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| 利用Radon-Wigner变换的LFM信号检测性能分析 | |
| 引用本文： | 许建忠,孙红伟,孙业岐,段平光,陈刚.利用Radon-Wigner变换的LFM信号检测性能分析[J].河北大学学报(自然科学版),2013,33(1):90-95. |
| 作者姓名： | 许建忠 孙红伟 孙业岐 段平光 陈刚 |
| 作者单位： | 1. 河北大学物理科学与技术学院,河北保定,071002 2. 河北大学工商学院,河北保定,071002 3. 北华航天工业学院,河北廊坊,065000 |
| 基金项目： | 河北省自然科学基金资助项目(2011409008) |
| 摘 要： | 针对线性调频(LFM)信号的检测问题,通过利用LFM信号在时频平面上的能量聚集特性,采用Radon-Wigner变换(RWT)实现了LFM信号的检测,并对其检测性能进行了分析,得到了噪声背景下RWT输出的信噪比,进一步推导了高斯白噪声下的检测概率.仿真实验证明了这种方法的有效性,且在低信噪比环境下有着较好的检测性能. |
| 关 键 词： | 线性调频信号 Radon-Wigner变换 检测性能 检测概率 |
Analysis of detection performance for the LFM signal based on Radon-Wigner transform |
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| XU Jianzhong , SUN Hongwei , SUN Yeqi , DUAN Pingguang , CHEN Gang.Analysis of detection performance for the LFM signal based on Radon-Wigner transform[J].Journal of Hebei University (Natural Science Edition),2013,33(1):90-95. | |
| Authors: | XU Jianzhong SUN Hongwei SUN Yeqi DUAN Pingguang CHEN Gang |
| Institution: | 1.College of Physics Science and Technology,Hebei University,Baoding 071002,China; 2.Business School,Hebei University,Baoding 071002,China; 3.North China Institute of Aerospace Engineering,Langfang 065000,China) |
| Abstract: | According to the question of detection for the linear frequency modulation(LFM) signal,basing on the characteristics of the LFM signal energy being concentrated on the time-frequency plane,a method of detection for LFM signal based on Radon-Wigner transform(RWT) is proposed.By analyzing the performance of detection,the signal-to-noise ratio of RWT exportation under noise background is received,and the detection probability in Gaussian white noise environment is derived.The results show that this method is efficiency for the LFM signal detection,and the detection performance is improved under low SNR conditions. |
| Keywords: | LFM signals Radon-Wigner transform detection performance detection probability |
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