An MLS for the Twenty-First Century

Herbert P. Raabe

Abstract:	An MLS concept is proposed which is based on the specifications of the Technical Committee 117 of the RTCA and meets the more stringent requirements stated by the NIAG (NATO Industrial Advisory Group). According to this concept a microwave radiation field in C-band is generated around an airport over 360 degrees in azimuth, 20 degrees in elevation, and to a distance of 30 run, by a rotating fan beam scanner which also provides distance measurement, so that a unique signature is generated from which the position of the aircraft can be derived. For precision landing guidance the scanner also generates an identical signature in &-band over an azimuth of 120 degrees and provides hemispherical coverage over short distance in cband to serve VTOL aircraft and taxiing guidance.
Published in:	Proceedings of the 1992 National Technical Meeting of The Institute of Navigation January 27 - 29, 1992 Catamaran Resort Hotel San Diego, CA
Pages:	303 - 310
Cite this article:	Raabe, Herbert P., "An MLS for the Twenty-First Century," Proceedings of the 1992 National Technical Meeting of The Institute of Navigation, San Diego, CA, January 1992, pp. 303-310.
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