What is the meaning of GNSS in navigation technology?

The term GNSS refers to Global Navigation Satellite System, which encompasses various satellite systems that provide geospatial positioning with global coverage. GNSS enables accurate location information and time synchronization to be determined anywhere on Earth, allowing for a range of applications in navigation, mapping, and timing.

Using a network of satellites, GNSS equipment can receive signals and calculate precise locations by triangulating the signals' time of travel. This technology is integral to modern aviation navigation systems, enhancing pilots' situational awareness and allowing for precise navigation, especially in areas where traditional ground-based navigation aids are limited or unavailable.

Other potential options, while seemingly relevant, do not represent established definitions related to satellite navigation technology. For instance, Geographic Network Security System and General Navigation Satellite Service do not match the commonly accepted terminology in navigation. Similarly, Global Networked Situational System does not accurately describe the functions or scope of satellite-based navigation. Overall, it's crucial to recognize GNSS as the standard term that encompasses the framework for satellite-based navigation systems worldwide.