Resolution of CSAR imaging by Incoherent addition

Konferenz: EUSAR 2016 - 11th European Conference on Synthetic Aperture Radar
06.06.2016 - 09.06.2016 in Hamburg, Germany

Tagungsband: EUSAR 2016

Seiten: 3Sprache: EnglischTyp: PDF

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Chen, Leping; An, Daoxiang; Huang, Xiaotao (College of Electronic Science and Engineering, National University of Defense Technology, China)

In this paper we consider the resolution of circular synthetic aperture (CSAR) radar imaging by incoherent addition. Although incoherent addition makes a loss in phase information, it contributes to suppressing the sidelobe and object reconstruction in the process of imaging. Based on analysis of a point target with an assumption of flat two-dimensional, a general impulse response function (IRF) is derived for estimating the spatial resolutionof incoherent addition CSAR imaging. The result is useful for the selection of subaperture angle in incoherent addition imaging.