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Proceedings Paper

Relative performance studies for focal-plane arrays
Author(s): Kevin St. John Murphy; Derek J. Bradley; Peter N. J. Dennis
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Paper Abstract

Recent years have seen increasing interest in PtSi infrared imaging systems. The performance and capabilities of a 5122 element PtSi imager have been assessed, and various figures of merit describing system linearity, spatial uniformity, and noise equivalent temperature are presented and contrasted with similar performance figures obtained from a 3-5 micrometers CMT system. The superior spatial uniformity and poorer thermal sensitivity of the PtSi imager is contrasted with the CMT system which generally exhibits poorer spatial uniformity but significantly higher thermal resolution. Trade-off studies between fixed-pattern noise and thermal resolution are discussed in terms of overall system performance for both imagers.

Paper Details

Date Published: 1 September 1991
PDF: 8 pages
Proc. SPIE 1488, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing II, (1 September 1991); doi: 10.1117/12.45800
Show Author Affiliations
Kevin St. John Murphy, Royal Signals and Radar Establishment (United Kingdom)
Derek J. Bradley, Royal Signals and Radar Establishment (United Kingdom)
Peter N. J. Dennis, Royal Signals and Radar Establishment (United Kingdom)


Published in SPIE Proceedings Vol. 1488:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing II
Gerald C. Holst, Editor(s)

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