| 引用本文: | 陆珉,李禹,黄春琳,等.基于小波变换的探地雷达随机RFI抑制方法.[J].国防科技大学学报,2009,31(3):65-69.[点击复制] |
| LU Min,LI Yu,HUANG Chunlin,et al.Method of Random RFI Suppression for GPR Based on Wavelet[J].Journal of National University of Defense Technology,2009,31(3):65-69[点击复制] |
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| 基于小波变换的探地雷达随机RFI抑制方法 |
| 陆珉, 李禹, 黄春琳, 粟毅 |
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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: |
| 针对探地雷达(Ground Penetrating Radar, GPR)与移动通信系统终端存在的频谱共用的电磁兼容性问题，着重分析了GPR接收中随机性射频干扰(Radio Frequency Interference, RFI)的性质，以及该类RFI与GPR目标回波信号在小波多尺度分解中分布的差异性，并基于此分析，提出了基于小波变换域的GPR随机RFI抑制算法,利用两种实测实验数据进行验证,结果表明，该方法能较好地抑制GPR的随机性RFI。 |
| 关键词: 探地雷达 射频干扰 小波变换 Lipschitz指数 |
| DOI： |
| 投稿日期：2009-02-09 |
| 基金项目:国家863计划资助项目(2008AA12Z117) |
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| Method of Random RFI Suppression for GPR Based on Wavelet |
| LU Min, LI Yu, HUANG Chunlin, SU Yi |
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(College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Due to the frequency sharing, Electro Magnetic Compatibility between GPR and Mobile Telephone System is crucial. In the current study, the properties of the random RFI signal received by GPR are analyzed in detail, and the differences between the random RFI and target signal are presented in wavelet field. Furthermore, the method of random RFI suppression based on wavelet transform is proposed. Additionally, the two types of data are collected to validate the performance of the method. Finally, the experimental results prove the effectiveness of the method. |
| Keywords: ground penetrating radar (GPR) radio frequency interference (RFI) wavelet transform Lipschitz exponent |
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