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The Papoulis-Gerchberg Algorithm with Unknown Signal Bandwidth

  • Manuel Marques
  • Alexandre Neves
  • Jorge S. Marques
  • João Sanches
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4141)

Abstract

The Papoulis-Gerchberg algorithm has been extensively used to solve the missing data problem in band-limited signals. The interpolation of low-pass signals with this algorithm can be done if the signal bandwidth is known. In practice, the signal bandwidth is unknown and has to be estimated by the user, preventing an automatic application of the Papoulis-Gerchberg algorithm. In this paper, we propose a method to automatically find this parameter, avoiding the need of the user intervention during the reconstruction process. Experimental results are presented to illustrate the performance of the proposed algorithm.

Keywords

Discrete Fourier Transform Original Signal Lena Image Signal Bandwidth Estimate Image 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Manuel Marques
    • 1
  • Alexandre Neves
    • 1
  • Jorge S. Marques
    • 1
  • João Sanches
    • 1
  1. 1.Instituto Superior Técnico & Instituto de Sistemas e RobóticaLisboaPortugal

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