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利用静态方向图数值综合方法抑制电离层干扰 被引量:1

Ionospheric interference suppression based on numerical pattern synthesis beamforming
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摘要 利用二维静态方向图数值综合方法(Numerical Pattern Synthesis,NPS)同时对方位角和俯仰角进行优化,完成高频地波雷达回波信号的数字波束形成,并利用一种基于方向图旁瓣的性能模型来确定最优参数,实现电离层干扰抑制的功能.对8×8元方阵的仿真分析及实测的回波数据分析发现,来自空中电离层干扰的影响明显减轻,从而证明了该方法的有效性. Numerical pattern synthesis(NPS) method is used to restrain the iono- spheric interference in high frequency surface wave radar(HFSWR) system. Both horizontal and vertical directions are involved during beamforming. Proper parame- ters determined by a directional pattern performance model reveals better perform ance. The results for 8X 8 array simulation and real data show that the ionospheric interference from sky can be effectively restrained.
出处 《电波科学学报》 EI CSCD 北大核心 2013年第5期926-933,共8页 Chinese Journal of Radio Science
基金 国家高技术发展研究计划(863计划:2012AA091701) 国家自然科学基金(60571065) 中央高校基本科研业务费专项资金资助(2012212020208)
关键词 高频地波雷达 二维NPS算法 电离层干扰抑制 方向图性能模型 HFSWR 2-D NPS algorithm ionospheric interference suppression directional pattern performance model
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