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Proceedings Paper

Signal attenuation dependence on a segmented window structure
Author(s): Michael Bastow; Daniel A. Saylor; Carl V. Smith; Debra Wymer
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Paper Abstract

One requirement of an endoatmospheric interceptor window system is to allow the seeker to collect sufficient energy for object detection. The capability to collect energy can be significantly affected by the design of the wind and its accompanying support structure. The Segmented Window Analysis Program (SWAP) has been developed and validated as a flexible computer program for use in determining the transmission of various segmented window designs. Forty-six window configurations consisting of various window materials and structure designs were used in an experimental validation of the SWAP code. A direct comparison of over 1200 data points was made between the experimental data and the SWAP predictions, with an average difference of 1.68 percent. The algorithms were then exercised over a larger range of inputs to parameterize the performance of a generic window design as a function of the established variables. In general segmented window designs can be optimized by using high index of refraction materials, minimizing support width and minimizing support thickness. While some factors have a greater impact on the performance of the window system than others, an overall design optimized for throughput must be based upon a particular sensor's operating conditions and requirements. Specifically, we have shown that there are conditions where a wide range of window thicknesses and segment sizes perform nearly identically. Other issues, such as thermal, mechanical, and imaging requirements, while not considered in this study, must be included in the final design.

Paper Details

Date Published: 28 August 1992
PDF: 15 pages
Proc. SPIE 1693, Surveillance Technologies II, (28 August 1992); doi: 10.1117/12.138086
Show Author Affiliations
Michael Bastow, Automated Sciences Group, Inc. (United States)
Daniel A. Saylor, Automated Sciences Group, Inc. (United States)
Carl V. Smith, Automated Sciences Group, Inc. (United States)
Debra Wymer, U.S. Army Strategic Defense Command (United States)

Published in SPIE Proceedings Vol. 1693:
Surveillance Technologies II
Sankaran Gowrinathan; James F. Shanley, Editor(s)

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