Algorithm of multi-epoch trajectory determination

Author

Cao Xiao ; Li Yaping ; Zhang Shuangna ; Wang Hongwei

Author_Institution

Satellite Navig. Dept., Space Star Technol. Co. Ltd., Beijing, China

fYear

2013

fDate

20-22 Dec. 2013

Firstpage

2825

Lastpage

2828

Abstract

GPS is the most used navigation system in today´s transportation world. However the performance of GPS decreases in mountains, valleys, urban canyons, where it is not always possible to track enough satellites to calculate the 3-D position. This paper outlines a new method to improve the performance of GPS positioning service, especially for fixed-route transport (train or bus). The algorithm of multi-epoch trajectory determination (METD) is based on multi-epoch observations with Least Squares Adjustment (LSA) to track the trajectory of the moving object. The result is satisfactory, even when the current visible satellites are insufficient.

Keywords

Global Positioning System; least squares approximations; object tracking; traffic engineering computing; transportation; 3D position calculation; GPS performance; GPS positioning service; LSA; METD; bus; fixed-route transport; least squares adjustment; mountains; moving object trajectory tracking; multiepoch observation; multiepoch trajectory determination algorithm; navigation system; satellites; train; transportation; urban canyons; valleys; Availability; Curve fitting; Equations; Global Positioning System; Mathematical model; Monitoring; Trajectory; GPS positioning; motion constraints; multi-epoch trajectory determination;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronic Sciences, Electric Engineering and Computer (MEC), Proceedings 2013 International Conference on

Conference_Location

Shengyang

Print_ISBN

978-1-4799-2564-3

Type

conf

DOI

10.1109/MEC.2013.6885511

Filename

6885511