First combined COMPASS/BeiDou-2 and GPS positioning results in Australia. Part II: Single- and multiple-frequency single-baseline RTK positioning

Abstract

Australia is a beneficiary of the current regional BeiDou configuration, as enough satellites are available for Positioning, Navigation and Timing (PNT). The present contribution is Part II out of two parts that consider first combined BeiDou+GPS results in Australia. In Part I we analysed the code-only single-receiver and relative point positioning performance. In this Part II we will evaluate the single- and multiple-frequency single-baseline RTK model. The performance is evaluated by ambiguity success-rates and by comparing the estimated positions to very precise benchmark coordinates. It will be shown that the increased strength of the combined model allows for improved ambiguity resolution performance and positioning robustness over the BeiDou- and GPS-only solutions.

Keywords::

• GNSS
• BeiDou
• GPS
• Positioning, Navigation and Timing (PNT)
• single-baseline Real Time Kinematic (RTK)
• LAMBDA
• success rates
• Fixed-Failure rate Ratio Test (FFRT)

Acknowledgements

This work and Part I (Odolinski et al. 2013) have been executed in the framework of the Positioning Program Project 1.01 “New carrier phase processing strategies for achieving precise and reliable multi-satellite, multi-frequency GNSS/RNSS positioning in Australia” of the Cooperative Research Centre for Spatial Information (CRC-SI). The second author is the recipient of an Australian Research Council (ARC) Federation Fellowship (project number FF0883188). Post processed orbit and clock products were kindly provided by the GNSS centre of Wuhan University China. Observation data was provided by Noor Raziq and Boris Padovan at the GNSS Research Centre of Curtin University. All this support is gratefully acknowledged.