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Impact of multi-path by ISS structure on GEROS-ISS measured waveforms

By Park Hyuk, Adriano José Camps Carmona, Ivan Sekulic, Juan Manuel Rius Casals, Daniel Pascual Biosca, Alberto Alonso Arroyo, Jorge Querol Borràs and Raúl Onrubia Ibáñez

Abstract

The GNSS rEflectometry, Radio Occultation and Scatterometry onboard the International Space Station (GEROS-ISS) experiment consists of the installation of a GNSS reflectometry (GNSS-R) instrument on the International Space Station (ISS). Due to the complex structure of ISS, the GEROS-ISS instrument suffers from multipath effects. The collected signals are not only from received directly, but also after multiple reflections in the ISS structure. This work analyzes the multipath effect of the GEROS-ISS instrument based on the ISS structure. Using the ray tracing simulation, all rays reaching the instrument after one or two reflections are computed, as well as the corresponding additional delays. This information, together with the direction of arrival to the antenna arrays (up and down-looking), and the co- and cross-polar antenna patterns is used to assess the impact of multipath on the waveforms are demonstrated.Peer Reviewe

Topics: Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Antenes i agrupacions d'antenes, Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Satèl·lits i ràdioenllaços, Global Positioning System, Antenna arrays, Antenna arrays, Multipath channels, Ray tracing, Snavigation, GEROS-ISS, GNSS reflectometry radio occultation and scatterometry onboard the international space station, International space station, Multipath effect, Ray tracing simulation, Direction of arrival, Antenna arrays, Cross-polar antenna patterns, Cocross-polar antenna patterns, Sistema de posicionament global, GNSS (Sistema de navegació), Antenes (Electrònica) -- Agrupacions
Publisher: 'Institute of Electrical and Electronics Engineers (IEEE)'
Year: 2016
DOI identifier: 10.1109/IGARSS.2016.7730463
OAI identifier: oai:upcommons.upc.edu:2117/100613
Provided by: UPCommons
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