| 摘要: |
| 针对卫星导航抗干扰天线平台提出了一种利用Griffiths-Jim自适应波束形成器的干扰源方位估计方法。首先，通过能量检测器判决观测空间中是否存在干扰信号；接下来，若干扰存在则通过Griffiths-Jim自适应波束形成器对观测空间进行扫描得到空间谱数据；最后，通过空间谱中局部峰值对应的方位获得干扰源方位的估计值。该方法结构简单、分辨率高，易于在抗干扰天线平台上工程实现。通过计算机仿真试验验证该方法的有效性。 |
| 关键词: 卫星导航 干扰 方位估计 自适应波束形成 |
| DOI： |
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| 基金项目: |
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| A DOA Estimation Method of Satellite Navigation Jammers Based on Adaptive Beamforming |
| WANG Xiao-yu,ZHANG Hua,XIE Bin-bin |
| (The 20th Research Institute of CETC) |
| Abstract: |
| A DOA（Direction of arrival）estimation method of satellite navigation jammers based on Griffiths-Jim adaptive beamformer is proposed in this paper for anti-jamming antenna array platform.Firstly，the jamming signals are determined by energy detector.Then，the spatial spectrum is obtained by adaptive beam scanning in space.At last，the directions of arrivals of jammers are estimated by local peak detecting in spatial spectrum.The structure of the method proposed in this paper is simple and has high resolution，so it suits realization in anti-jamming antenna array platform.The computer simulation results verify the effectiveness of the method in this paper. |
| Key words: Satellite navigation Jammer DOA estimation Adaptive beamforming |
