DEM extraction via circular synthetic aperture radar

doi:10.7523/j.issn.1002-1175.2013.01.008

Abstract

Abstract:

Circular synthetic aperture radar (CSAR) has the capabilities of 360°all-aspect observation and high-resolution 3D reconstruction. Therefore it can obtain the DEM of the scenes. We propose a method to directly extract the DEM via CSAR. We cut the radar track circle into different arcs and then divide each arc into many sub-apertures. By utilizing the similarity of the sub-aperture images we extract the DEM by the way of the cross correlation. The data obtained in the microwave anechoic chamber indicate that this method is effective.

Key words: synthetic aperture radar (SAR), circular SAR(CSAR), digital elevation model(DEM)

CLC Number:

TN958

LIU Ting, LIN Yun, TAN Wei-Xian, HONG Wen, WANG Yan-Ping. DEM extraction via circular synthetic aperture radar[J]. , 2013, 30(1): 47-52.

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