A Fast 3-D Cylindrical Scanning Near-Field ISAR Imaging Approach With Extended Far-Field RCS Extraction Based on a Modified Focusing Operator
Conference: EUSAR 2016 - 11th European Conference on Synthetic Aperture Radar
06/06/2016 - 06/09/2016 at Hamburg, Germany
Proceedings: EUSAR 2016
Pages: 5Language: englishTyp: PDF
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Authors:
Vaupel, Thomas (Fraunhofer Institute for High Frequency Physics and Radar Techniques, Wachtberg, Germany)
Abstract:
This contribution describes the improvement and extension of a 3-D inverse synthetic aperture radar (ISAR) imaging technique using a cylindrical scanning plane, first presented in [2]. The improvement is based on a modified focusing operator outlining the complete mathematical derivation, which is not given in the literature so far, leading to a much better image quality especially for short measurement distances. Furthermore a fast extraction of the far-field radar cross section (RCS) is presented, allowing now the RCS-extraction over a larger elevation angle (not only the 'waterline' case) especially for short distance processing.