RADIO RAY (RADAR) RANGE-HEIGHT-ANGLE CHARTS

Abstract

Charts showing the relationship of range, height, and initial elevation angle of the rays from an earth-based antenna have been machine-computed and machine-drawn. The refracted (curved) ray paths are represented on the charts as straight lines, which facilitates plotting radio and radar vertical-plane coverage diagrams. The negative-exponential model of tropospheric refractivity has been assumed, although the method permits any model representable by a piecewise-continuous function to be used. Charts have been made for various systems of range, height, and angle units with equal and unequal range and height scales, with both linear and nonlinear scales, and for both small and large maximum range and height.

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Document Details

Document Type
Technical Report
Publication Date
Jan 22, 1968
Accession Number
AD0665018

Entities

People

  • Lamont V. Blake

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Altitude
  • Atmospheric Refraction
  • Construction
  • Drafting
  • Elevation
  • Equations
  • Graphic Arts
  • Low Altitude
  • Low Angles
  • Military Research
  • Models
  • Plotting
  • Radar
  • Refraction
  • Refractive Index
  • Sea Level

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Mathematical Modeling and Probability Theory.
  • Radar Systems Engineering.