Robust ionospheric clutter mitigation method for high frequency surface wave radar

查看全文 作　　者：LI Lei XU RongQing LI [1]GaoPeng

机构地区：[1]Research Institute of Electronic Engineering, Harbin Institute of Technology, Harbin 150001, China

出　　处：《Science in China(Series F)》索引2008年第51卷第12期,共7页

摘　　要：This paper analyzes the characteristics of ionospheric clutter, which has proven to be the greatest impediment in high frequency surface wave radar (HFSWR). Iono-spheric clutter influences most range bins, all Doppler bins and beams, and exhib-its a high directivity. A robust adaptive side-lobe cancellation algorithm based on orthogonal auxiliary beams, which use the difference beams to estimate the iono-spheric clutter information, is introduced to suppress the ionospheric clutter. Training data was selected by excluding the sea clutter and probable target unit; and diagonal loading was added to enhance the robustness of the algorithm. Ex-perimental results demonstrate that the algorithm is able to suppress the iono-spheric clutter whilst preserving the desired characteristics of the target echoes and is suitable for practical implementation. 关键词：HFSWR 电离杂波自适信号程序辅助光束对角装载

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Robust ionospheric clutter mitigation method for high frequency surface wave radar

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