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空频抗干扰技术通过空域、频域联合具备良好的抗干扰性能，能够有效滤除强干扰信号，但在四阵元阵列抗干扰天线参考阵元固定，有特定干扰信号来向的情况下，会出现干扰信号来向分布和阵列抗干扰天线阵元分布强空间相关性，部分阵元接收信号时间延迟相同，使得空频抗干扰技术自由度下降，不能完全滤除干扰信号，抗干扰性能下降。四阵元空频抗干扰参考阵元自适应方法通过自适应改变参考阵元，避免特定干扰信号来向和阵列抗干扰天线阵元分布的强空间相关性，避免抗干扰性能下降。对该方法进行了理论分析及实物性能验证，证明了其有效性。
Abstract：The space-frequency anti-jamming technology has excellent anti-jamming performance through joint spatial and frequency domain processing, can effectivy filter the strong interference signals.However, in four-element array anti-jamming antenna with fixed reference elements, specific interference signal directions may create strong spatial correlations between the interference signal direction distribution and the array element distribution of array anti-jamming antenna.This leads to identical time delays in received signals of partial array elements, thereby the degrees of freedom in space-frequency anti-jamming technology are reduced.Consequently, complete interference signal filtration becomes unachievable, which resuls in degraded anti-jamming performance.The proposed reference element adaptive method for four-element array antenna based on space-frequency anti-jamming technology addresses this limitation by dynamically adjusting reference elements.This adaptation avoids strong spatial correlations between the directions of specific interference signals and array element distributions of array anti-jamming antenna, thereby optimal anti-jamming performance is maintained.For the method, this paper provides theoretical analysis and physical prototype performance verification, conclusively demonstrates the effectiveness.
[1] 陈耀辉.参考阵元可自适应调整的阵列天线抗干扰方法[J].导航定位与授时，2016,3(2):42-47.
[2] 阳雨岑.多阵元卫星导航抗干扰技术与实现研究[D].成都：电子科技大学，2023.
[3] 黄治磊.宽带空时自适应抗干扰算法研究及实现[D].重庆：重庆大学，2023.
[4] 刘龙.空频极化联合域抗干扰技术研究与实现[D].西安：西北工业大学，2017.
[5] 李沂配.卫星导航阵列空时抗干扰技术研究与实现[D].西安：西安电子科技大学，2022.
基本信息:
DOI：10.16426/j.cnki.jcdzdk.2025.05.003
中图分类号:TN973
引用信息:
[1]冯皓,魏恭,龚利,等.四阵元空频抗干扰参考阵元自适应方法研究[J].舰船电子对抗,2025,48(05):13-15+60.DOI:10.16426/j.cnki.jcdzdk.2025.05.003.