A METHOD FOR PREDICTING APPARENT ELEVATION ANGLE FOR A TROPOSPHERIC TARGET FROM SPECIFIED VALUES OF GEOMETRICAL ELEVATION ANGLE AND HEIGHTF

Abstract

A method is presented for calculating the apparent elevation angle to be expected for a tropospheric target for specified values of geometrical elevation angle and height. Assumptions are made that the troposphere is horizontally homogeneous and that the index of refraction decreases monotonically with height above a spherical earth. The method, which was devised as a tool for tracking system error analysis, allows for a direct prediction of apparent elevation angle for a given target position and for a direct application of the ray-tracing formula for computing the corresponding radio range. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1963
Accession Number
AD0422333

Entities

People

  • Paul Milnarich Jr.

Tags

DTIC Thesaurus Topics

  • Elevation
  • Error Analysis
  • Errors
  • Ray Tracing
  • Refraction
  • Refractive Index
  • Troposphere

Fields of Study

  • Environmental science

Readers

  • Radar Systems Engineering.
  • Wave Propagation and Nonlinear Chaotic Dynamics.