L-Band Air-to-Air Multipath Measurements

Abstract

A series of air-to-air earth-scattered L-Band multipath measurements are described and experimental results presented. During these measurements RF pulses were transmitted between two instrumented general aviation aircraft flying coaltitude, diverging paths over a variety of terrain and water surfaces. Multipath data was collected over grazing angles ranging from approx 5 deg. to approx 75 deg. The objectives of these measurements were the: (1) Characterization of the multipath environment in which beacon based airborne collision avoidance (BCAS) equipment would operate. (2) Investigation of the merits and limitations of various degrees of antenna diversity in the rejection of multipath. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 06, 1977
Accession Number
ADA045941

Entities

People

  • A. R. Paradis

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acquisition
  • Aircraft Antennas
  • Aircrafts
  • Altitude
  • Aspect Angle
  • Beacons
  • Collision Avoidance
  • Collision Avoidance Systems
  • Data Acquisition
  • Flight Paths
  • Frequency
  • Grazing Angles
  • Instrumentation
  • L Band
  • Power Levels
  • Scattering
  • Surface Roughness

Readers

  • Aviation Safety and Air Traffic Management
  • Radar Systems Engineering.