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Proceedings Paper

Improving geolocation and spatial accuracies with the modular integrated avionics group (MIAG)
Author(s): Einar Johnson; Keith Souter
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Paper Abstract

The modular integrated avionics group (MIAG) is a single unit approach to combining position, inertial and baro-altitude/air data sensors to provide optimized navigation, guidance and control performance. Lear Astronics Corporation is currently working within the navigation community to upgrade existing MIAG performance with precise GPS positioning mechanization tightly integrated with inertial, baro and other sensors. Among the immediate benefits are the following: (1) accurate target location in dynamic conditions; (2) autonomous launch and recovery using airborne avionics only; (3) precise flight path guidance; and (4) improved aircraft and payload stability information. This paper will focus on the impact of using the MIAG with its multimode navigation accuracies on the UAV targeting mission. Gimbaled electro-optical sensors mounted on a UAV can be used to determine ground coordinates of a target at the center of the field of view by a series of vector rotation and scaling computations. The accuracy of the computed target coordinates is dependent on knowing the UAV position and the UAV-to-target offset computation. Astronics performed a series of simulations to evaluate the effects that the improved angular and position data available from the MIAG have on target coordinate accuracy.

Paper Details

Date Published: 27 May 1996
PDF: 10 pages
Proc. SPIE 2738, Navigation and Control Technologies for Unmanned Systems, (27 May 1996);
Show Author Affiliations
Einar Johnson, Lear Astronics Corp. (United States)
Keith Souter, Lear Astronics Corp. (United States)

Published in SPIE Proceedings Vol. 2738:
Navigation and Control Technologies for Unmanned Systems
Scott A. Speigle, Editor(s)

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