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| 时频分析在反辐射导弹检测中的应用 | |
| 引用本文： | 顾小波,王永良,王首勇.时频分析在反辐射导弹检测中的应用[J].空军雷达学院学报,2007,21(1):18-20. |
| 作者姓名： | 顾小波 王永良 王首勇 |
| 作者单位： | 1. 空军雷达学院研究生管理大队,武汉,430019 2. 空军雷达学院科研部,武汉,430019 3. 空军雷达学院信息与指挥自动化系,武汉,430019 |
| 摘 要： | 针对反辐射导弹检测的问题，利用在雷达回波中的载机信号为单频信号、反辐射导弹为宽带调频信号，且载机信号幅度远大于导弹信号的特点，提出了运用时频分析检测反辐射导弹的方法，该方法首先利用小波包变换滤除载机信号，然后对滤波后信号进行时频重排，最后对重排后信号用Wigner-Hough变换检测导弹信号．仿真表明该方法可以有效地将雷达回波中的强载机信号消除而保留微弱的ARM信号． |
| 关 键 词： | 反辐射导弹 小波包变换 时频重排 Wigner-Hough变换 |
| 文章编号： | 1673-8691（2007）01-0018-03 |
| 修稿时间： | 2006-10-232006-11-15 |
Application of Time-frequency Analysis to Anti-radiation Missile Detection |
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| GU Xiao-bo,WANG Yong-liang,WANG Shou-yong.Application of Time-frequency Analysis to Anti-radiation Missile Detection[J].Journal of Air Force Radar Academy,2007,21(1):18-20. | |
| Authors: | GU Xiao-bo WANG Yong-liang WANG Shou-yong |
| Abstract: | Concerning the aircraft signal in the radar echoes being monochromatic and the ARM signal being wideband chirp, as well as the amplitude of the former is greater than that of the latter, a new method for ARM detection was proposed, based on time-frequency analysis, The wavelet packet transform was employed to filter out the aircraft signal, and then the filtered signal was re-assigned in time-frequency, and lastly the ARM detection was fulfilled in the re-assigned signal by using Wigner-Hough transform. By computer simulations it is shown that using this method can eliminate effectively the unwanted strong aircraft signal and keep the desired weak ARM signal in the radar echoes. |
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