Current OSNMA ICD - OSNMAlib v3.1.0

General information - OSNMAlib v3.1.0

This version is compatible with the following document versions:
Galileo_OSNMA_SIS_ICD_v1.1.pdf
Galileo_OSNMA_Receiver_Guidelines_v1.3.pdf

In other words, OSNMAlib is compatible with OSNMA live signal transmitted after 2023-08-03 11:00.

OSNMAlib complies with all the official test vectors. However, the internet download for the new Merkle tree is missing, so a file needs to be specified using the new_merkle_name option in the configuration dictionary (defaults to new_OSNMA_MerkleTree.xml).

See this wiki page for a list of all the OSNMAlib configuration options.

Check the website OSNMAlib.eu for a live view of the OSNMA protocol. The website also provides in an API the navigation data bits received and the OSNMAlib JSON output.

What has changed Major Version

• Status logging in pure JSON format. See json-schema [html|json].
• Multiple OSNMA optimizations. See (Improving Galileo OSNMA Time To First Authenticated Fix).
• Dual-frequency data reception from E1-B and E5b-I. Currently only for SBF.

What has changed Minor Version

• Reed-Solomon recovery for words 1-4 using words 17-20 transmitted in E1B.
• Reformated metrics folder to include new TTFAF simulations using dual-frequency and Reed Solomon.
• Custom run run.py file contains a dictionary pre-configured with several options for easy handling.

Full Changelog of this version: v2.5.4...v3.1.0