Tracking Location in the Absence of GPS Using Smart Phones

Date Added: Apr 2012
Format: PDF

The objective of this paper is to review existing research done on mobile phone based dead reckoning and to integrate algorithms from various existing research together in a single algorithm incorporating step detection, orientation detection, step length calculation, which gives a good estimated location even in the absence of GPS, provided the initial GPS data is available. In this paper, they have explored implementing a dead reckoning system based upon using an accelerometer as a step detector and a compass as a direction detector.