Spaceborne squinted multichannel synthetic aperture radar data focusing
Spaceborne squinted multichannel synthetic aperture radar data focusing
复制标题
星载斜视多通道合成孔径雷达数据聚焦
DOI:
10.1049/iet-rsn.2013.0332
复制
发表时间:
2014-05
影响因子:
1.7
通讯作者:
Shengyang Li
中科院分区:
文献类型:
--
作者:
Pingping Huang;Wei Xu;Shengyang Li
This study analyses echo properties of spaceborne squinted multichannel along the track synthetic aperture radar (SAR) data. The highly squint angle and the large transmitted pulse bandwidth lead to Doppler spectrum back folding in the spaceborne squinted case. The extended Doppler bandwidth in the squinted mode increases the processing difficulty of azimuth multichannel data reconstruction. According to echo properties of the spaceborne squinted mode, a new imaging approach for spaceborne squinted multichannel SAR data focusing is proposed. The key point of this imaging approach is azimuth multichannel data preprocessing to resolve the aliased Doppler spectrum caused by both azimuth sub-sampling in each azimuth channel and the highly squint angle. Afterwards, a modified range migration algorithm is taken for consequent equivalent monostatic spaceborne squinted SAR data focusing. Simulation results on point targets and distributed target are given to validate the proposed imaging approach.
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DOI:
10.1109/taes.2009.5089542
发表时间:
2009-04-01
影响因子:
4.4
作者:
Gebert, Nicolas;Krieger, Gerhard;Moreira, Alberto
通讯作者:
Moreira, Alberto
影响因子:
8.2
作者:
Davidson, GW;Cumming, I
通讯作者:
Cumming, I
影响因子:
8.2
作者:
MOREIRA, A;HUANG, YH
通讯作者:
HUANG, YH
DOI:
--
发表时间:
2006-05
期刊:
--
影响因子:
--
作者:
N. Gebert;G. Krieger;A. Moreira
通讯作者:
N. Gebert;G. Krieger;A. Moreira
DOI:
10.1049/ip-f-2.1992.0016
发表时间:
1992-04-01
期刊:
IEE PROCEEDINGS-F RADAR AND SIGNAL PROCESSING
影响因子:
--
作者:
CURRIE, A;BROWN, MA
通讯作者:
BROWN, MA