Some Tactical Algorithms for Spherical Geometry

Abstract

This report presents two great circle navigation algorithms, a closest point of approach algorithm and intercept algorithm. It also presents an implementation program for the algorithms that is written in the BASIC language for an IBM PC. Instead of using classical spherical geometry or the general spherical triangle, these algorithms incorporate rectangular coordinates and vectors on the surface of the spherical. The intent of the report is to provide algorithms for spherical earth models that can be used for situations in which flat earth models are not appropriate, but that do not require the sophistication of rotating earth models.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1986
Accession Number
ADA170615

Entities

People

  • Rex H. Shudde

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • C4I

DTIC Thesaurus Topics

  • Abstracts
  • Algorithms
  • Cartesian Coordinates
  • Computer Programs
  • Coordinate Systems
  • Earth Models
  • Equations
  • Geodesy
  • Geometry
  • Language
  • Latitude
  • Longitude
  • Models
  • Naval Operations
  • Navigation
  • Quadrants
  • Triangles

Readers

  • Approximation Theory.
  • Computational Modeling and Simulation
  • Space Exploration and Orbital Mechanics.