一种新的惯性／天文组合导航方法研究

针对传统的惯性／天文组合定位定向法不能有效修正惯性导航系统传感器误差所造成的导航误差，研究了一种新的惯性／天文组合导航方法。利用天文导航系统的量测，在初始对准后估计并补偿加速度计偏置误差，在组合导航过程中闭环修正陀螺漂移误差，进而提高组合导航的姿态、速度及定位精度。仿真结果表明了该方法的有效性，并通过与传统组合方法仿真结果的比较，证明了此方法的优越性。

A Novel Inertial/Celestial Integrated Navigation Method

As the navigation error caused by the sensor error of the inertial navigation cannot be modified by the traditional inertial/celestial integrated navigation system,a novel method which uses the measurements of celestial navigation system to modify the accelerator bias at the end of initial alignment and correct the gyro drift in close-loop during the navigation is proposed.The attitude,velocity and positioning precision are improved by this method.The simulation results show that this method is valid and ef...