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温度是影响激光陀螺输出漂移的主要因素之一。在高精度的激光捷联惯导系统中,建立激光陀螺的温度误差模型具有十分重要的意义。在大量实验的基础上,研究了激光陀螺在不同环境温度下的漂移特性,提出了一种将静态温度模型与动态温度模型分开建模的方法。环境适应性实验验证该方法建立的温度补偿模型对于缓变温度环境与快速温变环境均适用。最后通过实际导航实验验证了该模型具有工程实用性。
Temperature is one of the main factors that affect the output drift of laser gyro. In high-precision laser strapdown inertial navigation system, the establishment of laser gyro temperature error model is of great significance. Based on a large number of experiments, the drift characteristics of laser gyroscope at different ambient temperatures are studied and a method of modeling the static temperature model separately from the dynamic temperature model is proposed. Environmental Adaptability Experimental Validation The temperature compensation model established by this method is suitable for both slowly changing temperature environment and rapid temperature changing environment. Finally, the actual navigation experiment shows that the model has engineering practicability.