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Proceedings Paper

A Low-Cost Infrared Seeker (LCIRS) For Terminal Homing
Author(s): A. J. Froelich
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Paper Abstract

Teledyne Brown Engineering has developed a low-cost infrared seeker (LCIRS) for manportable terminal homing rounds. In order to minimize production costs, the development emphasized design simplicity and inexpensive manufacturing processes. LCIRS engagement parameters represent a short-range round launched over a land combat vehicle. The seeker optical system has an aerodynamically spun dome that holds a roof mirror on the inside cylindrical axis. This provides a rotary field scan for a strapdown primary aspheric mirror and detector array. The two-color thermoelectrically cooled array uses lead sulfide and lead selenide detector elements. A coated germanium anti-solar spectral filter with a passband that cuts on at 2.3 μm is employed. Replicated optics were used to minimize costs. Considerable attention was devoted to the design of signal processing electronics for the LCIRS. Multichannel preamplifiers were employed. Complete signal processing electronics were developed, fabricated, and tested. Design requirements, design parameters, optical system characteristics, and system performance are presented.

Paper Details

Date Published: 23 December 1980
PDF: 18 pages
Proc. SPIE 0256, Infrared Systems, (23 December 1980); doi: 10.1117/12.959582
Show Author Affiliations
A. J. Froelich, Teledyne Brown Engineering (United States)


Published in SPIE Proceedings Vol. 0256:
Infrared Systems
E. E. Sanmann, Editor(s)

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