为降低单轴旋转惯导输出的振荡误差,提高系统精度,在单轴旋转惯导中引入了阻尼网络。采用时间步距仿真技术,建立了基于Simulink的动基座单轴旋转阻尼惯导仿真模型,并分别对无阻尼和水平阻尼情况下,常值漂移和随机漂移对单轴旋转惯导系统的影响进行了仿真分析。结果表明,在单轴旋转惯导中引入阻尼网络能够消除系统舒拉周期振荡误差和傅科周期振荡误差,抑制随机漂移的影响,大大提高了单轴旋转惯导系统的输出精度。

The precision of single-axial rotation of INS was improved by introducing the damp network. The simulation model of single-axial rotation of damping INS based on Simulink was built by use of the time-stepping simulation techniques. The different error characteristics in different conditions were analyzed. The results show that by introducing the damp network, the Schuler oscillation error and the Foucault oscillation error were eliminated, the random drift was suppressed, and the precision of the single-axial rotation of INS was greatly enhanced.