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Japan Aerospace Exploration Agency

High-accuracy satellite navigation technology

A curved precision approach to an airport in bad weather conditions requires enhanced satellite navigation reliability. Conventional aircraft is equipeed with satellite navigation equipment by a GPS satellite, but signals may be temporarily lost because of ionospheric anomalies which may lead to errors.

Inertial Navigation System (INS) combined with the current system complement each other and will enable satellite navigation with higher precision and reliability.

Precision approach using satellite navigation with GBAS and ionospheric threats