Wireless positioning based on GSM network

Mobile localization is one of the most important issues in navigation systems. Although, there are lots of methods and algorithms for general localization including Wi-Fi, GPS, indoor optic and sound localization; GSM network may be used to localize anything because of system advantages. GSM localization can be grouped two type systems in generally: These are network based localization systems and mobile handset based localization systems. Network based systems is completely depend on the mobile operator and its algorithm independent from user mobile handset model otherwise mobile handset solutions depend on mobile phone. There are many different solutions available for positioning the mobile phone using Gsm signals. Most known solutions are Cell-Identification, Angle of arrival, Time of difference), Time difference of arrival) etc.In this thesis, Cell-ID and Rssi method was used to design a localization system using GSM RF signal Android-based cell phones to quantify the advantage easy to get data such as RSSI (receiving signal strengh indicator) and Cell-ID(cellular antenna identification) number. To obtain more sensitive and accurate position, we prossesed the data in Kalman Filter.