| 基于Radon变换的线性调频信号参数提取 |
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| 引用本文： | 陈根华.基于Radon变换的线性调频信号参数提取[J].电子科技,2004(12):40-43. |
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| 作者姓名： | 陈根华 |
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| 作者单位： | 西安电子科技大学,电子对抗研究所,陕西,西安,710071 |
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| 摘 要： | 在电子侦察(ELINT)中对于线性调频信号的参数提取目前主要有Radon-Wigner变换,而这种算法要求运算量比较大,运算时间也比较长.文中从图像处理的角度,利用Radon变换的直线提取功能对信号的Wigner-Vill分布的时频图像进行参数提取,并且对原来的算法进行一定的改进.仿真结果证明这个算法具有实时性和精度高等特点.
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| 关 键 词： | Radon变换 线性调频信号 Wigner-Vill分布 参数提取 |
| 修稿时间： | 2004年8月25日 |
Parameters-Extraction of the LFM Signal Based on Radon Transform |
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| Chen Genhua.Parameters-Extraction of the LFM Signal Based on Radon Transform[J].Electronic Science and Technology,2004(12):40-43. |
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| Authors: | Chen Genhua |
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| Abstract: | In ELINT the Radon-Wigner transform is the main method for extracting the parameters of the LFM signal such as a slope, which, however, needs a large amount of computational load and time. The original algorithm is improved and some parameters are extracted from the time-frequency image from Wigner-Vill distribution by the line-extracted capacity of Radon transform. Simulation result proves the algorithm to be good in real-time and high in precision. |
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| Keywords: | Radon transform LFM Wigner-Vill distribution parameters extraction |
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