机载双轴旋转调制激光惯导系统误差特性及关键技术分析

在未来作战环境下,长航时远程作战飞机对全自主长航时高精度导航系统提出了迫切的需求,对提高作战能力起着重要作用.对比各种导航手段,其中双轴旋转调制激光惯导系统是目前唯一一种可行的全天候全自主高精度导航手段,从双轴旋转调制惯导系统的原理出发,对双轴旋转调制激光惯导系统机载应用的误差特性及关键技术进行深入分析,结果表明:对于1n mile/12h的导航精度,双轴旋转调制惯导系统较捷联惯导系统对陀螺漂移精度要求降低一个数量级,关键技术实现方案合理可行.

Analysis on Error Characteristics and Key Technology of Airborne Double Axis Rotation Modulating RLG INS

In the coming combat circumstance, the long range combat aircraft puts forward urgent requirement to full autonomous, long duration and high accuracy navigation system, which plays an important role in improving the combat capability.Through contrast and analysis, the double axis rotation modulating RLG INS is the only all weather, full autonomous and high accuracy navigation system at present.The paper proceeds from the principle of double axis rotation modulating INS, then, analyses in depth the error characteristics and key technology of airborne double axis rotation modulating RLG INS.The results show that, for navigation accuracy achievement of 1.0n mile per 12hours, the accuracy requirements to RLG drift are deceased one order of magnitudes by using double axis rotation modulating RLG INS comparing with strapdown INS.Furthermore, the implementation scheme of the key technology is reasonable