Resolution Calculation and Analysis in Bistatic SAR With Geostationary Illuminator

Bistatic synthetic aperture radar with geostationary illuminator (GeoBiSAR) has its own characteristics in terms of geometrical configuration. In this letter, we treat the Earth's surface as an ellipsoid surface and consider the case of large coherent integration angle and then combine them wit...

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Veröffentlicht in:	IEEE geoscience and remote sensing letters 2013-01, Vol.10 (1), p.194-198
Hauptverfasser:	Wang, Jingen, Wang, Yanfei, Zhang, Jianming, Ge, Jialong
Format:	Artikel
Sprache:	eng
Schlagworte:	Bistatic synthetic aperture radar (BiSAR) Doppler effect Earth geostationary illuminator Low earth orbit satellites Receivers resolution Spatial resolution Surface treatment synthetic aperture radar (SAR) Vectors
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Zusammenfassung:	Bistatic synthetic aperture radar with geostationary illuminator (GeoBiSAR) has its own characteristics in terms of geometrical configuration. In this letter, we treat the Earth's surface as an ellipsoid surface and consider the case of large coherent integration angle and then combine them with the existing methods to determine three key elements describing 2-D resolution for GeoBiSAR and give the generalized resolution calculation formulas for GeoBiSAR. Simulation results verify the validity of the resolution calculation formulas and the related conclusions.
ISSN:	1545-598X 1558-0571
DOI:	10.1109/LGRS.2012.2197850