Navigation and Communications

Galileo simulator in CTAE’s laboratories, one of the few ones existing in Europe.The CTAE Navigation and Communications group supports the development of applications that require knowing the position of mobile units. Global Navigation Satellite Systems (GNSS), such as GPS and GALILEO, have already become a standard for a wide range of applications spanning many domains: transport and logistics, land surveying, agriculture, fisheries, tourism and leisure. Emerging techniques using wireless networks for localization are able to provide location information where GNSS signals are unavailable. CTAE is engaged in active research in such techniques, and conducts projects with external partners to help bring these innovations into use.

Our activities are focused on overcoming the limitations of current systems in providing accurate and reliable seamless positioning for stringent environments and applications, with special emphasis on urban mobility and Intelligent Transport Systems (ITS).

Our main areas of expertise include:

  • Simulation and testing of GNSS systems (GPS, Galileo) for performance evaluation and application-level validation.
  • GNSS receiver techniques in harsh environments (urban, high multipath, interference), with special focus on position integrity.
  • Positioning technologies deployed over wireless networks (WLAN, UWB, Zigbee, Bluetooth), applying different techniques: Time-based, Received Signal Strength.
  • GNSS/Wireless networks hybridization for positioning.
  • GNSS augmentations and collaborative positioning techniques.
  • Communication protocols for mobile networks: ad-hoc (MANET), mesh, cooperative and delay/disruption tolerant networks (DTN).
  • Digital communication techniques for wireless communication systems (modulations, multicarrier systems, channel estimation, multipath).

List of relevant projects:

  • MOVIN (Internal): Mobile Platform for Indoor Positioning
  • SPAAP (National/CDTI): Automatic positioning system for airport ground operations
  • POSTIP (Internal): Hybrid Positioning System integrating GPS and Wireless Network technologies
  • GKHY (Private): Independent receiver performance assessment
  • EPPP (ESA): Enhanced Precise Point Positioning using Galileo and GPS
  • SCENIC (EC): Definition of European GNSS Simulation and Testing Infrastructure (GSTI)
  • MULTINAV (Internal): Development of a Matlab GPS + Galileo Navigator
  • SIGMA (FP7/Marie Curie): Research on Innovative GNSS Multi-constellation Algorithms
  • GEMA (National/CDTI): Network communications for Management of Massive and Heterogeneous UAVs Fleets.