GnssLogger App

GnssLogger by Google enables in-depth analysis and logging of all types of location and sensor data such as GPS (Global Positioning System), network location and other sensor data. It comes with the following features: HOME TAB: ● Control various data logging such as raw GNSS measurements, GnssStatus, NMEA, navigation messages, sensor data and RINEX logs. LOG TAB: ● View all location and raw measurement data. ● Control offline logging using 'Start Log', 'Stop & Send' and 'Timed Log'. ● Enable specific items to be logged using corresponding switches in Home Tab. ● Delete existing log files from disk. MAP TAB: ● Visualize on GoogleMap, the location provided by GPS chipset, Network Location Provider (NLP), Fused Location Provider (FLP), and computed Weighted Least Square (WLS) position. ● Toggle between different map views and location types. PLOTS TAB: ● Visualize CN0 (Signal Strength), PR (pseudorange) Residual and PRR (pseudorange rate) Residual vs time. STATUS TAB: ● View detailed information of all visible GNSS (Global Navigation Satellite System) satellites such as GPS, Beidou (BDS), QZSS, GAL (Galileo), GLO (GLONASS) and IRNSS. SKYPLOT TAB: ● Visualize the data of all visible GNSS satellites using a skyplot. ● View the average CN0 of all the satellites in view and the ones used in fix. AGNSS TAB: ● Experiment with Assisted-GNSS functionalities. WLS Analysis TAB: ● View the Weighted Least Square position, velocity and their uncertainties computed based on raw GNSS measurements. ● Compare the WLS results to the GNSS chipset reported values.