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Proceedings Paper

Background Suppression In Double-Beam Interferometry Using Tailored Modulation Transfer Functions
Author(s): T. F. Zehnpfennig; G. A. Vanasse
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Paper Abstract

An optical background suppression technique is described in which the lower spatial frequencies of a background field are effectively suppressed, thereby enhancing the detectability of point-like targets. The technique is particularly applicable for use in image-forming double-beam interferometers in which the individual detector elements are matched to the diffraction-limited resolution of the instrument. The technique utilizes pairs of optical systems whose modulation transfer functions are suitably matched and a number of these pairs are described.

Paper Details

Date Published: 12 December 1978
PDF: 6 pages
Proc. SPIE 0156, Modern Utilization of Infrared Technology IV, (12 December 1978); doi: 10.1117/12.956766
Show Author Affiliations
T. F. Zehnpfennig, Visidyne, Inc. (United States)
G. A. Vanasse, Air Force Geophysics Laboratory (United States)


Published in SPIE Proceedings Vol. 0156:
Modern Utilization of Infrared Technology IV
Irving J. Spiro, Editor(s)

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