AN ESTIMATE OF POSITIONAL, ANGULAR, AND VELOCITY UNCERTAINTIES AS DETERMINED FROM TRIPLE THEODOLITE WIND SOUNDINGS.
Abstract
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 15, 1969
- Accession Number
- AD0688916
Entities
People
- Robert L. Ammons
Organizations
- ARCO