AN ESTIMATE OF POSITIONAL, ANGULAR, AND VELOCITY UNCERTAINTIES AS DETERMINED FROM TRIPLE THEODOLITE WIND SOUNDINGS.
Final rept. 15 Feb 68-15 Mar 69,
ATLANTIC RESEARCH CORP COSTA MESA CALIF MISSILE SYSTEMS DIV
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The data from 6,358 triple theodolite measurements of pilot balloon position have been reduced, and an estimate of the positional and angular uncertainties determined. The technique employed consists of a least-squares positional solution of the balloon position, which is shown to result in a different balloon position and angular variance than a least-squares-angular solution. The relative merits of the two solutions are discussed, as are advanced techniques of estimating balloon velocity. The balloon positional uncertainties and theodolite angular uncertainties defined by the least-squares positional solution are shown to have other than a Gaussian distribution, and their dependence upon balloon altitude and velocity is discussed. Author
- Atmospheric Physics