Staring infrared panoramic sensor (SIRPS) for surveillance and threat detection

Steven R. Barrios; Raymond S. Kwok; James D. McMullen; James Ralph Teague

doi:10.1117/12.280377

13 August 1997 Staring infrared panoramic sensor (SIRPS) for surveillance and threat detection

Steven R. Barrios, Raymond S. Kwok, James D. McMullen, James Ralph Teague

Proceedings Volume 3061, Infrared Technology and Applications XXIII; (1997) https://doi.org/10.1117/12.280377
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

A Rockwell staring infrared panoramic sensor (SIRPS) system will support the naval surface ship combatant against various threats such as anti-ship cruise missiles, sea skimming missiles, and various POI (points of interest) over the horizon. An ultra wide-angle shipboard electro-optical system that provides continuous 360 degree area surveillance can be deployed as a radar adjunct to detect threats where current radar systems have difficulty against low flying targets with multi-path reflection and sea surface clutter. The sensor provides detection of nonresolved targets over a panoramic 360 degree horizon field of view, and operates in a continuously staring mode providing positional and coordinate mapping of potential threats. Full azimuthal coverage with high angle resolution is achieved by using a distributed array of only four 640 by 480 HgCdTe focal plane arrays (FPAs) responsive over the mid-wavelength infrared (MWIR) waveband of 3.8 to 4.8 microns. A spectral band of 3.8 to 4.2 microns may instead by incorporated by using a 4.2 micron cutoff detector material. Rockwell has produced 4.2 cutoff FPAs for other applications. Final selection of these detection wavebands will optimize system performance for various potential target's exhaust spectral content. Current analysis has been done for the 3.8 to 4.8 micron waveband for preliminary system trades. Considerable cost reduction can be accomplished through the use of split-aperture optics to diplex two different azimuthal fields of view onto separate halves of each FPA. Optical diplexing reduces by one-half the required number of FPA, dewar and cryo-cooler subassemblies.

Citation Download Citation

Steven R. Barrios, Raymond S. Kwok, James D. McMullen, and James Ralph Teague "Staring infrared panoramic sensor (SIRPS) for surveillance and threat detection", Proc. SPIE 3061, Infrared Technology and Applications XXIII, (13 August 1997); https://doi.org/10.1117/12.280377

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