The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Integer Ambiguity Resolution on Undifferenced GPS Phase Measurements and Its Application to PPP and Satellite Precise Orbit Determination
Abstract
Integer ambiguity fixing is routinely applied to double-differenced GPS phase measurements to achieve precise positioning. Double-differencing is interesting because it removes most of the common errors between the different signal paths. However, if common errors can be estimated it becomes attractive to fix integer ambiguities on undifferenced measurements. Phase measurements then become pseudorange-like measurements with a noise level of a few millimeters. This paper introduces a new method for fixing dual-frequency GPS ambiguities on undifferenced phase measurements either locally or globally. The clocks for the GPS constellation obtained during this process can be used for precise point positioning of ground based receivers and for precise orbit determination of low Earth orbiting satellites. The resulting positioning precision is comparable to that of standard differential positioning without the need for a reference station. Ambiguity-fixed satellite orbits for the GRACE and Jason satellites are more precise than the most precise solution available today.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
The International Laser Ranging Service
Pearlman, M. R., Degnan, J. J., & Bosworth, J. M. (2002) · Advances in Space Research · doi:10.1016/s0273-1177(02)00277-6 · Cited by 813
The International GPS Service: Celebrating the 10th anniversary and looking to the next decade
Dow, J. M., Neilan, R. E., & Gendt, G. (2005) · Advances in Space Research · doi:10.1016/j.asr.2005.05.125 · Cited by 292
Isolating and Estimating Undifferenced GPS Integer Ambiguities
COLLINS, P. D. (2008) · Cited by 139
Precise Relative Positioning of Formation Flying Spacecraft using GPS
Kroes, R. (2006) · Publications on geodesy. New series · doi:10.54419/fuvox5 · Cited by 125
Cited by
GipsyX/RTGx, a new tool set for space geodetic operations and research
Bertiger, W., Bar-Sever, Y., Dorsey, A., Haines, B., Harvey, N., Hemberger, D., Heflin, M., Lu, W., Miller, M., Moore, A. W., et al. (2020) · Advances in Space Research · doi:10.1016/j.asr.2020.04.015 · Cited by 406
Undifferenced GPS Ambiguity Resolution Using the Decoupled Clock Model and Ambiguity Datum Fixing
COLLINS, P., BISNATH, S., LAHAYE, F., & HÉROUX, P. (2010) · Navigation · doi:10.1002/j.2161-4296.2010.tb01772.x · Cited by 324
Marques, H. A., Marques, H. A. S., Aquino, M., Veettil, S. V., & Monico, J. F. G. (2018) · Journal of Space Weather and Space Climate · doi:10.1051/swsc/2017043 · Cited by 61
“…mode, which has been the motivation for several investigations in recent years, as for example in Ge et al. (2005); Collins & Bisnath (2008); Laurichesse et al. (2009); Geng et al. (2010); Teunissen & Khodabandeh (2015).*Corresponding author: haroldoh2o@gmail.com This is an Open Access…”
BackgroundGNSS rapid precise point positioning enhanced by low Earth orbit satellites
Hong, J., Tu, R., Zhang, P., Zhang, R., Han, J., Fan, L., Wang, S., & Lu, X. (2023) · Satellite Navigation · doi:10.1186/s43020-023-00100-x · Cited by 49
Precise Orbit Determination of LEO Satellites Based on Undifferenced GNSS Observations
Allahvirdi-Zadeh, A., Wang, K., & El-Mowafy, A. (2022) · Journal of Surveying Engineering · doi:10.1061/(asce)su.1943-5428.0000382 · Cited by 45
Metadata
- Authors
- LAURICHESSE, D., MERCIER, F., BERTHIAS, J.-P., BROCA, P., & CERRI, L.
- Venue
- Navigation
- Publisher
- Institute of Navigation
- Published
- 2009-06
- Volume
- 56
- Issue
- 2
- Pages
- 135-149
- ISSN
- 0028-1522 (ISSN-L)
- OpenAlex
- W2091247042
- Cited by
- 607
- References
- 4
- FWCI
- 25.19
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Integer Ambiguity Resolution on Undifferenced GPS Phase Measurements and Its Application to PPP and Satellite Precise Orbit Determination. https://app.cochat.ai/papers/10.1002/j.2161-4296.2009.tb01750.x
- The paper
- LAURICHESSE, D., MERCIER, F., BERTHIAS, J.-P., BROCA, P., & CERRI, L. (2009). Integer Ambiguity Resolution on Undifferenced GPS Phase Measurements and Its Application to PPP and Satellite Precise Orbit Determination. Navigation. https://doi.org/10.1002/j.2161-4296.2009.tb01750.x
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
