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Proceedings Paper

Spectral Discrimination For Long Range Search/Track Infrared Systems
Author(s): Louis A. Williams Jr.
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Paper Abstract

One of the areas where future improvements are anticipated in IR search/track systems is in longer range performance based on improved clutter rejection techniques. These long range search/track (LRST) IR systems will be needed in the future to counter advanced threats which are now in the early stages of development. In order to achieve longer range performance, system threshold sensitivity must be increased. Without improved clutter rejection techniques, increasing the system sensitivity will result in an unacceptable false alarm rate due to background clutter. The problem specifically addressed in this paper is clutter rejection techniques for LRST systems used to detect advanced threats targeted on surface ships. The techniques are applicable to other scenarios with minor modifications. Spectral discrimination must be added to classical spatial and temporal discrimination in order to reduce the false alarm rate against sunglint and operate at a low threshold setting in heavy clutter regions. Both two and three color systems have been evaluated and the design of a two-color system studied in detail.

Paper Details

Date Published: 7 December 1981
PDF: 9 pages
Proc. SPIE 0292, Processing of Images and Data from Optical Sensors, (7 December 1981); doi: 10.1117/12.932835
Show Author Affiliations
Louis A. Williams Jr., Cincinnati Electronics Corporation (United States)

Published in SPIE Proceedings Vol. 0292:
Processing of Images and Data from Optical Sensors
William H. Carter, Editor(s)

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