Depth Resolving Power in Near Zone: Numerical Results for a Strip Source

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Summary

The problem of determining an unknown rectilinear source from the knowledge of its radiated field over a rectilinear bounded observation domain located in the near zone, orthogonal and centered with respect to the source is dealt with. In particular, we firstly analyze the information content of data by means of the Singular Value Decomposition of the radiation operator. Secondly, the resolution limits achievable in the reconstruction are discussed by examining the effect of the key geometrical parameters of the measurement configuration.

References (27)

  • M. Bertero

    Linear inverse and ill-posed problems

  • S. Twomey

    The application of numerical filtering to the solution of integral equations encontoured in indirect sensing measurements

    J. Franklin Institute

    (1965)
  • F. Dube et al.

    High resolution isar radar for non destructive testing

    Proc. of the IEEE AFRICON 4th

    (1996)
  • D'Errico, M.; Doublas, B.; Lee, H.: Subsurface microwave imaging for nondestructive evaluation of civil structures....
  • Joisel, A.; Mallorqui, J.; Broquetas, A.; Geffrin, J.; Joachimowicz, N.; Lossera, M.; Jofre, L.; Bolomey, J.: Microwave...
  • T. Lasri et al.

    Non-destructive testing of materials by microwave systems

    Electronic Letters

    (1998)
  • Zeni, L.; Bernini, R.; Pierri, R.: Optical tomography for dielectric profiling in processing electronic materials....
  • G. Toraldo di Francia

    Degrees of freedom of an image

    J. Opt. Soc. Am.

    (1969)
  • A. Tichonov et al.

    Solution of ill-posed problems

    (1977)
  • M. Bertero et al.

    Stability problems in inverse diffraction. IEEE Trans

    Antennas Propag.

    (1981)
  • A. den Dekker et al.

    Resolution: a survey

    J. Opt. Soc. Am. A

    (1997)
  • E. Pike et al.

    Generalised information theory for inverse problems in signal processing

    IEE Proceedings

    (1984)
  • G. Newsam et al.

    Essential dimension as a well-defined number of degrees of freedom of finite-convolution operators appearing in optics

    J. Opt. Soc. Am. A

    (1985)
  • Cited by (6)

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