基于DTTB照射源的无源雷达直达波干扰抑制

吴海洲; 陶然; 单涛

doi:10.3724/SP.J.1146.2008.01239

基于DTTB照射源的无源雷达直达波干扰抑制

doi: 10.3724/SP.J.1146.2008.01239

基金项目:

国家自然科学基金(60232010)和国家部委预研项目(A2220060039)资助课题

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出版历程
- 收稿日期: 2008-10-06
- 修回日期: 2009-03-12
- 刊出日期: 2009-09-19

Direct-path Interference Suppression for Passive Radar Based on DTTB Illuminator

摘要

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。
- 无源雷达;空域滤波;直达波干扰;宽零陷;数字电视地面广播
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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