WiFi based trajectory alignment, calibration and easy site survey using smart phones and foot-mounted IMUs

2 Jun 2017 Yang Gu Caifa Zhou Andreas Wieser Zhimin Zhou

Foot-mounted inertial positioning (FMIP) can face problems of inertial drifts and unknown initial states in real applications, which renders the estimated trajectories inaccurate and not obtained in a well defined coordinate system for matching trajectories of different users. In this paper, an approach adopting received signal strength (RSS) measurements for Wifi access points (APs) are proposed to align and calibrate the trajectories estimated from foot mounted inertial measurement units (IMUs)... (read more)

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