A PROPOSAL FOR A SAR INTERFEROMETRIC MODEL OF SOIL MOISTURE

被引：3

作者：

De Zan, Francesco ^{[1
]}

Parizzi, Alessandro ^{[1
]}

Prats, Pau ^{[1
]}

机构：

[1] German Aerosp Ctr DLR, D-82234 Oberpfaffenhofen, Wessling, Germany

来源：

2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2012年

关键词：

SAR Interferometry; soil moisture; coherence;

D O I：

10.1109/IGARSS.2012.6351515

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Since long it is known that SAR interferometric observables are influenced by soil moisture variations, however there is a lack of scattering models that link interferometric observables and variations of the dielectric properties. In this work we propose a model based on plane waves and Born approximation, deriving first the vertical wavenumbers in the medium as a function of geometrical and dielectric properties and successively the interferometric coherences. It is observed that soil moisture behaves on the phase in a similar way as tomography does, breaking the phase consistency in triplets of interferograms. This property, along with coherence magnitudes, is exploited in an attempt at moisture inversion on real data.

引用

页码：630 / 633

页数：4

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