Recovery of Images Distorted by an Instrument Function with Unknown Side Lobes

  • V. A. Cherepenin
  • A. V. Kokoshkin
  • V. A. Korotkov
  • K. V. Korotkov
  • E. P. Novichikhin
Theory and Methods of Signal Processing

Abstract

A method for compensating the influence of unknown side lobes of a distorting instrument function on the quality of image recovery is proposed. A processing algorithm, based on the knowledge of the main lobe of the instrument function and its spectrum together with a universal reference spectrum, is used to compensate the contribution of the unknown side lobes to the spectrum of the distorted image. The stability of the method to the noise inherent in the improved images and various forms of distorting instrument functions is analyzed. High efficiency of the method of compensation is demonstrated in the cases in which the total contribution from the unknown side lobes to the resulting brightness of the distorted image significantly (four-fold) exceeds the contribution from the main lobe.

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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • V. A. Cherepenin
    • 1
  • A. V. Kokoshkin
    • 2
  • V. A. Korotkov
    • 2
  • K. V. Korotkov
    • 2
  • E. P. Novichikhin
    • 2
  1. 1.Institute of Radio Engineering and ElectronicsRussian Academy of SciencesMoscowRussia
  2. 2.Institute of Radio Engineering and Electronics (Fryazino Branch)Russian Academy of SciencesFryazino, Moscow oblastRussia

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