What does GNSS stand for?

GNSS stands for Global Navigation Satellite System, which is a broad term that encompasses various satellite systems that provide positioning, navigation, and timing information to users anywhere on Earth. The significance of GNSS lies in its ability to offer accurate location data through signals sent from satellites orbiting the Earth. This system includes various networks like the United States' Global Positioning System (GPS), Russia's GLONASS, Europe's Galileo, and China's BeiDou.

Understanding the function of GNSS is crucial for the work of survey technicians. These professionals rely on GNSS technology for precise surveying and mapping, as it enhances accuracy and efficiency in collecting geographic data. This technology allows for reliable positioning solutions across various applications, including land surveying, construction, and outdoor recreational activities.

The other options mentioned do not accurately represent the established terminology for satellite navigation systems, as they either refer to non-existent systems or misinterpret the function of GNSS. Therefore, the first choice correctly captures the universally accepted definition used in professional and technical contexts.