There are 2 repositories under glonass topic.
OpenTracker - open source GPS/GLONASS hardware
A compact Arduino library to parse NMEA sentences.
GNSS software for multipath analysis
A collection of awesome GNSS/RNSS related sources, tools, data, MOOC's course, etc.
GNSS Information dashboard for OpenWrt LuCi
Arduino library for interfacing with any GPS, GLONASS, Galileo or GNSS module and interpreting its NMEA messages.
Document about design of a GNSS receiver
Parser for rinex files version 3.03 written on .net 3.5
倍思(BAS, BDS Augmentation Service)北斗增强服务系统/网络RTK系统,能满足大规模基站及用户接入,可提供连续实时稳定的厘米级差分定位服务,达到业内领先水平。www.gaoweispace.com
iOS app for creating / viewing / exporting GPX tracks
Encoding/decoding of RTCM v. 3
Decoder for GNSS Navigation messages
Web Application for calculating transition parameters from local coordinate systems to WGS84 with geodetic accuracy for geodesy and GIS
Arduino library for Deneyap GPS and GLONASS Locator
Khronos GNSS Frequency Standand & NTP Server
JSON serialization/deserialization of RTCM v. 3
MicroPython I2C driver for Quectel GNSS L76-L (GPS)
Wideband front-end digitizer for GPS, GLONASS, Galileo, BeiDou