Indoor Positioning Algorithm Fusing Multi-Source Information

With the development of computer technology, mobile intelligent terminal and wireless local area network (WLAN), the applications of location services have shown significant growth, and much progress has been made both in the applications and researches. According to the actual application requirements, a robust indoor positioning algorithm fusing multi-source information was presented in this paper. Firstly, the methods based on the inertial navigation system (INS) and the received signal strength (RSS) of WLAN were discussed and together with their advantages and disadvantages. Then, in order to further improve the positioning performance, a fusion model based on the sparse signal representation theory was designed to integrate the INS and RSS information, and next the optimization solution approach for the fusion model was deeply discussed. Finally, the simulation experiments were designed and carried out, and the experimental results demonstrated the feasibility and effectiveness of the proposed fusion algorithm.