Positioning Accuracy Enhancement of Android Based GNSS Raw Data Through Advanced Error Correcting Algorithm

Recent years have witnessed a significant evolution in GNSS technology, moving from costly survey-grade receivers to compact, affordable modules and leveraging Android-based smartphones. These devices now integrate GNSS sensors alongside traditional features, becoming versatile tools for Position, Navigation, and Timing (PNT) applications. Since Android 7.0 (Nougat) and Location API 24, smartphones can record raw GNSS data like Rinex, enabling detailed analysis of satellite visibility, signal strength, and positioning accuracy. Research shows error correction techniques and Kalman filters notably enhance GNSS accuracy on Android. This precision makes smartphones suitable for geomatics, IoT, and infrastructure. Multi-constellation, multi-frequency GNSS use further enhances their utility across environments. This democratizes high-precision positioning from specialized to consumer devices, broadening applications in everyday use.