Precise Positioning in Urban Environments

Olivier Julien, Lina Deambrogio, Damien Serant

Abstract:	This paper investigates the use of carrier phase measurements in an urban environment based on a low-cost (mono-frequency) and dual constellation case. First, the theoretical investigation of the optimal setting of PLL parameters is performed together with tests in a simulated urban environment Second, two positioning solution (differential carrier phase and RTK) are presented and tested in a real environment using only GPS L1 C/A measurement. Results are encouraging showing a positioning accuracy at the meter level despite the mono-constellation configuration of the test, leading to strong expectation for upcoming multi-constellation tests.
Published in:	Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014) September 8 - 12, 2014 Tampa Convention Center Tampa, Florida
Pages:	905 - 916
Cite this article:	Julien, Olivier, Deambrogio, Lina, Serant, Damien, "Precise Positioning in Urban Environments," Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014), Tampa, Florida, September 2014, pp. 905-916.
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