Abstract:This paper proposes a fusion method of initial position based on WiFi/PDR. In this method, the WiFi positioning results within 0.2 s after the steps are detected are set, the adjacent two-step distances and heading angles estimated in the PDR are taken as reference, the adjacent two-step WiFi positioning results are screened by the distance and angle thresholds, and the optimal positioning results are chosen according to the degree of deviation from the angle. Experimental results show that the initial position accuracy of this method is 1.2-1.8 m, which is 50% smaller than WiFi fingerprint positioning error.
LI Mingfeng,WANG Shen,TAN Ding. Research on the Fusion Method of the Initial Position of Indoor Location Based on WiFi/PDR[J]. jgg, 2019, 39(6): 602-606.