Abstract
We describe a nonlinear filtering method which can be applied to the inverse scattering problem. It requires the addition of an artificial reference wave to the scattered field data in order to create a minimum phase function. This property then permits linear filtering in the cepstral domain of the estimate for the secondary source function, from which the scattering permittivity distribution can be deduced. This approach can be applied to measured data or to specified scattering data and hence provides a method for the design, i.e. synthesis, of strongly scattering structures.
© 2005 Optical Society of America
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