GUIDANCE ACCURACY CONSIDERATION FOR THE MICROWAVE LANDING SYSTEM

R. J. Kelly

Peer Reviewed

Abstract:	The Microwave Landing System (MU) being developed by FAA under a joint DOT/FAA, DOD and NASA program is designed to meet extended requirements in volumetric coverage, guidance accuracy, and integrity to meet the increasing needs of aviation. It is to be a common civil-military system and provide a level of operations and equipments suitable for all classes of users. The current Phase III of the FAA Five-Year Development Program is providing prototype hardware for evaluation and will result in a set of equipment specifications for production equipment. The TBSB has been recommended by an International Civil Aviation Organization (ICAO) technical panel for international standardization. This recommendation will be considered by a meeting of ICAO member states in April 1978. The complete specification of system accuracy is key to the MLS in achieving its operational objectives. There are a number of criteria which this specification must meet. It must provide the guidance accuracy necessary for the intended operations. It must recognize the Flight Control System (FCS) characteristics of the aircraft to be served. It must be expressed in terms which can be measured and also provide design goals for the ground and airborne equipment. The specification must include consideration of the monitor system and the designated alarm limits. This paper presents a proposed accuracy specification for MLS to meet these criteria.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 24, Number 3
Pages:	189 - 205
Cite this article:	Kelly, R. J., "GUIDANCE ACCURACY CONSIDERATION FOR THE MICROWAVE LANDING SYSTEM", NAVIGATION: Journal of The Institute of Navigation, Vol. 24, No. 3, Fall 1977, pp. 189-205.
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