NavIC/GNSS android raw measurments
Description
This dataset contains raw GNSS (Global Navigation Satellite System) and NAVIC (Navigation with Indian Constellation) measurements logged using the GNSSLogger application on a OnePlus Nord 2T smartphone. Data were collected in two distinct setups: 1) over 16 days in an open space environment in stand erect position, and 2) at various smartphone inclination angles (0°, 45°, 90°, 135°, and 180°) to evaluate the impact of device orientation on satellite acquisition and tracking. A u-blox F9P receiver was used to collect reference positions for accuracy validation during post-processing. This dataset emphasizes the inclusion of NAVIC data, providing a unique resource for evaluating the performance of NAVIC alongside other GNSS constellations in a smartphone-based context. This dataset was collected between the period of 15th September, 2024 to 1st October, 2024 at random time intervals throughout the day to obtain dynamic data and variations in the Dilution of Precision (DOP) values on the terrace of a 6 storeyed building in Aundh Road area of Pune, Maharashtra, India. There are major 2 folders with names: 1) Data with no inclination and 2) Data with inclination. In the first folder, there are sixteen folders containing the data, numbered 1 to 16. Every folder has thirty minutes' worth of raw GNSS/NavIC measurements that were recorded with a tripod-mounted OnePlus Nord 2T smartphone running the GNSSLogger software. The files include: I. File 1: RINEX observation files (.24o) II. File 2: NMEA ground truth files (.nmea) III. File 3: RINEX text data files (.txt) IV. File 4: Raw GNSS log files (.txt) i. File 1: gnsslog_*.txt (Log file) ii. File 2: gnsslog_*.24o (RINEX object file) iii. File 3: gnsslog_*.nmea (Ground truth file generated by GNSSLogger) iv. File 4: gnsslog_*_rnx_data.txt (RINEX file) The second folder contains 5 subfolders, each representing a different smartphone orientation angle (0°, 45°, 90°, 135°, and 180°). Each subfolder contains the same set of files as above for a duration of 10 minutes with the smartphone in different orientation angles, using the GNSSLogger app. Additional File: ground_truth_coordinates.txt which contains all the ground truth coordinates where the smartphone was mounted for data collection. This dataset offers important insights into NAVIC's performance in both stable and changeable orientation contexts since it is among the first to incorporate NAVIC data obtained using a smartphone. This dataset is available to researchers and developers to improve smartphone-based location applications, test GNSS/NAVIC signal processing methods, and evaluate signal quality under difficult circumstances.