CAJ | 학술논문

针对 BDS 不同于 GPS 卫星星座的特点，论述了不同 BDS 卫星对系统导航定位性能的贡献及影响程度，结合GPS 和 BDS 卫星的特点分析了星座分布对定位精度、系统可靠性及对故障的抗差能力强弱的影响。通过仿真实验分析对比了中国境内某点处 GPS、BDS 以及两者的组合系统的导航精度、系统可靠性及对故障的可区分能力的强弱，侧重分析了组合系统相较于单系统而言在抗差性及对故障的可区分性方面的改进效果。
침대 BDS 불동우 GPS 위성성좌적특점，논술료불동 BDS 위성대계통도항정위성능적공헌급영향정도，결합GPS 화 BDS 위성적특점분석료성좌분포대정위정도、계통가고성급대고장적항차능력강약적영향。통과방진실험분석대비료중국경내모점처 GPS、BDS 이급량자적조합계통적도항정도、계통가고성급대고장적가구분능력적강약，측중분석료조합계통상교우단계통이언재항차성급대고장적가구분성방면적개진효과。
Since the characteristic of BeiDou Satellite Navigation System (BDS)is different from Global Positioning System (GPS),we discussed the contribution of BDS satellites constellation to the system’s navigation performance,as well as the performance of GPS/BDS integrated system was analyzed,in terms of positioning accuracy,system reliability and integri-ty.Based on the simulation results,the positioning accuracy,system reliability and separability are compared among GPS, BDS and GPS/BDS integrated system.Most importantly,the performance improvement on fault detection and identification of GPS/BDS integrated system are analyzed,compared with GPS and BDS standalone systems.