Application of RSSI Based Navigation in Indoor Positioning

Traditional satellite positioning systems based on the GNSS observations satisfies the need for localization in the outdoors environment. Nowadays, people want to know their position also inside buildings. The traditional satellite positioning systems cannot be used in such places. But there are some new technologies that allows for indoor positioning. The alternative in those places can be for example inertial measurement systems INS or pseudolite positioning systems. Furthermore, there are also other technologies, which allow performing indoor positioning. In the last few years the concept of the RF ranging technology is developed. Positioning with the use of this technology can be based on the distance measurement (range-based positioning), or on the radio signal strength indicator. The application of RSSI based navigation in indoor positioning is presented in the paper. Some problems, that occur during the calculations, are also described and discussed.