Simulation and data analysis of infrared ocean clutter at grazing angles

Philip J. Davis; Erik P. Krumrey; Robert Myers

doi:10.1117/12.151057

13 August 1993 Simulation and data analysis of infrared ocean clutter at grazing angles

Philip J. Davis, Erik P. Krumrey, Robert Myers

Proceedings Volume 1967, Characterization, Propagation, and Simulation of Sources and Backgrounds III; (1993) https://doi.org/10.1117/12.151057
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

Ocean clutter in infrared images at low grazing angles is of interest for both airborne and shipborne detection of low flying targets over the ocean. In this paper a 2-D simulation model for infrared cutter at low grazing angle and data analysis results of three IRAMMP ocean tests are presented. The data analyzed correspond to IRAMMP calibrated dual band (mid-wave and long-wave) IR images. The observed ocean clutter is characterized by vertical profiles of the mean and variance, single channel power spectra, and the dual channel coherence as a function of environmental conditions and sensor geometry. The measured variance in radiance typically has a rapid increase with increasing look down angle below the horizon. Preliminary simulation predictions are consistent with data analysis results.

Citation Download Citation

Philip J. Davis, Erik P. Krumrey, and Robert Myers "Simulation and data analysis of infrared ocean clutter at grazing angles", Proc. SPIE 1967, Characterization, Propagation, and Simulation of Sources and Backgrounds III, (13 August 1993); https://doi.org/10.1117/12.151057

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