Multiantenna GNSS and Inertial Sensors/Odometer Coupling for Robust Vehicular Navigation

Abstract

Location information is one of the most vital information required to achieve intelligence and context-awareness for Internet of Things (IoT) applications such as driverless cars. However, related security and privacy threats are a major holdback. With increasing focus on the use Global Navigation Satellite Systems (GNSS) for autonomous navigation and related applications, it is important to provide robust navigation solutions. Radio frequency interference, either intentional or unintentional, has a direct impact on GNSS navigation performance related to observability and accuracy. In terms of security, spoofing is the major issue of concern. This paper focuses on multi-antenna GNSS and Inertial Navigation System (INS)-odometer integration to improve robustness, security and privacy of navigation solutions. Multi-antenna GNSS provides robustness against different interference sources and integration with INS provides continuous navigation solutions during short-term signal outages. Performance of the proposed architecture is evaluated using different user scenarios in the presence of spoofing and interference signals in real vehicular environments.