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Towards airborne single pass decimeter resolution SAR interferometry over urban areas


Schmitt, M; Magnard, C; Brehm, T; Stilla, U (2011). Towards airborne single pass decimeter resolution SAR interferometry over urban areas. In: Photogrammetric Image Analysis. Springer, 197-208.

Abstract

Airborne cross-track Synthetic Aperture Radar interferome- ters have the capability of deriving three-dimensional topographic infor- mation with just a single pass over the area of interest. In order to get a highly accurate height estimation, either a large interferometric baseline or a high radar frequency has to be used. The utilization of a millimeter wave SAR allows precise height estimation even for short baselines. Com- bined with a spatial resolution in the decimeter range, this enables the mapping of urban areas from airborne platforms. The side-looking SAR imaging geometry, however, leads to disturbing effects like layover and shadowing, which is even intensified by the shallow looking angle caused by the relatively low altitudes of airborne SAR systems. To solve this de- ficiency, enhanced InSAR processing strategies relying on multi-aspect and multi-baseline data, respectively, are shown to be necessary.

Airborne cross-track Synthetic Aperture Radar interferome- ters have the capability of deriving three-dimensional topographic infor- mation with just a single pass over the area of interest. In order to get a highly accurate height estimation, either a large interferometric baseline or a high radar frequency has to be used. The utilization of a millimeter wave SAR allows precise height estimation even for short baselines. Com- bined with a spatial resolution in the decimeter range, this enables the mapping of urban areas from airborne platforms. The side-looking SAR imaging geometry, however, leads to disturbing effects like layover and shadowing, which is even intensified by the shallow looking angle caused by the relatively low altitudes of airborne SAR systems. To solve this de- ficiency, enhanced InSAR processing strategies relying on multi-aspect and multi-baseline data, respectively, are shown to be necessary.

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Additional indexing

Item Type:Book Section, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Geography
Dewey Decimal Classification:910 Geography & travel
Language:English
Date:2011
Deposited On:18 Nov 2011 12:56
Last Modified:05 Apr 2016 15:07
Publisher:Springer
Series Name:Lecture Notes in Computer Science
Number:6952
ISSN:0302-9743 (P) 1611-3349 (E)
ISBN:978-3-642-24393-6
Publisher DOI:https://doi.org/10.1007/978-3-642-24393-6_17
Permanent URL: https://doi.org/10.5167/uzh-51247

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