In real-world disasters, position tracking information of rescuer is essential for safe and effective rescue operation. However, it is not easy to provide tracking information because GPS is not usable in indoor area, and there is no infrastructure for position tracking. In this paper, integration algorithm between Pedestrian Dead Reckoning (PDR) and Chirp Spread Spectrum (CSS) based indoor radio navigation is proposed for the solution of personal indoor tracking with low cost. And prototype product which applied the developed integration algorithm is evaluated.

Keywords: pedestrian dead reckoning, indoor positioning, integration algorithm