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Improvement of Single-Frequency GPS Positioning Performance Based on EGNOS Corrections in Algeria
The Journal of Navigation ( IF 2.4 ) Pub Date : 2020-01-17 , DOI: 10.1017/s037346331900095x
Lahouaria Tabti , Salem Kahlouche , Belkacem Benadda , Bilal Beldjilali

The main objective of the European Geostationary Navigation Overlay System (EGNOS) is to improve the positioning accuracy by correcting several error sources affecting the Global Positioning System (GPS) and to provide integrity information to GPS signals for users in real time. This research presents analysis used to investigate improvement in the performance of single-frequency GPS positioning using EGNOS corrections in Algeria. In this study, we performed position measurements with two calculation approaches, the first based on GPS single-point positioning and the second using EGNOS differential corrections. Positioning accuracy was determined by comparison with the known precise coordinates of the sites; and then the improved ionospheric correction using EGNOS was investigated. The results revealed that GPS + EGNOS performance was significantly improved compared with GPS alone, when measurements of horizontal and vertical accuracy were taken into account, and that the EGNOS corrections improved east and north components slightly, and the up component significantly.

中文翻译:

阿尔及利亚基于EGNOS校正的单频GPS定位性能改进

欧洲地球同步导航覆盖系统 (EGNOS) 的主要目标是通过纠正影响全球定位系统 (GPS) 的多个误差源来提高定位精度,并为用户实时提供 GPS 信号的完整性信息。本研究提出了用于调查在阿尔及利亚使用 EGNOS 校正提高单频 GPS 定位性能的分析。在本研究中,我们使用两种计算方法进行位置测量,第一种基于 GPS 单点定位,第二种使用 EGNOS 差分校正。定位精度是通过与站点的已知精确坐标进行比较来确定的;然后研究了使用EGNOS改进的电离层校正。
更新日期:2020-01-17
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