High-Resolution Estimation of Ionospheric Phase Screens through Semi-Focusing Processing

Gomba, Giorgio; Eineder, Michael; Parizzi, Alessandro; Bamler, Richard

Gomba2014:HRE

Title:: High-Resolution Estimation of Ionospheric Phase Screens through Semi-Focusing Processing
Author(s):: Gomba, Giorgio; Eineder, Michael; Parizzi, Alessandro; Bamler, Richard
Abstract:: Ionosphere irregularities along the synthetic aperture generate shifts and blurring that cause decorrelation. In this paper it is shown how, by partially focusing {SAR} images to the height of the ionosphere, it is possible to reduce the ionospheric azimuth effects and increase the coherence. This permits, even in case of turbulent ionosphere, to obtain better accuracies when separating the deformations phase from the ionospheric phase using the delta-k split-band interferometry method.
Keywords:: Apertures, Azimuth, blurring, Coherence, decorrelation, delta-k split-band interferometry method, Estimation, Focusing, geophysical techniques, high-resolution estimation, insar, ionosphere, ionosphere estimation, ionosphere irregularities, ionosphere scintillation, ionospheric azimuth effect, ionospheric electromagnetic wave propagation, ionospheric phase screens, radar imaging, radar interferometry, remote sensing by radar, {SAR} images, {SAR} ionospheric effects, semifocusing processing, synthetic aperture generate shift, synthetic aperture radar, turbulent ionosphere, without_full_paper_review «
Apertures, Azimuth, blurring, Coherence, decorrelation, delta-k split-band interferometry method, Estimation, Focusing, geophysical techniques, high-resolution estimation, insar, ionosphere, ionosphere estimation, ionosphere irregularities, ionosphere scintillation, ionospheric azimuth effect, ionospheric electromagnetic wave propagation, ionospheric phase screens, radar imaging, radar interferometry, remote sensing by radar, {SAR} images, {SAR} ionospheric effects, semifocusing processing, synt... »
Journal title:: Proceedings of the International Geoscience and Remote Sensing Symposium (IGARSS)
Year:: 2014
Pages contribution:: 17--20
Notes:: 00002
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