GNSS_DR

GNSS_DR tracks and logs global navigation satellite systems (GNSS)

Features

GPS Features

1. Ability to track GPS information via GNSS
   • Latitude, Longitude, Speed, Height, # of Sats, Bearing, Horizontal Accuracy, Vertical Accuracy, Speed Accuracy
   • Individual Satellites (ID, GNSS Type, Elevation, Azim, C/NO)
2. Ability to track GPS information via FusedLocationProvider
   • Latitude, Longitude, Speed, Height, Bearing, Horizontal Accuracy, Vertical Accuracy, Speed Accuracy
3. Uses GNSS by default and swtiches to FusedLocationProvider when gps fix is unavailable
4. Ability to choose GPS update frequency (in milliseconds)

Logging Features

1. Logs GPS information in CSV format to phone's Internal Storage folder

System Requirements

Android Device with support for GNSS

• Target SDK: API 30 (Android 11)
• Minimum SDK: API 28 (Android 9)

Software

• Android Studio Bumblebee

API Requirements

• Google Maps API Key (add to google_maps_api.xml)

How to Use

• When you first launch the application after building the source code, you will see a Settings tab.
  • By default, the gps update frequency is set to 100ms but you can change this value with the slider
• If you then switch to the log tab, you will see that the gps button at the top right is switched off
  • Turn this switch button on to start tracking gps location
  • As mentioned above, the default location manager provider is GNSS but will automatically switch to FusedLocationProvider in a DR scenario
• You can use the start, reset, and save buttons in the bottom of the UI to log gps information accordingly
• A swipe up map that displays the currently tracked latitutde and longitude of the phone is included to check your general location

Authors

• Hawon Park
• Jeong Ho Shin