Keynote: Mountain-top Radio Occultation with Multi-GNSS Signals: Experiment and Preliminary Results

Yu Morton, Harrison Bourne, Steve Taylor, Dongyang Xu, and Rong Yang, Frank van Graas, Neeraj Pujara

Peer Reviewed

Abstract:	This paper discusses a mountaintop based radio occultation experiment and preliminary data processing and analysis results. The objective of this experiment is to capture high quality multi-GNSS, multi-frequency signals traversing ionosphere and troposphere structures. The experiment was conducted on the peak of Haleakala, Maui, Hawaii on April 20-26, 2015. A high gain mesh dish antenna was steered towards the horizon to capture rising and setting GPS, GLONASS, Galileo, BeiDou, and QZSS satellite signals. Software-defined radio RF front ends and a commercial GNSS receiver are used to receive and process the signals. The preliminary analysis of 15TB of data collected during the experiment shows a wealth of rich signatures of GNSS signals propagating through the planetary boundary layer and reflections from the ocean surface. These signatures are enabling a better understanding of the effects of our environment on GNSS signal propagation, which in turn will improve GNSS-based navigation and sensing technologies.
Published in:	Proceedings of the ION 2017 Pacific PNT Meeting May 1 - 4, 2017 Marriott Waikiki Beach Resort & Spa Honolulu, Hawaii
Pages:	490 - 499
Cite this article:	Morton, Yu, Bourne, Harrison, Taylor, Steve, Xu, Dongyang, Yang, Rong, van Graas, Frank, Pujara, Neeraj, "Keynote: Mountain-top Radio Occultation with Multi-GNSS Signals: Experiment and Preliminary Results," Proceedings of the ION 2017 Pacific PNT Meeting, Honolulu, Hawaii, May 2017, pp. 490-499. https://doi.org/10.33012/2017.15073
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