中文摘要：

提出了卫星／捷联星光／捷联惯导组合导航系统的方案和组合结构，采用改进的集中滤波对多传感器信息进行数据融合和导航状态的最优估计．该组合导航系统将捷联星光跟踪仪的姿态信息、高动态GPS的位置、速度信息与捷联惯导进行组合滤波，全面提高导航的姿态、速度和位置精度．同时该组合导航系统以弹道导弹为应用对象，设计并实现了基于弹道导弹的GPSISST/SINS组合导航系统实时仿真平台，仿真结果表明该组合导航系统能提高导弹的导航精度，滤波算法稳定可靠．

英文摘要：

An integrated navigation system of GPS/SST/SINS is presented in this paper. This system uses an improved centralized Kalman filter to perform data fusion between the multi-sensor outputs and estimate the optimal navigation result. In this system the attitude of the strapdown star tracker （ SST）, the position and velocity of GPS, and the correspondence information of SINS are filtered to improve navigation precision of attitude, velocity and position. The system is then used in a ballistic missile model to implement a simulated platform of GPS/SST/SINS integrated navigation. The result shows that the system can effectively enhance navigation precision and the filter is stable and reliable.