A Hierarchical Attribute Scattering Center Extraction Method for SAR Image

The attribute scattering center (ASC) is a common target characteristic in synthetic aperture radar (SAR) image. In addition to the optical features, the physical parameters extracted by ASC provide the specific target structure information related to the SAR system. However, the existing methods for ASC extraction usually extract all parameters at the same time, which cause many errors in the extracted results. In this paper, a hierarchical ASC extraction method is proposed, in which the parameters of each scattering center are extracted hierarchically. In the experimental section, a SAR image simulation algorithm is used to simulate SAR images of some typical structures and the effect of ASC extraction is analyzed. Besides, a set of measured data is used for validation as well. Experimental results show that the hierarchical ASC extraction method can extract the scattering centers more accurately.