| 引用本文: | 王飞行,贺思三,陈建军,等.运动平台下频率步进雷达杂波相消新方法.[J].国防科技大学学报,2010,32(3):69-74.[点击复制] |
| WANG Feixing,HE Sisan,CHEN Jianjun,et al.A Novel Method of Clutter Cancellation for Mobile Stepped-frequency Radar[J].Journal of National University of Defense Technology,2010,32(3):69-74[点击复制] |
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| 运动平台下频率步进雷达杂波相消新方法 |
| 王飞行, 贺思三, 陈建军, 付强 |
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(国防科技大学 电子科学与工程学院，湖南 长沙 410073)
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| 摘要: |
| 相消处理是一种典型而又简单易行的杂波滤除方法。针对频率步进雷达，提出一种新的杂波相消方法，它利用同一距离单元上两帧回波脉冲所成的两幅高分辨距离像(HRRP)进行杂波相消。通过合理地选择帧间隔数，该方法能够很好地保持目标HRRP特性。针对雷达平台运动所导致的两幅HRRP之间杂波移位和成分改变问题，又提出了先利用杂波相关性进行杂波对齐后再相消的解决方法。仿真结果验证了所提方法的有效性。 |
| 关键词: 杂波相消 频率步进雷达 高分辨距离像 运动平台 |
| DOI： |
| 投稿日期：2009-05-04 |
| 基金项目:国家部委重点基金资助项目(6140521) |
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| A Novel Method of Clutter Cancellation for Mobile Stepped-frequency Radar |
| WANG Feixing, HE Sisan, CHEN Jianjun, FU Qiang |
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(College of Electronic Science and Engineering, National Univ. of Defense Technology，Changsha 410073，China)
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| Abstract: |
| Cancellation processing is one kind of classical and feasible idea for the purpose of cancelling clutter. A novel method of clutter cancellation for stepped-frequency radar was proposed. Transmitting the basic stepped-frequency waveform, the radar achieves two high resolution range profiles (HRRP) that were produced by the Inverse Discrete Fourier Transform (IDFT) of two frames of return pulses on a same range cell. The two HRRPs which the number of frame interval was chosen rationally were utilized to cancel the clutter, which can keep the HRRP property of a target. To resolve the problems of the clutter shift and the clutter component change induced by the radar platform movement, a strategy was also brought out. The clutter of two HRRPs was aligned by the clutter correlation and then was cancelled. The simulation results validate the correctness of the method. |
| Keywords: clutter cancellation stepped-frequency radar high range resolution profile mobile platform |
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