Results on spatial-temporal atmospheric phase screen retrieval from long-term GEOSAR acquisition
Results on spatial-temporal atmospheric phase screen retrieval from long-term GEOSAR acquisition
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DOI：
10.1109/igarss.2012.6350601
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发表时间：
2012-07
期刊：
影响因子：
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通讯作者：
J. R. Rodon;A. Broquetas;E. Varona;A. M. Guarnieri;F. Rocca
中科院分区：
文献类型：
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作者：
J. R. Rodon;A. Broquetas;E. Varona;A. M. Guarnieri;F. Rocca
提出了一种高积分增益GEOSAR对地成像使命。长积分时间GEOSAR使命的时空大气去相关问题必须认真研究。研究了GEOSAR大气相位屏反演使命的可行性。从几个小时的采集中接收的原始数据被分成子采集，其积分时间与APS去相关时间的顺序相同。从每个子矩阵，获得低分辨率但足以对大气图的空间变化进行采样。文中最后给出了对GEOSAR数据进行APS反演的模拟结果。
In this paper, a high integration gain GEOSAR mission for Earth imaging is presented. The spatial-temporal atmospheric decorrelation issues of a long integration time GEOSAR mission must be carefully studied. The feasibility of a GEOSAR mission for Atmospheric Phase Screen retrieval purposes is studied. The raw data received from several hours of acquisition is divided into sub-acquisitions with integration time on the order of the APS decorrelation time. From each sub-matrix, a low-resolution but enough to sample the spatial variations of the atmospheric map is obtained. The simulated results of the APS retrieval from a GEOSAR acquisition are shown at the end of this paper.