State-of-the art and future in-car navigation systems – a survey

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.