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In this paper, a GEOSAR mission with typical LEOSAR
parameters but longer integration time to increase the
received power is presented. Such systems can provide
images of large areas with continuous monitoring. The
revisit time is reduced to the synthetic aperture integr
ation time to reach the desired resolution and SNR require-
ments. However, the Atmospheric Phase Screen (APS) ar
tefacts must be characterized to compensate the long
term atmospheric phase decorrelation. An APS correc
tion methodology from short term periodic acquisitions
(sub-apertures) of the whole long term synthetic aperture
is analysed. Finally, the first results obtained from
Ground-Based SAR (GB-SAR) real data are presented to validate the proposed correction method.
CitationRuiz, J. [et al.]. Atmospheric phase screen retrieval from GEOSAR long term acquisition. A: European Conference on Synthetic Aperture Radar. "Proceedings of EUSAR 2012: 9th European conference on syntethic aperture radar". Nürnberg: 2012, p. 79-82.
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