Design and Implementation of a Localization App to Achieve Sub-Meter Level Accuracy using Suparco’s Pak-Rehber Precise Positioning Service

For location-based systems like smart agriculture and cadastral mapping to function at their best, great accuracy must be achieved. Conventional GPS systems are insufficient for these particular applications because of their 5–3 m accuracy range. In order to overcome this constraint, this study presents an application that improves the sub-meter precision of the global positioning system (GPS) on Android handsets. In order to significantly increase the accuracy of GNSS location, the created software integrates Real-Time Kinematics (RTK) technology with stationary base-station, using raw global navigation satellite system (GNSS) data that is accessible on Android Nougat and later versions. The approach discussed uses raw GNSS data and combines advanced algorithms for multipath reduction and ambiguity resolution with precise error and by addressing the shortcomings of existing methods, such as long convergence times and the need for extra hardware, the method outperforms PPP and PPP with Ambiguity Resolution (PPP-AR). The application integrates smartphone RTK-GNSS measurements and uses Suparco’s Pak-Rehber RTK service to achieve precision up to 10 centimeters. The traditional methods like Single Point Positioning (SPP) has lacks maximum precision and the RTK based systems requiring industry grade expensive antennas and equipment. The study shows location-based services in industries that need unparalleled and centimeter level accuracy by introducing a novel way to achieve precision in Android GPS and establishing a standard for integrating state-of-the-art GNSS techniques into smartphones.