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Satellite Navigation

SBAS: More Accurate GPS

Satellite Navigation [image]

The spatial, speed, direction, and time data provided by a global positioning system (GPS) are already widely used as essential infrastructure of our daily lives. GPS is used in various areas of not only navigation for vehicles but also aerial/marine navigation system, saving lives, leisure, protection of wild animals, etc. Linked with the Fourth Industrial Revolution, GPS is expected to play a crucial role in securing competitiveness in future new industries. KARI is developing Korea’s satellite-based augmentation system (SBAS) which can compensate for GPS errors to increase accuracy and is researching Korea’s GPS as well.

  • KASS: Korea’s SBAS

    Korea Aerospace Research Institute is developing Satellite Based Augmentation System (SBAS) called Korea Augmentation Satellite System (KASS), which improves the accuracy of GPS position errors below 3 meters. When the development is completed, Republic Korea is expected to become the seventh country to operate SBAS as a civil aviation safety-critical system from October 2022.

Korea Positioning System, KPS

KARI is reviewing the structure, service, and application fields of the Korea Positioning System (KPS), starting with the planning of GPS development.

The KPS Development Plan (draft) is a regional GPS center on the Korean peninsula using three geostationary navigation satellites, four oblique navigation satellites, and terrestrial systems. The goal is to prove the ultra-precision location data service in meter, sub-meter, and centimeter resolutions. The implementation of KPS can guarantee citizens’ safety by operating the national network stably without depending on foreign systems. It is also expected to accelerate the Fourth Industrial Revolution such as self-driving automobiles as well as the drone industry by acquiring accurate location information.

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