GEO-SPIN/IPS-2 Improvements for Precision Gravity Measurement
Abstract
Improved accuracies must be maintained with the system operated along any trajectory in a ground vehicle or helicopter. The most important performance parameter is deflection of the vertical. This paper reports the results of the gravity improvement study. It addresses hardware, software and operational procedure aspects. Supporting data are provided for the assessment of current performance. On-line and off-line data reduction and analysis are considered. The rather interesting application of both Kalman filtering (using data up to a current point) and Kalman smoothing (total traverse data processing) is covered and its effectiveness evaluated with supporting computer simulations for the gravity measurement problem. Use of both ZUPT and control point data is considered in the smoothing process. By-products of gravity measurement accuracy improvement are better positioning performance and operational flexibility. These topics are also touched upon in this paper. Hence, it should be of widespread interest to the surveying and geodesy communities.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 05, 1981
- Accession Number
- ADA103407
Entities
People
- Gary W. Adams
- Michael J. Hadfield
Organizations
- Honeywell International, Inc.