One of the most critical steps of SAR interferometry for elevation mapping is the phase-unwrapping procedure. This paper analyzes the reduction of the phase-unwrapping drawbacks obtainable by using a recently proposed three-antenna SAR interferometer and a statistically optimal processor to estimate directly the interferometric phase with reduced ambiguity. A simulation of realistic scenarios is carried out. The performance analysis shows that the new technique significantly outperforms the conventional one, especially for high-relief terrains.
Reduction of the phase-unwrapping drawbacks by a three antenna interferometric SAR system
CORSINI, GIOVANNI;DIANI, MARCO;Lombardini F;
1997-01-01
Abstract
One of the most critical steps of SAR interferometry for elevation mapping is the phase-unwrapping procedure. This paper analyzes the reduction of the phase-unwrapping drawbacks obtainable by using a recently proposed three-antenna SAR interferometer and a statistically optimal processor to estimate directly the interferometric phase with reduced ambiguity. A simulation of realistic scenarios is carried out. The performance analysis shows that the new technique significantly outperforms the conventional one, especially for high-relief terrains.File in questo prodotto:
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