Accession Number : AD0776385

Title :   SAPGOA - A Computer Program for the Simultaneous Adjustment of Photogrammetric and Geodetic Observations.

Descriptive Note : Civil engineering studies,

Corporate Author : ILLINOIS UNIV URBANA DEPT OF CIVIL ENGINEERING

Personal Author(s) : Wong,K. W.

Report Date : JAN 1974

Pagination or Media Count : 145

Abstract : The primary function of the program SAPGOA is to perform analytical aerotriangulation by the method of simultaneous weighted least-squares adjustment. It has the unique capability of using geodetic measurements as controls in the aerotriangulation solution. The program can accept as input the following types of observations: (1) photogrammetric observations: rectangular photo coordinates corrected for lens and film distortions, exterior orientation parameters of each photo, aircraft altitude above ground at each exposure, and ground controls in a rectangular ground coordinate system; and (2) geodetic observations: straight-line distances, geodetic azimuths, Laplace azimuths, horizontal angles, elevation differences, latitudes, longitudes and elevations. The geodetic measurements do not have to form an integrated geodetic network. (Author)

Descriptors :   *Photogrammetry, *Geodesy, *Triangulation, *Computer programs, Least squares method, Standard deviation, Error analysis

Subject Categories : Geodesy
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE