Accession Number:

AD0271439

Title:

PHOTOGRAMMETRIC FLASH TRIANGULATION FOR CORPS OF ENGINEERS FIELD USE

Descriptive Note:

Corporate Author:

GEONAUTICS INC WASHINGTON D C

Personal Author(s):

Report Date:

1961-08-15

Pagination or Media Count:

1.0

Abstract:

METRY, Arcas, Phoenix. Error analysis was continued of the proposed photogrammetric flash triangulation for Army use in extending geodetic control over short and medium ranges. The proposed field instrumentation system under consideration is based on the use of portable cameras and adjustable equatorial mounts for guiding on the star background during the observations. The main advantage is that the field operations do not require the times of the occurrence of the flashes or the photographic exposures. Analytical methods are developed for a rigorous least squares adjustment of redundant observational data. The results of an error analysis of a redundant hypothetical configuration using two known stations, five unknowns and two flash points are then presented to provide an indication of the expected accuracy of the observation techniques. Conclusions and recommendations are presented for future evaluation of the proposed flash triangulation system. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE