Ghost persistent scatterers related to multiple signal reflections

Stefan Auer; Stefan Gernhardt; Richard Bamler

doi:10.1109/LGRS.2011.2134066

Ghost persistent scatterers related to multiple signal reflections

Stefan Auer, Stefan Gernhardt, Richard Bamler

Chair of Remote Sensing Technology

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

Abstract

Persistent scatterer interferometry using stacks of very high resolution synthetic aperture radar (SAR) data reveals that single or even patterns of scatterers representing building structures may wrongly be localized below the ground level. In this letter, a case study on a test building model is presented using 3-D SAR simulation methods in order to explain the underlying localization problem. The case study indicates that Ghost-PSs are likely to be related to reflection levels that are higher than three. Moreover, the temporal stability of the amplitude of fivefold bounce signals is confirmed for a SAR data stack.

Original language	English
Article number	5764819
Pages (from-to)	919-923
Number of pages	5
Journal	IEEE Geoscience and Remote Sensing Letters
Volume	8
Issue number	5
DOIs	https://doi.org/10.1109/LGRS.2011.2134066
State	Published - Sep 2011

Keywords

3-D synthetic aperture radar (SAR) simulation
Multiple signal reflections
TerraSAR-X
persistent scatterer interferometry (PSI)

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10.1109/LGRS.2011.2134066

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abstract = "Persistent scatterer interferometry using stacks of very high resolution synthetic aperture radar (SAR) data reveals that single or even patterns of scatterers representing building structures may wrongly be localized below the ground level. In this letter, a case study on a test building model is presented using 3-D SAR simulation methods in order to explain the underlying localization problem. The case study indicates that Ghost-PSs are likely to be related to reflection levels that are higher than three. Moreover, the temporal stability of the amplitude of fivefold bounce signals is confirmed for a SAR data stack.",

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AU - Bamler, Richard

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AB - Persistent scatterer interferometry using stacks of very high resolution synthetic aperture radar (SAR) data reveals that single or even patterns of scatterers representing building structures may wrongly be localized below the ground level. In this letter, a case study on a test building model is presented using 3-D SAR simulation methods in order to explain the underlying localization problem. The case study indicates that Ghost-PSs are likely to be related to reflection levels that are higher than three. Moreover, the temporal stability of the amplitude of fivefold bounce signals is confirmed for a SAR data stack.

KW - 3-D synthetic aperture radar (SAR) simulation

KW - Multiple signal reflections

KW - TerraSAR-X

KW - persistent scatterer interferometry (PSI)

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ER -

Ghost persistent scatterers related to multiple signal reflections

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