Rough surface backscatter and statistics via extended parabolic integral equation

@article{Spivack2014RoughSB,
  title={Rough surface backscatter and statistics via extended parabolic integral equation},
  author={Mark Spivack and Orsola Rath Spivack},
  journal={arXiv: Optics},
  year={2014}
}
This paper extends the parabolic integral equation method, which is very effective for forward scattering from rough surfaces, to include backscatter. This is done by applying left-right splitting to a modified two-way governing integral operator, to express the solution as a series of Volterra operators; this series describes successively higher-order surface interactions between forward and backward going components, and allows highly efficient numerical evaluation. This and equivalent… 
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