GNSS vulnerabilities: simulation, verification, and mitigation platform design

Abstract

This paper introduces the design and construction of global navigation satellite systems (GNSS) vulnerability simulation, verification, and mitigation platform. The platform contains five modules: simulation of the signal-in-space environment, simulation of the vulnerabilities in the space segment, signal quality monitoring and data processing, vulnerability assessment and validation, and integrated control. It provides a set of integrated simulations of different types of interference in the GNSS signal propagation domain, including electromagnetic interference, atmospheric disturbances, multipath, and interference in the inter-satellite link. This paper focuses on the design of the main system modules and testing through an experimental analysis. The results demonstrate both the effectiveness and realism of the modules and overall platform.

Keywords:

• GNSS vulnerability
• spoofing
• jamming
• ionosphere delay
• multipath effect

Acknowledgments

This study is supported by the National High Technology Research and Development Program of China (863 Program, No. 2011AA120503).