On the potential of receiver clock modeling in kinematic precise point positioning

authored by: Thomas Krawinkel, Steffen Schön
Abstract: GNSS typically suffer from reduced precision of the height component due to the pseudo-range concept. Thanks to advances in clock technology it has bee shown that a physically meaningful modeling of the receiver clock behavior rather than an epoch-by-epoch estimation can significantly improve code-based navigation. In this contribution, a simulation study is carried out in order to investigate the benefits of receiver clock modeling (RCM) in kinematic precise point positioning (PPP) using a passive hydrogen maser (PHM). As a result, the precision of the vertical coordinate and velocity estimates is improved by approximately 70%. Furthermore, internal and external reliability are enhanced, thus the estimation process becomes more robust against observation outliers. However, in the current implementation the estimated real-valued ambiguity and troposphere parameters are not affected by clock modeling in the simulation study. The theoretical considerations are then expanded to a practical application. Thus, preliminary results of a real kinematic experiment using a passive hydrogen maser are presented and discussed. The corresponding results are very close to those of the simulation study, i.e. they confirm the potential of receiver clock modeling in kinematic PPP, highlighting the representativity of the simulated scenarios.
Organisation(s): Institute of Geodesy
Type: Conference contribution
Pages: 3897-3908
No. of pages: 12
Publication date: 2018
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Computer Science Applications, Software, Electrical and Electronic Engineering
Electronic version(s): https://doi.org/10.33012/2018.16039 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{3632d2f473364732a99d7353fe96f424,
title = "On the potential of receiver clock modeling in kinematic precise point positioning",
abstract = "GNSS typically suffer from reduced precision of the height component due to the pseudo-range concept. Thanks to advances in clock technology it has bee shown that a physically meaningful modeling of the receiver clock behavior rather than an epoch-by-epoch estimation can significantly improve code-based navigation. In this contribution, a simulation study is carried out in order to investigate the benefits of receiver clock modeling (RCM) in kinematic precise point positioning (PPP) using a passive hydrogen maser (PHM). As a result, the precision of the vertical coordinate and velocity estimates is improved by approximately 70%. Furthermore, internal and external reliability are enhanced, thus the estimation process becomes more robust against observation outliers. However, in the current implementation the estimated real-valued ambiguity and troposphere parameters are not affected by clock modeling in the simulation study. The theoretical considerations are then expanded to a practical application. Thus, preliminary results of a real kinematic experiment using a passive hydrogen maser are presented and discussed. The corresponding results are very close to those of the simulation study, i.e. they confirm the potential of receiver clock modeling in kinematic PPP, highlighting the representativity of the simulated scenarios.",
author = "Thomas Krawinkel and Steffen Sch{\"o}n",
note = "Funding Information: The authors thank IGS, CODE and ESOC for their free to use GNSS products which were a valuable contribution to our case study. We also would like to thank Dr. Andreas Bauch and his team from PTB for their support during the kinematic experiment. This work was funded by the Federal Ministry of Economics and Technology of Germany, following a resolution of the German Bundestag (project number: 50NA1321). Publisher Copyright: {\textcopyright} 2018 Institute of Navigation. All rights reserved. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.; 31st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2018 ; Conference date: 24-09-2018 Through 28-09-2018",
year = "2018",
doi = "10.33012/2018.16039",
language = "English",
pages = "3897--3908",
booktitle = "Proceedings of the 31st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2018",
publisher = "Institute of Navigation",
}