| 利用小波包分析抑制窄带干扰 |
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| 引用本文： | 韩朝晖.利用小波包分析抑制窄带干扰[J].太赫兹科学与电子信息学报,2006,4(6):448-453. |
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| 作者姓名： | 韩朝晖 |
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| 作者单位： | 中国人民解放军总参电磁频谱管理中心,北京,100079 |
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| 摘 要： | 为了能够有效抑制窄带干扰，根据小波包具有任意多尺度分解的特性，以及在时、频域具有表征信号局部信息和捕捉干扰信号特征的能力，利用小波包分析技术提取和滤除干扰分量，从间断窄带干扰和持续窄带干扰两种情况着手，进行除噪并重构信号，改善信号性能，提高了信噪比。利用仿真结果，说明了小波包抑制窄带干扰的有效性。
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| 关 键 词： | 小波包 小波包分解 小波包重构 窄带干扰 抑制 |
| 文章编号： | 1672-2892(2006)06-0448-06 |
| 收稿时间： | 2006-09-20 |
| 修稿时间： | 2006-11-07 |
Rejection of Narrowband Interference Based on Wavelet Packet Analysis |
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| HAN Zhao-hui.Rejection of Narrowband Interference Based on Wavelet Packet Analysis[J].Journal of Terahertz Science and Electronic Information Technology,2006,4(6):448-453. |
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| Authors: | HAN Zhao-hui |
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| Affiliation: | Spectrum Management Center, General Staff of Chinese PLA, Beijing 100079, China |
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| Abstract: | Wavelet packet transform can provide multi-scale time-frequency detail for both signal and interference. In order to reject narrowband interference, wavelet packet analysis together with reconstruction are used for denoising study to improve signal performance. It is proved to be effective through a simulation example of denoising in the presence of both discontinuous and continuous narrow band interference. |
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| Keywords: | wavelet packet wavelet packet decomposition wavelet packet reconstruction narrowband interference rejection |
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