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阵元位置互质的线性阵列:阵列校正和波束形成

梁梦薇 何劲 舒汀 郁文贤

梁梦薇, 何劲, 舒汀, 郁文贤. 阵元位置互质的线性阵列:阵列校正和波束形成[J]. 电子与信息学报, 2024, 46(1): 240-248. doi: 10.11999/JEIT221539
引用本文: 梁梦薇, 何劲, 舒汀, 郁文贤. 阵元位置互质的线性阵列:阵列校正和波束形成[J]. 电子与信息学报, 2024, 46(1): 240-248. doi: 10.11999/JEIT221539
LIANG Mengwei, HE Jin, SHU Ting, YU Wenxian. Linear Coprime Sensor Location Arrays: Array Calibration and Beamforming[J]. Journal of Electronics & Information Technology, 2024, 46(1): 240-248. doi: 10.11999/JEIT221539
Citation: LIANG Mengwei, HE Jin, SHU Ting, YU Wenxian. Linear Coprime Sensor Location Arrays: Array Calibration and Beamforming[J]. Journal of Electronics & Information Technology, 2024, 46(1): 240-248. doi: 10.11999/JEIT221539

阵元位置互质的线性阵列:阵列校正和波束形成

doi: 10.11999/JEIT221539
基金项目: 国家自然科学基金(61771302)
详细信息
    作者简介:

    梁梦薇:女,博士生,主要研究方向为阵列信号处理、雷达信号处理

    何劲:男,副研究员,主要研究方向为阵列信号处理、雷达信号处理

    舒汀:男,副研究员,主要研究方向为阵列信号处理、雷达信号处理

    郁文贤:男,教授,主要研究方向为雷达信号处理、遥感信号处理

    通讯作者:

    何劲 jinhe@sjtu.edu.cn

  • 中图分类号: TN911

Linear Coprime Sensor Location Arrays: Array Calibration and Beamforming

Funds: The National Natural Science Foundation of China (61771302)
  • 摘要: 该文研究了阵元位置互质的线性阵列(CLA)的阵列校正和波束形成问题。在假设CLA天线单元部分校准的条件下,基于同时干扰定位与阵列校正(SILAC)技术,设计了一种适用于CLA的阵列校正和波束形成方法:CLA-SILAC-INCM算法。从理论上分析证明了,当CLA中包含有Lc≥3个完全校准的天线单元,使用SILAC技术可以高精度无模糊地实现干扰源角度和阵列天线幅相误差估计,并在此基础上完成干扰噪声协方差矩阵(INCM)重建和波束形成最优权向量构造。通过仿真实验验证了,提出的CLA-SILAC-INCM算法具有比其他常用算法更好的性能,尤其是信噪比接近干噪比时,CLA-SILAC-INCM算法的优势更为明显。
  • 图  1  阵列的信号接收示意图

    图  2  CLA各天线单元幅度和相位的标准值、实际值和估计值

    图  3  阵列完全校正时的波束形成

    图  4  阵列存在方向误差时的波束形成

    图  5  存在随机幅度相位误差时波束形成

    图  6  复杂环境下的波束形成

    图  7  目标探测多普勒图

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出版历程
  • 收稿日期:  2022-12-13
  • 修回日期:  2023-05-25
  • 网络出版日期:  2023-06-09
  • 刊出日期:  2024-01-17

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