A Multi-Epoch Processing Strategy for PPP-RTK Users

Conference paper (2023)

Authors

Amir Khodabandeh University of Melbourne
PJG Teunissen Mathematical Geodesy and Positioning - CEG , University of Melbourne, Curtin University
P.J.G. Teunissen Mathematical Geodesy and Positioning - CEG , University of Melbourne, Curtin University
D.V. Psychas European Space Agency (ESA)
Research Group
Mathematical Geodesy and Positioning (CEG) (TU Delft)
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Published Date

2023

Language

English

Faculty

Civil Engineering & Geosciences

Department

Geoscience and Remote Sensing

Research Group

Mathematical Geodesy and Positioning

Abstract

The present contribution aims to address why the stochastic model of the PPP-RTK user-filter is misspecified, and how one can limit the precision-loss associated with user parameter solutions. By developing tools for measuring the stated precision-loss under existing formulations of the user’s Kalman filter, we propose an alternative formulation that recursively delivers close-to-minimum-variance filtered solutions when certain conditions hold. Such conditions are discussed, and their impact on the user ambiguity-resolved positioning performance is illustrated by supporting numerical results.