Navigation & Positioning

The Global Navigation Satellite System (GNSS) is an essential technology for navigation, positioning, and data logging during maritime operations. By utilizing a constellation of satellites orbiting the Earth, GNSS provides highly accurate positioning and timing information. Modern vessels are often equipped with multi-system GNSS receivers that support various satellite systems, including the U.S. GPS, Russia’s GLONASS, Europe’s Galileo, and China’s BeiDou. These systems offer dual-frequency or even multi-frequency reception, significantly enhancing positioning stability and resistance to signal interference. Working in synergy, these systems ensure that researchers can obtain real-time, reliable geospatial data even in the open ocean—making GNSS a critical foundation for precise execution of marine missions.