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GNSS satellite-based augmentation systems for Australia

journal contribution
posted on 2024-11-02, 02:53 authored by Suelynn ChoySuelynn Choy, Joost Kuckartz, Andrew Dempster, Chris Rizos, Matt Higgins
We provided an overview of various satellite-based augmentation systems (SBAS) options for augmented GNSS services in Australia, and potentially New Zealand, with the aim to tease out key similarities and differences in their augmentation capabilities. SBAS can technically be classified into two user categories, namely SBAS for aviation and "non-aviation" SBAS. Aviation SBAS is an International Civil Aviation Organization (ICAO) certified civil aviation safety-critical system providing wide-area GNSS augmentation by broadcasting augmentation information using geostationary satellites. The primary aim was to improve integrity, availability and accuracy of basic GNSS signals for aircraft navigation. On the other hand, "non-aviation" SBAS support numerous GNSS applications using positioning techniques such as wide-area differential-GNSS (DGNSS) and precise point positioning (PPP). These services mainly focus on delivering high-accuracy positioning solutions and guaranteed levels of availability, and integrity remains secondary considerations. Next-generation GNSS satellites capable of transmitting augmentation signals in the L1, L5 and L6 frequency bands will also be explored. These augmentation signals have the data capacity to deliver a range of augmentation services such as SBAS, wide-area DGNSS and PPP, to meet the demands of various industry sectors. In addition, there are well-developed plans to put in place next-generation dual-frequency multi-constellation SBAS for aviation. Multi-constellation GNSS increases robustness against potential degradation of core satellite constellations and extends the service coverage area. It is expected that next-generation SBAS and GNSS will improve accuracy, integrity, availability and continuity of GNSS performance.

History

Journal

GPS Solutions

Volume

21

Issue

3

Start page

835

End page

848

Total pages

14

Publisher

Springer

Place published

Germany

Language

English

Copyright

© Springer-Verlag Berlin Heidelberg 2016

Former Identifier

2006073297

Esploro creation date

2020-06-22

Fedora creation date

2019-01-31

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