一种小型化激光陀螺SINS的温度补偿初步研究

针对小型化激光陀螺捷联惯导系统(SINS),建立了四种不同的温补模型,分析和对比了包含高温、低温和变温三种不同温度模式下的温补效果.试验结果表明:温度变化率是影响惯性器件误差的重要因素,考虑温度和温变率模型的动态模型温补效果明显优于单纯考虑温度的静态模型.另外,为了检验小型化SINS的稳定性以及温补模型与时间的关系,5个月后再一次对其温度特性进行研究,结果表明:SINS稳定性良好,温补模型基本不受时间影响,满足工程应用的需求.

Primary Research on Temperature Compensation of One Miniaturized Laser Gyro SINS

Based on temperature compensation of one miniaturized laser gyro (strap-down inertial navigation system) SINS, four different models of temperature compensation were developed, and the compensation result of three temperature methods were analyzed and compared. The experimental results show that the temperature rate is invisible, and the compensation accuracy of dynamic model considering both temperature and temperature changing rate is better than that of the static model. Moreover, in order to test the stability of the SINS and temperature compensation models, a research was performed again on its temperature characteristic five months later, and the results show that SINS and the model present high stability, and meet the engineering applicaitons.