Journal article

Integer estimability in GNSS networks

A Khodabandeh, PJG Teunissen

Journal of Geodesy | Springer | Published : 2019


Estimability and S-systems are important concepts when dealing with rank-defect models. In this contribution, we generalize the concept of estimability to integer estimability and determine the necessary and sufficient conditions that need to be satisfied for parameter functions to be integer estimable. This is then worked out and applied to the integer estimability analysis of GNSS observation equations. We hereby consider both network ambiguity resolution and single-receiver PPP-RTK ambiguity resolution. In our analyses, use is made of graph theory and properties of the ambiguity incidence matrices of the bipartite and connected network graphs.

University of Melbourne Researchers


Awarded by Australian Research Council (ARC) Federation Fellowship

Funding Acknowledgements

The second author is the recipient of an Australian Research Council (ARC) Federation Fellowship (Project Number FF0883188). This support is gratefully acknowledged.