Testing of a new single-frequency GNSS carrier phase attitude determination method: land,ship and aircraft experiments |
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| Authors: | P J G Teunissen G Giorgi P J Buist |
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| Institution: | (1) GNSS Research Lab, Curtin University of Technology, GPO Box U1987, Perth, WA, 6845, Australia;(2) Delft Institute of Earth Observation and Space Systems (DEOS), Delft University of Technology, PO Box 5058, 2600 GB Delft, The Netherlands |
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| Abstract: | Global navigation satellite system (GNSS) ambiguity resolution is the process of resolving the unknown cycle ambiguities of
the carrier phase data as integers. The sole purpose of ambiguity resolution is to use the integer ambiguity constraints as
a means of improving significantly on the precision of the remaining GNSS model parameters. In this contribution, we consider
the problem of ambiguity resolution for GNSS attitude determination. We analyse the performance of a new ambiguity resolution
method for GNSS attitude determination. As it will be shown, this method provides a numerically efficient, highly reliable
and robust solution of the nonlinearly constrained integer least-squares GNSS compass estimators. The analyses have been done
by means of a unique set of extensive experimental tests, using simulated as well as actual GNSS data and using receivers
of different manufacturers and type as well as different platforms. The executed field tests cover two static land experiments,
one in the Netherlands and one in Australia, and two dynamic experiments, a low-dynamics vessel experiment and high-dynamics
aircraft experiment. In our analyses, we focus on stand-alone, unaided, single-frequency, single-epoch attitude determination,
as this is the most challenging case of GNSS compass processing. |
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