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Method for Radon Transform Based Sea Clutter Suppression at High Grazing Angles |
Li Qiang; Zhang Shou-hong; Zhang Huan-ying; Cao Yun-he |
Key Laboratory for Radar Signal Processing, Xidian Univ., Xi’an 710071, China |
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Abstract At high grazing angles, the sea clutter background has a strong impact on 3-D imaging. A method for Radon transform based sea clutter suppression is given in this paper. ISAR technique is used to get two-dimension image of the target firstly. Then angular motion compensation and Radon transformation are performed to the ISAR image. A novel search algorithm based on the edge detection is used to divide the target from the sea clutter in the end. The result of the 3-D imaging shows the effectiveness of the new method for sea clutter suppression.
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Received: 23 September 2005
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