SYNSEA code for generating synthetic IR imagery of sea backgrounds

Bruce W. Ball

doi:10.1117/12.137844

21 September 1992 SYNSEA code for generating synthetic IR imagery of sea backgrounds

Bruce W. Ball

Proceedings Volume 1687, Characterization, Propagation, and Simulation of Sources and Backgrounds II; (1992) https://doi.org/10.1117/12.137844
Event: Aerospace Sensing, 1992, Orlando, FL, United States

Abstract

The emitted and reflected contributions to infrared sea radiance are affected by factors such as water temperature, prevailing weather conditions, wave structure, and viewing geometry. These factors are all addressed in the computer code SYNSEA which generates synthetic IR sea background imagery. In generating a radiance value for a scene pixel, SYNSEA calculates the radiance contributions for a distribution of surface orientations, weights these contributions according to the probabilities with which the orientations will occur, and sums the weighted contributions. SYNSEA predicts a unique surface orientation distribution for each pixel based upon the IFOV and the randomness of the surface, allowing the radiance calculations to make a smooth transition between the extremes of high and low resolution. SYNSEA has been coded in a modular fashion to facilitate modifications for integration with other codes. Although the statistics of the clutter predicted by SYNSEA have not yet been compared to any measurements, mean radiance values predicted with SYNSEA calculations have compared well with radiometric measurements.

Citation Download Citation

Bruce W. Ball "SYNSEA code for generating synthetic IR imagery of sea backgrounds", Proc. SPIE 1687, Characterization, Propagation, and Simulation of Sources and Backgrounds II, (21 September 1992); https://doi.org/10.1117/12.137844

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