| 基于锥形尺度变换的弱小舰船目标检测 |
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| 引用本文： | 刘亚波,李亚超,邢孟道,保铮.基于锥形尺度变换的弱小舰船目标检测[J].电子与信息学报,2009,31(11):2575-2580. |
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| 作者姓名： | 刘亚波 李亚超 邢孟道 保铮 |
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| 作者单位： | 西安电子科技大学雷达信号处理重点实验室,西安,710071 |
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| 基金项目： | 国家自然科学基金重大项目(60890072)资助课题 |
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| 摘 要： | 该文提出一种低信杂噪比下弱小舰船目标的检测方法。该方法对回波的慢时间瞬时自相关函数进行锥形尺度变换(Taper Scale Transform, TST)，解除时延和慢时间的耦合。然后将TST后的信号相干积累，达到很好的检测效果。另外，该文分析了交叉项对检测的影响以及尺度因子的选择标准。实测数据的处理结果验证了该方法的有效性。
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| 关 键 词： | 目标检测 锥形尺度变换(TST) 相干积累 尺度因子 |
| 收稿时间： | 2008-11-3 |
| 修稿时间： | 2009-4-9 |
Detection of Weak Ship Target Based on Taper Scale Transform |
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| Liu Ya-bo,Li Ya-chao,Xing Meng-dao,Bao Zheng.Detection of Weak Ship Target Based on Taper Scale Transform[J].Journal of Electronics & Information Technology,2009,31(11):2575-2580. |
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| Authors: | Liu Ya-bo Li Ya-chao Xing Meng-dao Bao Zheng |
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| Affiliation: | Key Laboratory for Radar Signal Processing, Xidian University, Xi'an 710071, China |
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| Abstract: | In this paper, a new approach based on Taper Scale Transform (TST) is presented for weak ship target detection in the circumstance of strong clutter and noise. By scaling the coordinate of signal instantaneous correlation function, the coupling between slow time and lag time is removed, thus fully coherent integration can be achieved for target detection. The determination of scaling factor and the interference of cross terms related to detection are analyzed. Real data result verifies the effectiveness of the proposed method. |
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| Keywords: | Target detection Taper Scale Transform (TST) Coherent integration Scaling factor |
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