Atmospheric Models For Over-Ocean Propagation Loss

Abstract

Humidity over the ocean tends to be higher than over land, and long-range links at frequencies above 10 GHz may experience large propagation loss due to atmospheric absorption. When high link reliability is required, the log-normal assumption used to estimate power margins from the loss mean and standard deviation is not accurate. To solve these problems, a set of atmospheric models has been developed from radiosonde profiles collected along the Atlantic coast of the US. The large quantity of radiosonde data available was used to identify radiosonde profiles that occur with specified probabilities at different times of year and locations. The result was used to estimate high-reliability SHF/EHF air-to-surface radio link performance in a maritime environment.

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Document Details

Document Type
Technical Report
Publication Date
Aug 24, 2015
Accession Number
AD1034699

Entities

People

  • Bruce F. Mcguffin

Organizations

  • MIT Lincoln Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Air Pressure
  • Altitude
  • Atmospheric Attenuation
  • Dew Point
  • Environment
  • Frequency
  • High Reliability
  • Humidity
  • Losses
  • Measurement
  • Partial Pressure
  • Radio Links
  • Refractive Index
  • Reliability
  • United States
  • Water Vapor
  • Weather Stations

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology
  • Computational Modeling and Simulation
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering