High Frequency Scattering from Rough Bottoms and the Second Born Approximation
High frequency scattering from rough ocean bottoms has been treated with some success using the first Born approximation. For various grazing angles, many rough bottom descriptions require the inclusion of secondary scattering effects which the first Born approximation does not include. However, if only one secondary scattering event is important, the second Born approximation can be used effectively for prediction purposes. Calculations from a representative rough ocean bottom (a sinusoid) for a variety of frequencies are presented and results from the first and second Born approximations are compared.
KeywordsGaussian Beam Born Approximation Grazing Angle Polar Plot Bear Approximation
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