1. A radio -navigation system which provides aircraft with horizontal and vertical guidance just before and during landing and, at certain fixed points, indicates the distance to the reference point of landing. [ NTIA ] [ RR ] 2. A system of radio navigation intended to assist aircraft in landing which provides lateral and vertical guidance, which may include indications of distance from the optimum point of landing. [ JP1 ]
INSTRUMENT LANDING SYSTEM (ILS)
Meaning of INSTRUMENT LANDING SYSTEM (ILS) in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012