| 引用本文: | 戴征坚,郁文贤,胡卫东,等.强干扰下LFM信号的检测与参数估计.[J].国防科技大学学报,1999,21(3):50-54.[点击复制] |
| Dai Zhengjian,Yu Wenxian,Hu Weidong,et al.The Detection and Parameter Estimation of LFM Signal Embeded in Strong Interference[J].Journal of National University of Defense Technology,1999,21(3):50-54[点击复制] |
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| 强干扰下LFM信号的检测与参数估计 |
| 戴征坚, 郁文贤, 胡卫东, 吴建辉 |
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(国防科技大学 ATR 重点实验室 湖南 长沙 410073)
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| 摘要: |
| 强干扰下LFM信号的检测与参数估计在雷达信号处理领域具有重要的应用。本文首先分析了强干扰下LFM信号的特点, 对LFM信号的检测与参数估计方法进行了总结和比较; 随后研究了WHT法的检测性能, 绘制了WHT检测器的接收机性能曲线(ROC)。最后, 提出一种基于WHT的抑制强干扰和进行LFM信号检测与参数估计的方法, 并给出了实验结果。 |
| 关键词: 线性调频, 参数估计, 威格勒-霍夫变换 |
| DOI： |
| 投稿日期：1998-10-21 |
| 基金项目:国家部委基金项目资助 |
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| The Detection and Parameter Estimation of LFM Signal Embeded in Strong Interference |
| Dai Zhengjian, Yu Wenxian, Hu Weidong, Wu Jianhui |
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(ATR State Key Lab, NUDT, Changsha 410073)
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| Abstract: |
| It is an important application for the detection and parameter estimation of LFM signal embeded in strong interference in radar signal processing. We have analyzed the characteristics of LFM signal embeded in strong interference, at the same time, the methods of detection and parameter estimation of LFM signal are summarized and compared in this paper. Subsequently, we investigated the detection performance and portray the ROC of WHT detector. Finally, we advance a method of restraining the strong interference, detecting and estimating the parameter of LFM signal based on WHT, and the experimental results are given. |
| Keywords: linear frequency modulated(LFM), parameter estimation, wigner-Hough transform |
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