analyzed by square wave driving signals. The nonlinear random noise generation and infusion were realized. The simulation and practical use prove that the digital method can meet the requirement of the dither system for the RLG.