GPS has become an emerging and important positioning source for a wide range of applications, many of which going much beyond the traditional transport sector, i.e. personal mobility including dense urban, indoor, and outdoor applications. Practically all of the current applications rely on the GPS signals, sometimes also exploiting regional or local augmentations to increase accuracy. As applications also move into safety-critical areas where service reliability is of concern, users and services providers alike are becoming aware of the importance of service qualities and ultimately service guarantees.
Although GNSS is capable of providing accurate location in areas where the satellite signals are available, this is unlikely to be the case inside buildings, hence, if exploited, indoor navigation is not only a promising market but also seen as an essential local area augmentation for GPS, EGNOS, and Galileo.
Last update: 6 June 2007