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Proceedings Paper

A comparison of inertial line-of-sight stabilization techniques using mirrors
Author(s): James M Hilkert
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Paper Abstract

Mirrors are commonly used to stabilize images and point the line-of-sight (LOS) for a variety of electro-optical applications such as surveillance, target tracking and laser pointing. However, the law of reflection introduces an inherent 2:1 relationship in the axis perpendicular to the LOS that must be addressed. Because of this relationship, simply stabilizing the mirror in inertial space will not stabilize the LOS. Also, the 2:1 relationship renders the mirror stabilization configuration particularly susceptible to base motions. Presented are several different techniques that use a combination of mechanisms and inertial / relative-motion sensors that can be used to deal with these limitations. The techniques are described along with a discussion of the characteristics and tradeoffs associated with each.

Paper Details

Date Published: 27 July 2004
PDF: 10 pages
Proc. SPIE 5430, Acquisition, Tracking, and Pointing XVIII, (27 July 2004); doi: 10.1117/12.541808
Show Author Affiliations
James M Hilkert, Alpha-Theta Technologies (United States)

Published in SPIE Proceedings Vol. 5430:
Acquisition, Tracking, and Pointing XVIII
Michael K. Masten; Larry A. Stockum, Editor(s)

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