Development of an Airborne Positioning System

Abstract

A joint research project between the University of Newcastle upon Tyne and City University is developing a prototype system for using kinematic GPS techniques to derive the exterior orientation of an oblique sensor without the use of co-ordinated ground control. This paper presents an overview of the techniques employed in deriving GPS antenna co-ordinates and their subsequent use in finding the required orientations. The latest results and future plans are presented and discussed.

Georeferenced four-dimensional virtual environments: principles and applications

“…This system is still completing calibration and field tests on measurements of single point, line and area objects ( Figure 2). Positioning targets using a conventional camera and a more robust navigation instrument such as the Ashtech 3DF system from a fixed wing aircraft can produce positional accuracies of 50 cm (Corbett & Short, 1993). In this study, the much lower cost aerial videometry system described has achieved accuracies within the 10±20 m range specified, making a useful order of precision available to a wider range of users.…”