三星定位性能分析及其与SINS的融合方法

Performance Analysis of Location with Three Geostationary Satellites and Fusion Method Combined with SINS

针对三星定位技术,本文首先分析其定位算法,并推导其误差分布模型。同时根据输出信息的特点,给出三星定位与SINS(捷联惯性导航系统)进行组合的算法。然后,对三星定位系统的定位误差特性进行仿真试验,从而揭示该系统的误差分布特性。最后,对三星定位/SINS组合系统进行半实时的静态与动态试验,组合结果证明该组合系统定位精度良好,在中纬度区域接近于GPS的精度。

Aiming at the locating technique with three geostationary satellites, the authors analyse its positioning algorithm, and deduce its positioning error distribution model. At the same time, according to the output information characteristic, the integrated algorithm of locating technique with three geostationary satellites combined with SINS （ Strap- down Inertial Navigation System） is given. Afterwards, the positioning error characteristic is simulated and analyzed, thus the error distributing characteristic is exploded. Finally, the static and dynamic experiments of integrated system are carried out which shows that this integrated system has better positioning accuracy, and the precision can match GPS in mid-latitude region.