Cell Phone-Based Land Navigation Methods and Systems

Abstract

An apparatus wherein a smartphone's sensors, i.e.; cameras, compasses and inertial measurements units, and methods for processing the data taken by these sensors, are used to determine accurate and timely geo-locations to enable land navigation in GPS-denied environments. Celestial, terrestrial and inertial land navigation modes are described in terms of how smartphone sensors are exploited and how data from the sensors is processed to achieve accurate and timely geo-position and navigation capabilities in GPS-denied environments.

Dependencies are inferred from the claim text.