Research on low-cost vehicular integrated navigation

Bei-Dou (BD) passive locating has been widely used with the successful launch of BD navigation satellites. This paper analyzes BD passive locating, GSM wireless location and dead reckoning (DR) and proposes an integrated navigation based on these three low-cost location technologies by Federal Kalman Filtering (FKF), which makes full use of their own advantages. The FKF applies both the GPS and GSM locating information to solve the equation of position, thus the state of DR system is modified in the process of filtering, and the output of integrated position can provide accurate initial location and direction.