Models of Multipath Propagation Effects in a Ground-to-Air Surveillance System

Abstract

Models are developed for the electromagnetic propagation of diffuse and specular multipath for a surface-to-air ATC radar beacon link. The models take into account geometrical, topographical, electrical, and surface characteristics of the multipath propagation environment. The models are used to evaluate signal fading and azimuth estimation performance of a monopulse processor in a ground-based interrogator. The results are applied to assessing the performance of the DABS sensor. Conclusions and recommendations for experimental work are presented.

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Document Details

Document Type
Technical Report
Publication Date
Feb 25, 1974
Accession Number
AD0777241

Entities

People

  • T. P. Mcgarty

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Amplitude
  • Angle Of Incidence
  • Coordinate Systems
  • Detectors
  • Diffraction
  • Diffuse Reflection
  • Direction Finding
  • Electrical Properties
  • Electromagnetic Fields
  • Electromagnetic Radiation
  • Fresnel Zones
  • Geometry
  • Multipath Interference
  • Refraction
  • Scattering
  • Surface Properties
  • Surface Roughness

Fields of Study

  • Physics

Readers

  • Aviation Safety and Air Traffic Management
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Radio communications and signal processing.