THE PRECISE DETERMINATION OF THE POSITION OF A POINT IN SPACE, FROM PHOTOGRAPHS TAKEN AT TWO GROUND STATIONS

Abstract

Simultaneous photographs are taken, of the same aerial point, by two cameras on the ground. Stars also are photographed, on some or all of the plates. Here the mathematical procedure is developed and described for finding accurately the position of the aerial point with respect to a set of terrestrial axes. The formulae are designed to expedite the numerical calculations as much as possible, consistently with an accuracy of the order of a second of arc; i.e. , of better than a foot at 50,000 feet. Another less accurate procedure is also described that does not involve star-images on all of the plates. The present discussion is applicable to the case where both camera axes are vertical. Some of the formulae are applicable also to oblique camera axes.

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Document Details

Document Type
Technical Report
Publication Date
Apr 13, 1942
Accession Number
AD0704864

Entities

People

  • Theodore E. Sterne

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Pressure
  • Aircrafts
  • Atmospheric Refraction
  • Cameras
  • Climate Change
  • Dead Reckoning
  • Equations
  • Images
  • Latitude
  • Measurement
  • Orientation (Direction)
  • Photographic Images
  • Photographs
  • Refraction
  • Refractive Index
  • Rotation

Fields of Study

  • Geology
  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Computer Vision.
  • Fluid Dynamics.

Technology Areas

  • Space