MLS-NAVIGATION, GUIDANCE, AND CONTROL

G. L. Neal

Peer Reviewed

Abstract:	This paper will discuss application of the microwave landing system as a terminal area navigation tool, as an aid to vehicle guidance, and as a position control feedback element. Navigation in this context is used to mean velocity and position determination together with a description of desired velocity and position. Guidance relates to the usage of velocity and position information to describe progress along the desired path and specifically to describe changes required to maintain that path. Control relates to manipulation of the vehicle to satisfactorily achieve the guidance commands. These aspects of the general problem of terminal area navigation using the microwave landing system as a ground based aid will be discussed from a flight control engineer’s viewpoint with the emphasis on subtleties of the system characteristics that can greatly impact its eventual usefulness. Safety in flight will be discussed with respect to guidance requirements for separation, control requirements for monitoring, and integrity of the ground station itself.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 20, Number 3
Pages:	230 - 244
Cite this article:	Neal, G. L., "MLS-NAVIGATION, GUIDANCE, AND CONTROL", NAVIGATION: Journal of The Institute of Navigation, Vol. 20, No. 3, Fall 1973, pp. 230-244.
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