Asv.Gnss

Asv.Gnss is a .NET library for parsing GNSS, aviation, and receiver-control protocols. The repository ships the Asv.Gnss NuGet package and a Asv.Gnss.Shell console project for RTCM v3 and ASTERIX stream diagnostics.

Use Asv.Gnss when an application needs to receive, decode, route, or serialize navigation data from receivers, serial ports, TCP/UDP endpoints, log files, or protocol streams.

Main capabilities

NMEA 0183 parsing and serialization.
RTCM v2 and RTCM v3 parsing, including ephemeris, stationary RTK, GLONASS bias, and MSM messages.
UBX support for u-blox receivers, including helper APIs for common configuration tasks.
ASTERIX message parsing and stream diagnostics for surveillance data.
Protocol registration for Asv.IO routers, ports, endpoint tags, and broadcast flows.
GNSS device discovery and microservices for receiver-facing workflows.

Projects

Project	Purpose
`Asv.Gnss`	Library with protocols, message models, parsers, device factory, and microservices.
`Asv.Gnss.Shell`	Console diagnostics for RTCM v3 streams and ASTERIX stream files.
`Asv.Gnss.Test`	xUnit v3 tests and binary protocol test resources.

Requirements

.NET SDK 10.0.
Windows, Linux, or macOS for the library.
Windows for the repository batch scripts build.bat and publish_nuget.bat.
Visual Studio, JetBrains Rider, or another IDE that supports SDK-style .NET projects.

22 October 2026