| 基于DTTB照射源的无源雷达直达波干扰抑制 |
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| 引用本文： | 吴海洲, 陶然, 单涛. 基于DTTB照射源的无源雷达直达波干扰抑制[J]. 电子与信息学报, 2009, 31(9): 2033-2038. doi: 10.3724/SP.J.1146.2008.01239 |
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| 作者姓名： | 吴海洲 陶然 单涛 |
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| 作者单位： | 北京理工大学电子工程系,北京,100081;北京理工大学电子工程系,北京,100081;北京理工大学电子工程系,北京,100081 |
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| 基金项目： | 国家自然科学基金，国家部委预研项目(A2220060039)资助课题 |
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| 摘 要： | 该文根据DTTB照射源雷达各通道的特点，采用空域滤波方法来抑制直达波干扰。回波通道采用自适应波束形成与宽零陷结合的方法。参考通道采用改进的通用旁瓣对消结构以消除期望信号的影响，同时实现了宽零陷。基于DTTB信号的仿真结果表明，该文提出 的空域滤波方法是有效的。
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| 关 键 词： | 无源雷达 空域滤波 直达波干扰 宽零陷 数字电视地面广播 |
| 收稿时间： | 2008-10-06 |
| 修稿时间： | 2009-03-12 |
Direct-path Interference Suppression for Passive Radar Based on DTTB Illuminator |
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| Wu Hai-zhou, Tao Ran, Shan Tao. Direct-path Interference Suppression for Passive Radar Based on DTTB Illuminator[J]. Journal of Electronics & Information Technology, 2009, 31(9): 2033-2038. doi: 10.3724/SP.J.1146.2008.01239 |
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| Authors: | Wu Hai-zhou Tao Ran Shan Tao |
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| Affiliation: | Department of Electronic engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | According to the character of Passive Radar based on DTTB illuminator, spatial filtering is used to suppress the direct-path interference. The adaptive beamforming algorithms combined with broad null are adopted in echo receiving channel. To reference channel, the improved structure of general sidelobe canceller to realize the adaptive beamformer is used, simultaneity which is combined with the broad null algorithm. The simulations based on the DTTB signal show applying the proposed method has better the performance of target detection. |
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| Keywords: | Passive radar Spatial filtering Direct-path interference Broad null Digital Television Terrestrial Broadcasting(DTTB) |
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