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组网高频地波雷达中电离层杂波分析及其抑制方法 被引量：1

Ionosphere Clutter Analysis and Suppression in HFSWR Network
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摘要 组网高频地波雷达引入了多种收发模式,在增加探测信息量获取的同时使电离层杂波更加复杂。介绍了OSMAR071组网高频地波雷达系统,结合实测数据分析了组网条件下电离层杂波距离、多普勒分布特征,以及不同路径的电离层杂波及海洋回波的相关性。利用多路径杂波相关性远大于海洋回波的特性,提出了一种基于自适应滤波的杂波抑制方法,利用其他路径的电离层杂波估计杂波分量,从而实现杂波对消。雷达实测数据分析表明了上述分析的正确性以及杂波抑制方法的可行性和有效性。 Ionosphere clutter is more complicated in HFSWR network since the detection information is enriched by multiple-input multiple-output pattern. A HFSWR network system which involves three monostatic radars is introduced. Then,the characteristic of ionosphere clutter in range domain and Doppler domain are analyzed with measured data. The correlation between ionosphere clutters is higher than it between sea echoes from different paths,based on which,a novel method for clutter suppression is proposed via adaptive filter using the clutter from different paths. Experimental results show that the analysis and processing method are feasible and effective.
作者 皮小珊 吴雄斌 马克涛 王立 田云
机构地区 武汉大学电子信息学院
出处 《科学技术与工程》 北大核心 2016年第1期103-106,125,共5页 Science Technology and Engineering
基金 国家"十二五"863计划(2012AA091701)资助
关键词 高频地波雷达组网 电离层 多路径信号相关 自适应滤波 HFSWR network ionosphere clutter correlation adaptive filter
分类号 TN958.93 [电子电信—信号与信息处理]
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参考文献11

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