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Proceedings Paper

Effects of phasing on MRT target visibility
Author(s): Gerald C. Holst
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Paper Abstract

MRT target visibility is affected by the relative phase between the target location and the sampling lattice of thermal imaging systems. Undersampled systems such as staring arrays are particularly susceptible to phasing effects. For input spatial frequencies which range from 0.6 to 0.9 times the Nyquist frequency, bar fidelity is lost and the MRT is increased at these spatial frequencies. In apparent contradiction to Nyquist theory, it is possible to perceive MRT targets whose spatial frequencies are between Nyquist and 1.1 times Nyquist frequency.

Paper Details

Date Published: 1 September 1991
PDF: 9 pages
Proc. SPIE 1488, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing II, (1 September 1991); doi: 10.1117/12.45828
Show Author Affiliations
Gerald C. Holst, Martin Marietta Corp. (United States)


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

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