IONOSPHERIC EFFECTS IN SAR INTERFEROMETRY: AN ANALYSIS AND COMPARISON OF METHODS FOR THEIR ESTIMATION

被引:31
作者
Brcic, Ramon [1 ]
Parizzi, Alessandro [1 ]
Eineder, Michael [1 ]
Bamler, Richard [1 ]
Meyer, Franz [2 ]
机构
[1] German Aerosp Ctr DLR, Remote Sensing Technol Inst, D-82234 Wessling, Germany
[2] Univ Alaska, Inst Geophys, Fairbanks, AK 99775 USA
来源
2011 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2011年
关键词
wideband interferometry; split-spectrum; delta-k; ionosphere; SYSTEMS;
D O I
10.1109/IGARSS.2011.6049351
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
For spaceborne SAR (Synthetic Aperture Radar) systems, the dispersive effects of the ionosphere on the propagation of the SAR signal can be a significant source of phase error. While at X-band frequencies the effects are small, current and future P-, L- and C-band systems would benefit from ionospheric compensation to avoid errors in topographic retrieval. In this paper the focus is on the effects of the ionosphere on repeat-pass SAR interferometry from P-through X-bands and methods for their estimation which are demonstrated on L-band ALOS-PALSAR acquisitions(1.)
引用
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页码:1497 / 1500
页数:4
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