Date Added: Jan 2012
A survey of the information sources and information fusion technologies used in the current in-car navigation systems is presented. The pros and cons of the four commonly used information sources - GNSS/RF-based positioning, vehicle motion sensors, vehicle models and map information - are described. Common filters to combine the information from the various sources are discussed. A prediction of possible tracks in the further development of in-car navigation systems concludes the survey. Today a large share of private cars is delivered from the factory with a GPS-based in-car navigation system.