Electromagnetic Analysis for Multi-constellation GNSS Satellite Visibility Determination in Urban Areas

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Electromagnetic Analysis for Multi-constellation GNSS Satellite Visibility Determination in Urban Areas
Title:
Electromagnetic Analysis for Multi-constellation GNSS Satellite Visibility Determination in Urban Areas
Journal Title:
2019 Photonics & Electromagnetics Research Symposium - Spring (PIERS-Spring)
Publication Date:
02 March 2020
Citation:
W. Zhao, B. Wang and E. Liu, "Electromagnetic Analysis for Multi-constellation GNSS Satellite Visibility Determination in Urban Areas," 2019 PhotonIcs & Electromagnetics Research Symposium - Spring (PIERS-Spring), Rome, Italy, 2019, pp. 2809-2813, doi: 10.1109/PIERS-Spring46901.2019.9017706.
Abstract:
The satellite visibility of global navigation satellite systems in urban areas is investigated with electromagnetic ray-based methods and 3D city models. The satellite position is computed with satellite orbital parameters and the SGP4 standard mathematical model of satellite orbits. The obstruction, reflection and diffraction of satellite signals due to the presence of buildings are taken into account in the prediction of satellite visibility, with the satellite signal propagation paths being determined by using the ray tracing and 3D city models. In some cases where it is hard for a receiver to detect a satellite due to too low signal level, there do exist predicted signal propagation paths from the satellite to the receiver via reflection or diffraction. The received signal level is also estimated with the electromagnetic ray-based methods to enable the predicted satellite visibility to be correlated with that observed.
License type:
PublisherCopyrights
Funding Info:
National Research Foundation under Virtual Singapore Program Award No. NRF2017VSG-AT3DCM001-038.
Description:
© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
ISSN:
1559-9450
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