Till recently, no significant attempts have been made of developing Aircraft
Based Augmentation System (ABAS) architectures capable of generating
integrity signals suitable for safety-critical GNSS applications and no
commercial ABAS products are available at present.
The aim of this research is to support the design a system that generates
integrity signals suitable for GNSS application. The conceptual design and key
mathematical models were recently developed by the Italian Air Force
Experimental Flight Test Centre (CSV-RSV) [1, 2]. Such a system, would be
able to provide steering information to the pilot, allowing for real-time and
continuous integrity monitoring, avoidance of safety/mission-critical flight
conditions and fast recovery of the required navigation performance in case of
GNSS data losses.
The key elements addressed in this thesis are the development of a CATIA
model for military and civil aircraft, supporting antenna obscuration and
multipath analysis. This is to allow the ABAS system to generate suitable
integrity flags when satellites signals are lost. In order to analyse the GNSS
signal loss causes, the GNSS constellation models, the flight dynamics models,
fading models, multipath models, Doppler shift models, and GNSS receiver
tracking technology previously developed by CSV-RSV, are considered in this
research.
| Identifer | oai:union.ndltd.org:CRANFIELD1/oai:dspace.lib.cranfield.ac.uk:1826/7442 |
| Date | 01 1900 |
| Creators | Shao, Liang |
| Contributors | Sabatini, Roberto |
| Publisher | Cranfield University |
| Source Sets | CRANFIELD1 |
| Language | English |
| Detected Language | English |
| Type | Thesis or dissertation, Masters, MSc by Research |
| Rights | © Cranfield University 2012. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright owner. |
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