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Proceedings Paper

Utilizing circular scanning in the CZMIL system
Author(s): Eran Fuchs; Abhinav Mathur
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Paper Abstract

In pursuit of increased reliability and improved signal levels, we employ a scanning approach that supports the high frequency acquisition requirements of the system while utilizing a large aperture receiver. A continuously rotating circular scanner was developed using direct inductance drives to rotate a Fresnel prism, acting as synchronized transmitter-receiver optical element with a fixed incident angle to the sea surface. Circular scanning introduces challenges in evaluating the system's coverage. By its nature, a circular scanning pattern introduces non-uniformity. Unlike galvo-based scanners roll and pitch compensation is practically impossible for a large mechanism, therefore careful planning is required to ensure continuous coverage under realistic operational conditions. Selection of optimal operation parameters is discussed as well as different ways to evaluate surface coverage in different operation modes.

Paper Details

Date Published: 12 May 2010
PDF: 10 pages
Proc. SPIE 7695, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XVI, 76950W (12 May 2010); doi: 10.1117/12.851936
Show Author Affiliations
Eran Fuchs, Optech International, Inc. (United States)
Abhinav Mathur, Optech International, Inc. (United States)

Published in SPIE Proceedings Vol. 7695:
Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XVI
Sylvia S. Shen; Paul E. Lewis, Editor(s)

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