What does civil aviation ils mean?

Instrument Landing System (ILS), also translated as Instrument Landing System and Blind Landing System, is the most widely used aircraft precision approach and landing guidance system. Its function is to guide the course and glide slope through two radio signals emitted from the ground, and to establish a virtual path from the runway to the air. The aircraft can determine its relative position with this path through the airborne receiving equipment, so that the aircraft can fly to the runway in the right direction and descend smoothly, and finally achieve a safe landing. Because the instrument landing system can guide the aircraft to land in the low weather standard or the weather where the pilot can't see any visual reference, it is called blind landing.

Blind descent is the common name of ILS. Because the instrument landing system can guide the aircraft to land in the low weather standard or the weather where the pilot can't see any visual reference, people call the instrument landing system blind landing, that is, the pilot can control the flight landing when the airport runway can't be seen clearly with the naked eye.