SEEFAR: An Improved Model for Producing Line-of-Sight Maps

Abstract

This report describes an improved model for producing line-of-sight maps. Many models determine whether a target is within view by drawing a terrain profile between observer and target and examining it to see if it interferes with line of sight; this requires generating a completely new profile for each target position. The new model avoids this time-consuming profile for each target position. The new model avoids this time-consuming profile generation by dynamically recording the characteristics of a 'running horizon' as computations are made for points further away from the observer. For each target point, a check is made to determine whether the target is behind the 'horizon'. This new approach results in a dramatic savings in both storage and computing time requirements. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1980
Accession Number
ADA091855

Entities

People

  • Barbara D. Broome

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Cartesian Coordinates
  • Computations
  • Computer Programming
  • Computer Programs
  • Computers
  • Crossings
  • Dynamic Programming
  • Elevation
  • Equations
  • Grids
  • Line Of Sight
  • Multiple Targets
  • Observers
  • Procedures (Computers)
  • Targets
  • Urban Areas

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Geodesy
  • Sensor Fusion and Tracking Systems.