Large-aperture staring systems

Piet B. W. Schwering; Gerrit de Leeuw; Peter J. Fritz

doi:10.1117/12.188674

17 October 1994 Large-aperture staring systems

Piet B. W. Schwering, Gerrit de Leeuw, Peter J. Fritz

Proceedings Volume 2269, Infrared Technology XX; (1994) https://doi.org/10.1117/12.188674
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

For long range detection of low observable targets at sea infrared search and track systems are needed with high sensitivity. This goal can be achieved by integrating two-dimensional focal plane arrays into large optics. We have performed tests with such an integrated system in the 3 - 5 micrometers band, by using an InSb array with a 30 cm aperture. Besides this infrared band a scanning 10 micrometers detector is also placed in the optics for reference purposes. With the high frame rates (25 Hz) of present day FPAs we also have a powerful tool to reject background clutter (by temporal analysis). With this system we performed observations of atmospheric effects such as scintillation, under different atmospheric conditions. The gathered data were analyzed in a preliminary way, and both bands are compared.

Citation Download Citation

Piet B. W. Schwering, Gerrit de Leeuw, and Peter J. Fritz "Large-aperture staring systems", Proc. SPIE 2269, Infrared Technology XX, (17 October 1994); https://doi.org/10.1117/12.188674

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