Triple-Frequency GPS Precise Point Positioning Ambiguity Resolution Using Dual-Frequency Based IGS Precise Clock Products
Joint Authors
Source
International Journal of Aerospace Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-21
Country of Publication
Egypt
No. of Pages
11
Abstract EN
With the availability of the third civil signal in the Global Positioning System, triple-frequency Precise Point Positioning ambiguity resolution methods have drawn increasing attention due to significantly reduced convergence time.
However, the corresponding triple-frequency based precise clock products are not widely available and adopted by applications.
Currently, most precise products are generated based on ionosphere-free combination of dual-frequency L1/L2 signals, which however are not consistent with the triple-frequency ionosphere-free carrier-phase measurements, resulting in inaccurate positioning and unstable float ambiguities.
In this study, a GPS triple-frequency PPP ambiguity resolution method is developed using the widely used dual-frequency based clock products.
In this method, the interfrequency clock biases between the triple-frequency and dual-frequency ionosphere-free carrier-phase measurements are first estimated and then applied to triple-frequency ionosphere-free carrier-phase measurements to obtain stable float ambiguities.
After this, the wide-lane L2/L5 and wide-lane L1/L2 integer property of ambiguities are recovered by estimating the satellite fractional cycle biases.
A test using a sparse network is conducted to verify the effectiveness of the method.
The results show that the ambiguity resolution can be achieved in minutes even tens of seconds and the positioning accuracy is in decimeter level.
American Psychological Association (APA)
Liu, Fei& Gao, Yang. 2017. Triple-Frequency GPS Precise Point Positioning Ambiguity Resolution Using Dual-Frequency Based IGS Precise Clock Products. International Journal of Aerospace Engineering،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1158169
Modern Language Association (MLA)
Liu, Fei& Gao, Yang. Triple-Frequency GPS Precise Point Positioning Ambiguity Resolution Using Dual-Frequency Based IGS Precise Clock Products. International Journal of Aerospace Engineering No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1158169
American Medical Association (AMA)
Liu, Fei& Gao, Yang. Triple-Frequency GPS Precise Point Positioning Ambiguity Resolution Using Dual-Frequency Based IGS Precise Clock Products. International Journal of Aerospace Engineering. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1158169
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1158169