Wideband Propagation Measurements in the Presence of Forests

Abstract

This report describes the conduct and provides representative analysis of the results of an experimental program designed to measure the transmission characteristics of UHF radio channels in a forested environment. The program described is the initial phase of what may become a much larger effort, and the emphasis here is to test the experimental procedures, equipment, and analysis technique for their appropriateness to the long-range objectives, and to gain some preliminary insight to the propagation parameters important for wideband and spread-spectrum systems. The test instrumentation used was a pseudo-noise channel probe with 300-MHz bandwidth. It provided a direct representation of the channel impulse response which then was recorded in both analog and digital formats. The analyses of these recordings now provide measures of overall path loss, multipath delay spreads, and derived spectral responses. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1982
Accession Number
ADA113698

Entities

People

  • G. A. Hufford
  • J. E. Adams
  • L. E. Pratt
  • R. W. Hubbard
  • S. J. Paulson

Organizations

  • Institute for Telecommunication Sciences

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bandwidth
  • Communication Systems
  • Data Storage Systems
  • Databases
  • Detectors
  • Diffraction
  • Digital Data
  • Electromagnetic Wave Propagation
  • Frequency
  • Fresnel Zones
  • Modulation
  • Radio Equipment
  • Radio Frequency
  • Radio Transmission
  • Recording Systems
  • Repetition Rate
  • Spread Spectrum

Readers

  • Radar Systems Engineering.
  • Radio communications and signal processing.
  • Systems Analysis and Design