Accession Number : ADA184750
Title : Balloon Track Data Analysis.
Descriptive Note : Final rept. 3 Jul 85-31 Mar 87,
Corporate Author : BEDFORD RESEARCH ASSOCIATES MA
Personal Author(s) : Burkhardt,P ; Fowler,R ; Moses,M
PDF Url : ADA184750
Report Date : 31 Mar 1987
Pagination or Media Count : 39
Abstract : The primary goal of this program was to design a post-flight data processing system to measure gravity to 1 mgal accuracy. The purpose was to analyze data from balloons flights and to assess the feasibility of measuring gravity to this accuracy. Emphasis during the effort would be on determining the relative contribution of the various error sources to the overall error budget. Primary emphasis was on assessing the performance of GPS as the main tracking system. To facilitate this assessment, a direct comparison of the accuracies in determining gondola position, velocity, and acceleration will be made between GPS tracking, radar tracking, and tracking performance. It is anticipated that using a differential-GPS approach would yield position, velocity, and acceleration accuracies which are significantly better than ground-based radar. The proposed method of estimating gravity based on gravimeter, gondola package tracking data, and inertial motion sensing package data involves an integrated high-order Kalman filter approach.
Descriptors : *GRAVIMETRY, *COMPUTER PROGRAMS, *BALLOONS, HIGH ALTITUDE, SYSTEMS ANALYSIS, KALMAN FILTERING, GLOBAL POSITIONING SYSTEM, RADAR TRACKING, GONDOLAS, STANDARDS
Subject Categories : Geomagnetism
Computer Programming and Software
Distribution Statement : APPROVED FOR PUBLIC RELEASE