Abstract
AbstractThe Wide-Lane (WL) and Narrow-Lane (NL) Uncalibrated Phase Delays (UPDs) are the prerequisites in the traditional Precise Point Positioning (PPP) Ambiguity Resolution (AR). As the generation mechanism of various biases becomes more complex, we systematically studied the impact factors of four satellite systems WL and NL UPDs from the perspective of parameter estimation. Approximately 100 stations in a global network are used to generate the UPDs. The results of different satellite systems show that the estimation method, update frequency, and solution mode need to be treated differently. Two regional networks with different receiver types, JAVAD, and Trimble, are also adopted. The results indicate that the receiver-dependent bias has an influence on UPD estimation. Also, the hardware delays can inhibit the satellite-side UPDs if these receiver-specific errors are not fully deployed or even misused. Furthermore, the temporal stability and residual distribution of NL UPDs are significantly enhanced by utilizing a regional network, with the improvements by over 68% and 40%, respectively. It demonstrates that different network scales exhibit the different implication of unmodeled errors, and the unmodeled errors cannot be ignored and must be handled in UPD estimation.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Jiangsu Province
Publisher
Springer Science and Business Media LLC
Subject
Electrical and Electronic Engineering,Aerospace Engineering,Signal Processing
Reference36 articles.
1. Blewitt, G. (1998). GPS data processing methodology: From theory to applications. In P. Teunissen, & A. Kleusberg (Eds.), GPS for geodesy. Berlin: Springer.
2. Blewitt, G. (2008). Fixed point theorems of GPS carrier phase ambiguity resolution and their application to massive network processing: Ambizap. Journal Geophysical Research: Solid Earth, 113(B12), B12410.
3. Collins, P., Lahaye, F., Héroux, P., & Bisnath, S. (2008). Precise point positioning with ambiguity resolution using the decoupled clock model. In Proceedings of ION GNSS 2008, Savannah (pp. 1315–1322).
4. Cui, B., Li, P., Wang, J., Ge, M., & Schuh, H. (2021). Calibrating receiver-type-dependent wide-lane uncalibrated phase delay biases for PPP integer ambiguity resolution. Journal of Geodesy, 95(7), 82.
5. Gabor, M., & Nerem, R. (1999). GPS carrier phase ambiguity resolution using satellite-satellite single differences. In Proceedings of ION GPS 1999, Nashville city (pp. 1569–1578).
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献