低成本无源北斗／INS组合导航系统研究

北斗双星定位系统(RDSS)采用有源定位体制存在一定的局限性,采用三星无源定位体制可以克服双星导航定位系统用户位置容易暴露和系统用户数量容易饱和两大缺点.同时,提出了无源北斗/惯导组合导航系统方案.仿真结果表明,组合系统可有效提高系统定位精度,降低对惯导精度的要求,从而降低整个组合导航系统的成本.

The Study on Low Cost Passive-BD/INS Integration Navigation System

To avoid the limitation of the Bei-Dou Double Star Navigation System, one navigation system made up of three earth synchronous satellites based on Double Star Navigation system is used, which can overcome two major shortcomings that the location of the user easily exposed and the number of system users easily saturated. Meanwhile, a BD passive positioning system and INS integrated navigation system is proposed. The simulation results show that integrated navigation system can effectively improve the system position accuracy and reduce the requirements for the accuracy of INS, thereby which reduces the overall cost of the integrated navigation system.