Background Suppression In Double-Beam Interferometry Using Tailored Modulation Transfer Functions

T. F. Zehnpfennig; G. A. Vanasse

doi:10.1117/12.956766

12 December 1978 Background Suppression In Double-Beam Interferometry Using Tailored Modulation Transfer Functions

T. F. Zehnpfennig, G. A. Vanasse

Proceedings Volume 0156, Modern Utilization of Infrared Technology IV; (1978) https://doi.org/10.1117/12.956766
Event: 22nd Annual Technical Symposium, 1978, San Diego, United States

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.

Citation Download Citation

T. F. Zehnpfennig and G. A. Vanasse "Background Suppression In Double-Beam Interferometry Using Tailored Modulation Transfer Functions", Proc. SPIE 0156, Modern Utilization of Infrared Technology IV, (12 December 1978); https://doi.org/10.1117/12.956766

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