空基导航区域增强系统覆盖范围分析
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摘要
针对现有卫星导航信号抗干扰手段存在的不足,分析提出了卫星导航信号区域增强是提高GNSS接收机在复杂干扰环境下抗干扰能力的有效手段,对卫星导航区域增强系统的覆盖范围进行了深入的分析和研究,得到系统四星典型布局覆盖范围与伪卫星高度之间的关系,提出了采取主伪卫星体制和小区域级联体制提升覆盖范围的方法,能够在不明显增加系统复杂度的条件下大幅度地提升区域增强系统的覆盖范围。
Considering the disadvantages of the existing satellite navigation signal anti-jamming means,GNSS satellite navigation signal regional enhancement is proposed as an effective means to improve the anti-jamming capability of GNSS receivers in complex interference environment. The system's coverage is analyzed and studied. The relationship between the typical four-satellite coverage and the height of pseudolite is obtained,and the coverage improving method by implementing main-pseudolite system and small regional connecting system is presented,which can greatly improve the coverage of regional enhancement system without obviously increasing the complexity of the system.
Considering the disadvantages of the existing satellite navigation signal anti-jamming means,GNSS satellite navigation signal regional enhancement is proposed as an effective means to improve the anti-jamming capability of GNSS receivers in complex interference environment. The system's coverage is analyzed and studied. The relationship between the typical four-satellite coverage and the height of pseudolite is obtained,and the coverage improving method by implementing main-pseudolite system and small regional connecting system is presented,which can greatly improve the coverage of regional enhancement system without obviously increasing the complexity of the system.
引文
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[6]王晖辉.伪卫星增强GPS定位技术及现状分析[J].测绘科学,2009(5):89-93.
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