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从提高导航系统性能出发,阐述了多卫星系统,卫星系统完整性和最佳定位卫星组合的选择等问题,研究了基于伪距、伪距率的SINS/卫星组合导航的模型,并对SINS/GPS/GLONASS/GALILEO/BD组合系统进行了仿真。通过与SINS/GPS组合系统仿真结果对比表明,SINS/多卫星系统组合对导航系统性能具有更好地提升作用,且对于提高导航系统的可靠性、安全性有较大帮助。
In order to improve the performance of navigation system, the problems of multi-satellite system, the integrity of satellite system and the selection of the best positioning satellite combination are described. The SINS / satellite integrated navigation model based on pseudorange and pseudo-range is studied. The SINS / GPS / GLONASS / GALILEO / BD combination system was simulated. Compared with the simulation results of SINS / GPS combined system, it is shown that the combination of SINS / multi-satellite system can improve the performance of navigation system better and is more helpful to improve the reliability and safety of navigation system.