The emerging European global satellite system Galileo has gained much public interest regarding location and position services. Two Galileo Open Service signals, namely E1 and E5, will provide the frequency diversity. The dualfrequency receiver will greatly enhance the performance of satellite navigation. However, the dual-frequency receiver becomes more complex since it needs to process two si...

Tim Murphy is Technical Fellow with Boeing Commercial Airplanes where he is a member of the Electronic Systems organization. Tim has 25 years of experience in radio navigation communications and surveillance systems for civil aviation. The current focus of his work is avionics for new airplane product development, and next generation CNS technologies to support Air Traffic Management including ...

RFID-based public transport ticketing systems rely on widespread networks of RFID readers that locate the user within the transport network in real time to be able to verify whether he can travel at that time with the ticket he holds. This paper presents a system that uses that same RFID-based location information to give the user navigation indications depending on his current location, provid...

This abstract addresses challenges and strategies for wireless positioning. The anisotropic network localization problem and the solutions are discussed for wireless sensor networks. Applications of Bayesian filters are introduced to track positioning parameters in global navigation satellite systems. Radio map-based positioning solutions robust to the received signal strength variation are als...

The Global Positioning System (GPS) has become the most widely used positioning, navigation, and timing system. However, vulnerability of GPS to radio frequency interference attracted significant attention. After experiencing several incidents intentional high-power jamming trials by North Korea, South Korea decided deploy enhanced long-range navigation (eLoran) system, which is a terrestrial r...