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Distributed Satellites SAR High Range Resolution Imaging Using Spectral Synthesis
利用频谱合成实现分布式卫星SAR高距离分辨力成像

Keywords: Distributed satellites,Synthetic Aperture Radar (SAR),High resolution imaging
分布式卫星
,合成孔径雷达(SAR),高分辨力成像

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Abstract:

Different data sets relative to the same scene acquired with different view angles can be exploited to improve slant-range resolution of SAR in broadside mode. Distributed satellites SAR is a special kind of SAR system, whose transmitters and receivers are placed separately and work in different mode (broadside mode and squint mode). In this paper, data sets acquired from distributed satellites SAR system is discussed. It points out that, different angles between the radar Line Of Sight (LOS) and the satellite's vertical orbital plane correspond to different bands of the ground reflectivity's spectrum. Therefore, the range resolution can be improved by using combined spectra. In addition, the influence of distributed satellites SAR system's parameters on spectral synthesis is also discussed.

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