计算机工程与应用 ›› 2012, Vol. 48 ›› Issue (9): 242-244.
• 工程与应用 • 上一篇 下一篇
吴 军,常 江,姜 勇
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WU Jun, CHANG Jiang, JIANG Yong
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摘要: 为了增强GPS在亚太地区的导航性能,提出了一种利用GEO和IGSO卫星增强GPS星座的方法。通过仿真分析,研究了该地区在星座增强前后的卫星可见性、PDOP值等方面的变化规律,通过对比导航系统在全球范围内的性能表现,证明这种增强系统在定位精度和可用性方面均有较大提高。
关键词: 全球定位系统, 地球同步轨道, 倾斜地球同步轨道, 位置精度因子, 可用性
Abstract: A method for enhancing the performance of GPS in Asia & Pacific is presented. It adds the GEO(Geostationary Earth Orbit) & IGSO(Inclining Geostationary Synchronized Orbit) satellites to the GPS constellation, and then analyzes the visibility and PDOP in the enhanced area. Compared with the same parameters on a global scale, it is concluded that the positioning accuracy and availability of GPS are increased owing to the enhanced GEO & IGSO satellites.
Key words: Global Positioning System(GPS), Geostationary Earth Orbit(GEO), Inclining Geostationary Synchronized Orbit(IGSO), Position Dilution Of Precision(PDOP), availability
吴 军,常 江,姜 勇. GEO和IGSO卫星增强GPS性能的仿真分析[J]. 计算机工程与应用, 2012, 48(9): 242-244.
WU Jun, CHANG Jiang, JIANG Yong. Simulations and analysis of performance for GPS enhanced by GEO and IGSO[J]. Computer Engineering and Applications, 2012, 48(9): 242-244.
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