GnssLogger icon

v3.1.0.3 by Developed with Google


Oct 22, 2024

About GnssLogger

A handy tool to analyze, visualize and log Android location and sensor data!

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. GnssLogger is available for phones and watches. It comes with the following features for phones:

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.

It comes with the following features for watches running Wear OS 3.0 and higher:

● View real-time GNSS chipset status information.

● Log various GNSS and sensor data to CSV and RINEX files.

What's New in the Latest Version v3.1.0.3

Last updated on Oct 22, 2024

• Now available for WearOS - Download GnssLogger for Android smartwatches from Google Play!
• Measurements tab - See a real-time snapshot of raw measurement details, including code type, measurement state, and ADR state.
• Spoof/Jam tab - See a real-time plot of automatic gain control (AGC) and related analysis.
• RINEX log enhancements - RINEX v4.01 support, ADR/Carrier Phase is now aligned.

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Additional APP Information

Latest Version

Request GnssLogger Update v3.1.0.3

Uploaded by

ALa'a Khashani

Requires Android

Android 7.0+

Available on

Get GnssLogger on Google Play

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GnssLogger Screenshots

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