GPS-independent navigation using smartphone sensors

Abstract

This study defines a novel method for navigating moving objects without using the GPS. Sensors of a smartphone measured desired values and a developed Android application recorded this data. A developed MATLAB code analyzed these values for a road trip by a car using several coordinate transformations. This code corrected the measured acceleration for removing the effects of the earth gravity and also removed the effects of the existed noises in the measured values by the sensors of this smartphone. The results show that, the calibrated data of the smartphone accelerometer can be used for obtaining a place, with an acceptable error. Nevertheless, obtaining acceleration using the GPS data is not correct.