A RADAR RANGE-HEIGHT CHART REPRESENTING REFRACTED RAYS AS STRAIGHT LINES,

Abstract

A radar range-height chart has been devised using figures recently computed by Lincoln Lab oratory for refraction in a cool-weather atmos phere. These figures differ from the heretofore commonly accepted 4/3-earth-curvature assumption, which was seriously in error at long ranges. This chart has been so designed that ray paths of all elevation angles are presented as straight lines, although the actual rays curve in a manner which varies with height. This is accom plished at the expense of a non-linear height scale. The chart covers the range interval 0 350 miles and the height interval 0-100,000 feet. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1958
Accession Number
AD0426678

Entities

People

  • F.d. Clarke
  • L.v. Blake

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Altitude
  • Curvature
  • Curves (Geometry)
  • Differential Geometry
  • Elevation
  • Geometric Forms
  • Geometry
  • Intervals
  • Lines (Geometry)
  • Refraction

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