Different aspects of backgrounds in various spectral bands

Ami Ben-Shalom; Adam D. Devir; Erez N. Ribak; Eli T. Talmor; Leslie Salem Balfour; Nahum Brandman

doi:10.1117/12.45766

1 July 1991 Different aspects of backgrounds in various spectral bands

Ami Ben-Shalom, Adam D. Devir, Erez N. Ribak, Eli T. Talmor, Leslie Salem Balfour, Nahum Brandman

Proceedings Volume 1486, Characterization, Propagation, and Simulation of Sources and Backgrounds; (1991) https://doi.org/10.1117/12.45766
Event: Orlando '91, 1991, Orlando, FL, United States

Abstract

Both the theoretical and the experimental problems of backgrounds are examined. The authors show why the current definitions of correlation length should be used with care, with attention paid to the intensity histogram of a scene. Different effects of the sub-pixel features in a measured scene on the clutter for imaging and scanning systems are also explained. The two- dimensional polarization of a scene is measured and found to compare favorably with the theoretical predictions. Finally, the authors show how to simulate backgrounds whose power spectrum is given, together with constraints on the image proper. This is achieved by iteratively transforming between the image plane and its Fourier conjugate, while imposing the appropriate constraints in both planes.

Citation Download Citation

Ami Ben-Shalom, Adam D. Devir, Erez N. Ribak, Eli T. Talmor, Leslie Salem Balfour, and Nahum Brandman "Different aspects of backgrounds in various spectral bands", Proc. SPIE 1486, Characterization, Propagation, and Simulation of Sources and Backgrounds, (1 July 1991); https://doi.org/10.1117/12.45766

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