[Documentation] [TitleIndex] [WordIndex

GNSS/SPAN Data Post-Processing

Once you have captured NovAtel logs in a ROS bag file using novatel_oem7_driver, you can use NovAtel Convert or Inertial Explorer® to analyze or post-process your data and thus extend its usefulness beyond real-time operation.

The NovAtel log format is open and public, so it is also possible to use programs like Microsoft Excel, MathWorks Matlab, or software of your own design to quickly and easily evaluate and visualize the data. For more information about the structure of NovAtel logs, please refer to our Documentation Portal here:

NovAtel Convert

NovAtel Convert is a desktop application that NovAtel provides for free.

NovAtel Convert can:

There are versions of Convert for Windows and Linux. Convert also offers a command-line interface, so users may use it to script or otherwise automate the conversion of log data through it.

Download Convert for Windows or Linux

Go here to the NovAtel support site to download the latest version of Convert:

Convert Command-Line Use

NovAtel Convert's --help argument will output the full help text that describes how to use it from the command-line.

Here's an example execution of Convert run from the command-line on Ubuntu 18.04. A filtered ROS bag is split in to different files, one for each different NovAtel log type in the bag: https://wiki.ros.org/NovAtelApplicationsEngineering/draft_driver_page?action=AttachFile&do=get&target=NovAtelConvertCLILinuxKMLExample.png

Convert GUI Use

The NovAtel Convert graphical interface is launched by running Convert without any command-line arguments.

To get the full list of supported command line arguments, run Convert with the --help argument:

NovAtelConvert --help

Here's an example of converting a filtered ROS bag with the "--split" argument which causes each log type to be converted into an individual file.

The general workflow of the Convert GUI is:

Here's an example of what the Convert GUI appears like on Windows and on Linux: https://wiki.ros.org/NovAtelApplicationsEngineering/draft_driver_page?action=AttachFile&do=get&target=NovAtelConvertGui.png

Inertial Explorer and Inertial Explorer Xpress

NovAtel's Waypoint group produces Inertial Explorer® and Inertial Explorer® Xpress. These desktop applications provide extensive, easy-to-use and highly advanced data post-processing abilities. Use Inertial Explorer to pull-in base station RTK data and reprocess your recorded GNSS/INS data. Inertial Explorer can process data sets in reverse time to close gaps and reduce error in GNSS/INS data sets.

Inertial Explorer Linux SDK

There is a Linux SDK edition of Inertial Explorer available, please contact NovAtel Customer Support to request a demo:

Screenshot of Inertial Explorer


More information on Inertial Explorer

For more information regarding Inertial Explorer and Inertial Explorer Xpress, please visit:

Return to the novatel_oem7_driver page for next steps

2022-06-11 12:52