GLONASS
GLONASS (Global Navigation Satellite System) is a satellite-based navigation system developed by Russia. It operates globally and is one of the major GNSS systems alongside GPS and BeiDou. GLONASS provides accurate positioning for various applications, including surveying, navigation, mobile devices, and industrial operations.
Using GLONASS in conjunction with GPS improves positional accuracy, especially in challenging environments such as urban areas and mountainous regions.