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Articles

Interpolation using Optimum Nyquist Filter for SAR Interferometry

Pages 129-135 | Published online: 03 Apr 2012
 

Abstract

Interpolation is necessary for image registration in interferometric synthetic aperture radar (InSAR). In this letter, the raised cosine (RC) function used in digital communications is proposed as a new interpolation kernel for SAR interferometry. Theoretical and simulation results are compared for the new interpolation kernel and the classical ones, and the proposed kernel shows the best result in interpolation accuracy even with much smaller window sizes.

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