Gravity Vector Determination from Inertial and Auxiliary Data and Potential Utilization of Generated Vector Component Information
Abstract
This paper presents a symbiosis of pertinent in-house research involving inertial technology, mathematics, and physical geodesy, conducted in support of the Defense Mapping Agency, the U.S. Air Force, and the U.S. Army under consideration of potential utilization of generated data. Following an introduction, it first discusses the determination of gravity anomalies and the more detailed derivation of single horizontal channel deflection errors in semi- flat terrain and provides present and improved future accuracy estimates. Secondly, it presents a Wiener-type optimal solution for deflections of the vertical under application of the collocation method in physical geodesy with prior second order gyro bias removal. Thirdly, it outlines an advanced deflection estimation method under consideration of horizontal channel and gyro interactions and its modification in the case of strongly mountainous terrain. Fourthly, it summarizes the development of a partially associated optimal interpolation method for gravity anomalies and deflections of the vertical in mountainous terrain. Fifthly, it addresses potential civil and military applications including the construction of gravity anomaly and deflection networks from data obtained by multiple surveys, consideration of gravity vector data in geodetic network optimization, upward continuation of gravity anomalies and deflections of the vertical, and a gravity-programmed inertial positioning system. Sixthly, it comments on the need of a gradiometer-aided inertial system for rapid, high accuracy deflection determination, subterraneous mass detection, and the differential transformations between Cartesian and natural or astronomic coordinates.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 18, 1982
- Accession Number
- ADA116819
Entities
People
- H. B. Von Luetzow
Organizations
- Geospatial Research Laboratory