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

January 1, 2016·
Hyuk Park
,
Adriano Camps
,
Ivan Sekulic
,
J. M. Rius
,
Daniel Pascual
,
Alberto Alonso-Arroyo
,
Jorge Querol
,
Raul Onrubia
· 1 min read
DOI
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.
Type
Publication
2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
publication

Abstract & Overview

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.

Publication Metadata

  • Authors: Hyuk Park, Adriano Camps, Ivan Sekulic, J. M. Rius, Daniel Pascual, Alberto Alonso-Arroyo, Jorge Querol, Raul Onrubia
  • Venue: 2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) (2016)
  • Research Areas: Satellite Communications, Signal Processing
  • DOI: 10.1109/igarss.2016.7730463
Satellite Communications Signal Processing