Simulations and analysis of performance for GPS enhanced by GEO and IGSO

Computer Engineering and Applications ›› 2012, Vol. 48 ›› Issue (9): 242-244.

• 工程与应用 • Previous Articles Next Articles

Simulations and analysis of performance for GPS enhanced by GEO and IGSO

WU Jun, CHANG Jiang, JIANG Yong

School of Communications Engineering, PLA University of Science & Technology, Nanjing 210007, China

Received:1900-01-01 Revised:1900-01-01 Online:2012-03-21 Published:2012-04-11

GEO和IGSO卫星增强GPS性能的仿真分析

吴军，常江，姜勇

解放军理工大学通信工程学院，南京 210007

Abstract

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

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

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.

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.

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Simulations and analysis of performance for GPS enhanced by GEO and IGSO

GEO和IGSO卫星增强GPS性能的仿真分析

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