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New technique for estimation of farfield from near-zone phaseless data

New technique for estimation of farfield from near-zone phaseless data

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A new method for the estimation of the far field from two amplitude distributions in near zone is presented. The crucial point of the proposed approach relies on the choice of an appropriate function of the data, which is minimised in order to find the solution. It turns out that, although the problem is nonlinear, the global minimum can be found efficiently by a Newton-like minimisation procedure.

References

    1. 1)
      • J.E. McCormack , G. Junkin , A.P. Anderson . Microwave metrology of reflector antennas from a single amplitude. IEE Proc. H , 276 - 284
    2. 2)
      • T. Isernia , G. Leone , R. Pierri , P.C. Sabatier . (1990) A quadratic inverse problem: the phase retrieval, Inverse methods in action.
    3. 3)
      • Isernia, T., Leone, G., Pierri, R.: `Numerical experiments on the phase retrieval in near zone', Proc. Journées Internationales de Nice sur les Antennes, 1988, Nice, France.
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