Performance evaluation of GPS/Galileo fractional cycle bias products and PPP ambiguity resolution

ABSTRACT

To compare and evaluate the performance of different multi-GNSS fractional cycle biases (FCBs) products and precise point positioning (PPP) ambiguity resolution. We compare the stability and positioning performance of the School of Geodesy and Geomatics (SGG) and CNES GPS\Galileo FCBs products. The results show that similar stability and high consistency are observed between the two products, the difference of PPP ambiguity resolution bias between them is in the level of millimetre. And it is found that the epoch-interval of narrow-lane FCBs can be enlarged from 15 min to 30-180 min, to ease the transmission pressure on the transmission link.

KEYWORDS:

• Fractional cycle bias
• precise point positioning
• ambiguity resolution
• wide-lane Narrow-lane

Acknowledgments

The authors want to thank the editors and anonymous reviewers for their hard work and important suggestions. The authors are grateful to IGS, GFZ and CNES for providing GNSS data and products. Thanks also goes to Prof. ZHANG Xiaohong and Dr Li Pan from SGG-WHU for FCB products.

Disclosure statement

No potential conflict of interest was reported by the authors.

Supplementary material

Supplemental data for this article can be accessed here.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [grant number 42074010, 41904039].