Abstract
The employment of smartphone sensors for navigation applications and situational awareness on naval ships and in battlefield applications has been demonstrated. The PASSION application uses Wi-Fi, accelerometers, gyroscopes, QR codes, and manual entry on Android and iPhone tracking applications for ships. This paper primarily discusses supplementing the existing implementation with a new augmentation using Bluetooth Low Energy (BTLE version 4.0). The characteristics of BTLE segregated ranging using Received Signal Strength measurements are explored. The sensitivity of BTLE RSS measurements to environmental factors such as placement, cases, orientation of the device, orientation of the Smartphone and intervening materials is quantified. Algorithms that employ BTLE measurements within the framework of the overall navigation positioning and tracking problem are discussed. Their possible utilization for situational awareness and collaborative navigation is discussed.
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