The term "position" is usually used when the object is referenced to be at a specific place quantitatively expressed as a set of numerical coordinates. The alternative term "location" is commonly used when the object is referenced to be at a specific place qualitatively expressed as a city, street, building, or room. For short-range applications, the terms positioning and localization of an object can be used interchangeably, but in general, a localization constrains the position of an object to a particular area, such as a street or room, instead of determining its exact coordinates.
In the past, navigation was most often applied to ships, but today it is more important than ever and affects everyone. Cutting edge navigation technology is today focused not only on ever improving accuracy, but also on increasing availability to allow users of smartphones and other devices to navigate indoors and out, as well as reliability to protect users of navigation products from errors.
Research and activities
Our research in the navigation domain is focused on the development and improvement of wireless positioning and navigation technologies for outdoor and indoor use. At the moment, the majority of the work is focused in the following research topics:
Navigation System Integrity Assurance for Safety-Critical Operations
Our research activities in this field are focused on two topic areas: evolution of single frequency GBAS CAT II/III based on GPS L1 towards dual-constellation, dual-frequency (DCDF) GBAS and feasibility of high integrity support by high accuracy/precision GNSS augmentation systems such as NRTK and PPP-RTK for future safety-critical autonomous operations.
Cyber-Physical Security of Navigation Operations
The major focus in this area is on monitoring all GNSS frequency bands, RFI detection and mitigation, RFI event characterization and stakeholder (GNSS-based services, GNSS ground segments, etc.) alert. The navigation group is responsible for an ongoing international multi-site multi-frequency GNSS RFI monitoring and characterization initiative.
Ubiquitous Multi-Sensor and Signals of Opportunity Based Navigation
The research work in indoor navigation consists of developing new solutions for allowing first responders and other user groups that require navigation as well as team situational awareness to operate seamlessly between indoors and out. The approaches used can include, but are not limited to inter-agent ranging, visual navigation, inertial navigation, signals of opportunity and fusion with other sensors/systems.
Typical projects for us are:
The project portfolio in this domain includes research activities supported by the Norwegian Research Council, Norwegian Space Centre, European Space Agency, SESAR JU/H2020 and NATO Science for Peace and Security programme (NATO SPS). Our projects cover fundamental research up through application development. The main goal is the advancement of new technologies and translation into practical designs and demonstrators.
Here are some of our on-going projects:
SESAR JU/H2020 PJ14 W2 I-CNSS
Navigation System Integrity Assurance for Autonomous Operations (NSIA)
Cyber-Physical Security for Safety-Critical Aviation Operations