Accession Number : AD0715579

Title :   Multipath and Diffraction Effects of Structures on Localizer Systems.

Descriptive Note : Final rept. Jan 69-Aug 70.

Corporate Author : IBM FEDERAL SYSTEMS DIV GAITHERSBURG MD

Report Date : AUG 1970

Pagination or Media Count : 179

Abstract : The document describes the work performed in developing an organized approach for analyzing the effects of multipath scattering and diffraction from hangars, buildings, and other discontinuities on the performance of Instrument Landing System (ILS) Localizer facilities. A mathematical model was developed and computer programs were designed. Also, closed form solutions were developed for simple geometric surfaces such as flat walls and triangles, and a general arithmetic integration approach was developed for the more complex structural configurations. (Author)

Descriptors :   *RADIO SIGNALS, *INSTRUMENT LANDINGS, *HANGARS, SCATTERING, INTERFERENCE, MATHEMATICAL MODELS, REFLECTION, DIFFRACTION, BUILDINGS, COMPUTER PROGRAMMING.

Subject Categories : Air Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE