v6.0.0

Copied from https://gage.upc.edu/en/learning-materials/software-tools/glab-tool-suite-links/glab-release-notes. See the link for file-by-file changes.

gLAB v6.0.0 (2024/11/22)

This is the greatest upgrade to gLAB since its inception. It has the long awaited multi-constellation and multi-frequency support. Moreover, this is the first public tool (and probably the only one) to fully solve the measurement management problem, that is, being able to select any measurement or combination for cycle-slip detection or the filter in a per constellation or per satellite basis.

Moreover, the C code has been greatly optimized (more than 40% faster in GPS only files and more than 70% faster in multi-constellation files compared to version 5), which turns gLAB in one of the fastest (if not the fastest) RINEX processing tool.

A FAQ has been added (in gLAB and in the manual), which will help to solve common issues quick. Therefore it is recommend to check the question answered in it.

This version has been developed as part of the PhD thesis of the main author of the tool. The PhD thesis is available here.

There main new features and changes of this version are the following:

New highlighted features:

• Added support for multi-constellation (GPS, Galileo, GLONASS, GEO, BDS, QZSS, IRNSS). The only exception is DGNSS and RTCM decoding, which still is GPS only.
• Added support for multi-frequency (all RINEX frequencies) without any possible dual, triple or quadruple combination.
• Added SBAS DFMC processing.
• Fully rewritten the measurement management system, which can be automatic, semi-automatic or manual. It allows selection any measurment or combination in a per satellite basis according to user preferences and the contents of the RINEX observation file. This also fixes the issues and limitations in version 5 with measurement selection.
• Added a FAQ with the main the common problems users may face with the current vertsion or have commonly asked before.
• Added an autocompletion script for parameters and fixed arguments in Bash.
• In Windows, admin privileges are now optional.
• In Linux (for x86_64 only), the graphical tool is now provided a self-contained package (as in Windows and Mac) due to basemap library is not available anymore in the most recent versions.
• MEAS message can now print any measurement selected by the user (including Doppler, SNR and LLI). As it also prints the SVN, block type, arc lenght and arc number, the MEAS message can work as a RINEX observation to columnar text file converter.
• Multi-threading is now also available in the GUI.
• The tooltips above certain size in the GUI now have scrollbars.
• The epoch time is now also printed in HH:MM:SS.zz format in all messages to easy reading.

Modifications and bug fixes:

• Many input parameters have changed the argument format, but gLAB will automatically detect if the version 5 format is used and parse them correctly (i.e. full backwards compatibility).
• Output messages format have changed from version 5. To maintain compatibility with version 5, there is an option to make gLAB print the output messages in version 5 format.
• The C code has been checked with the "AddressSanitizer" to check for memory bugs.
• Dropped support for 32 bits systems (except for ARM v7). The tools can work in 32 bits but must be compiled by the user.
• Dropped support for Ubuntu 14, Windows XP and vista.
• Cygwin package in Windows has been updated with a newer version with 64 bits (this version can also be updated by the user with the Cygwin installer). The previous Cygwin version had been kept to maintain compatibility with Windows XP and 32 bit systems.
• Fixed a bug in SBAS 1F a made that not to save the corrections when a message type 0 was read as a message type 2.
• Fixed several bugs in the core, GUI and the plotting tool. See full list of changes below.

Future updates:

• RAIM/ARAIM

v5.5.1

Copied from https://gage.upc.edu/en/learning-materials/software-tools/glab-tool-suite-links/glab-release-notes. See the link for file-by-file changes.

gLAB v5.5.1 (2020/12/11)

This is a maintenance release to fix the processing problems with the updated ANTEX with multi-constellation and multi-frequency receiver APC (since igs14_2112.atx).

Modifications and bug fixes:

• Updated CDDIS links in the GUI for downloading data.
• Fixed bug when ANTEX has multi-constellation and multi-frequency receiver APC.

Future updates:

• Multiconstellation
• SBAS DFMC