earticle

영어

With the development of the aviation industry, hundreds of aircraft fly over our heads every day, and numerous commercial aircraft are responsible for logistics and people's comings and goings. The reason why so many aircraft can operate safely is the development of electronic systems and precision navigation through GPS. As a result, commercial aircraft are exposed to electronic infringement that attacks aircraft systems with electromagnetic waves. Among them, GPS, which calculates the current location based on the information received from three to four satellites, has the disadvantage of being vulnerable to radio disturbance. The first signal transmitted from a satellite with a height of 20,200 km is 25 W, but when received from the ground, it is greatly weakened to -160 dBW. Currently, GPS radio frequency interference has been centered around the region for a long time due to the Ukraine-Russia war and the Israel-Hamas war. For this reason, this paper analyzes the concept of jamming and spoofing belonging to GPS RFI and how it affects the aircraft, reviews countermeasures, and suggests technical and policy measures.