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<p>Two examples of low grazing angle radar sea
clutter, both well described by the compound K-distribution
model, are studied. Pulse Doppler processing is applied to obtain
two dimensional range-time textures for the intensity, centroid
and width of the Doppler spectrum. The first example exhibits a
monochromatic swell pattern, allowing phase averaging to be
applied to the textures. The second example has a more typical
ocean wave spectrum. The intensity textures are gamma
distributed, consistent with the compound K-distribution model,
but the Doppler spectrum centroid and width textures are also
found to be gamma distributed. Based on this analysis, a new
method for simulation of coherent radar sea clutter is proposed,
where separate memoryless nonlinear transformations are
applied to a simulated water surface to generate the spatially and
temporally varying intensity, centroid and width of the Doppler
spectrum. The method builds on the evolving Doppler spectrum
model for radar sea clutter simulation and established methods
for simulation of water surfaces.
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Weak moving target detection based on suprathreshold stochastic resonance in heavy‐tailed sea clutter
