Performance characteristics of a submarine panoramic infrared imaging sensor

J. M. Nichols; J. R. Waterman; Raghu Menon; John Devitt

doi:10.1117/12.850254

3 May 2010 Performance characteristics of a submarine panoramic infrared imaging sensor

J. M. Nichols, J. R. Waterman, Raghu Menon, John Devitt

Proceedings Volume 7660, Infrared Technology and Applications XXXVI; 766005 (2010) https://doi.org/10.1117/12.850254
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

A high-resolution mid-wave infrared panoramic periscope sensor system has been developed. The sensor includes a catadioptric optical system that provides a 360° horizontal azimuth by -10° to +30° elevation field of view without requiring moving components (e.g. rotating mirrors). The focal plane is a 2048 x 2048, 15μm pitch InSb detector operating at 80K. An on-board thermo-electric reference source allows for real-time nonuniformity correction using the two-point correction method. The entire system (detector-dewar assembly, cooler, electronics and optics) is packaged to fit in an 8" high, 6.5" diameter volume. This work describes both the system optics and electronics and presents sample imagery. We also discuss the sensor's radiometric performance, quantified by the NEDT, as a function of key system parameters. The ability of the system to resolve targets as a function of imaged spatial frequency is also presented.

Citation Download Citation

J. M. Nichols, J. R. Waterman, Raghu Menon, and John Devitt "Performance characteristics of a submarine panoramic infrared imaging sensor", Proc. SPIE 7660, Infrared Technology and Applications XXXVI, 766005 (3 May 2010); https://doi.org/10.1117/12.850254

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KEYWORDS

Sensors

Electronics

Cameras

Imaging systems

Modulation transfer functions

Nonuniformity corrections

Panoramic photography

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