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基于稀疏面阵的低复杂度三维信源定位算法

吴皓威 舒畅 欧静兰 杨士中

吴皓威, 舒畅, 欧静兰, 杨士中. 基于稀疏面阵的低复杂度三维信源定位算法[J]. 电子与信息学报, 2021, 43(8): 2207-2213. doi: 10.11999/JEIT190779
引用本文: 吴皓威, 舒畅, 欧静兰, 杨士中. 基于稀疏面阵的低复杂度三维信源定位算法[J]. 电子与信息学报, 2021, 43(8): 2207-2213. doi: 10.11999/JEIT190779
Haowei WU, Chang SHU, Jinglan OU, Shizhong YANG. A Three-dimensional Source Location Algorithm Based on Sparse Planar Array with Low Complexity[J]. Journal of Electronics & Information Technology, 2021, 43(8): 2207-2213. doi: 10.11999/JEIT190779
Citation: Haowei WU, Chang SHU, Jinglan OU, Shizhong YANG. A Three-dimensional Source Location Algorithm Based on Sparse Planar Array with Low Complexity[J]. Journal of Electronics & Information Technology, 2021, 43(8): 2207-2213. doi: 10.11999/JEIT190779

基于稀疏面阵的低复杂度三维信源定位算法

doi: 10.11999/JEIT190779
基金项目: 重庆市科技创新专项院士基金(cstc2018zdcy-yszxX0001, cstc2017zdcy-yszx0009),民用航天十三五预研项目(D010201)
详细信息
    作者简介:

    吴皓威:男,1981年生,副研究员,研究方向为宽带无线通信、阵列信号处理等

    舒畅:男,1996年生,硕士生,研究方向为阵列信号处理、微波输能等

    欧静兰:女,1981年生,副教授,研究方向为宽带无线通信、中继通信等

    杨士中:男,1937年生,教授,中国工程院院士,研究方向为飞行器测控、遥感传输等

    通讯作者:

    吴皓威 wuhaowei@cqu.edu.cn

  • 中图分类号: TN911.7

A Three-dimensional Source Location Algorithm Based on Sparse Planar Array with Low Complexity

Funds: The Academician Fund of Chongqing Science and Technology Innovation Guidance Project (cstc2018zdcy-yszxX0001, cstc2017zdcy-yszx0009), The Advanced Research Project of Civil Aerospace Technologies in 13th Five-year Plan (D010201)
  • 摘要: 针对3维信源定位中阵列结构过于复杂、算法复杂度过高、谱峰搜索范围过大的问题,该文提出一种基于互素线阵互素平移的稀疏面阵(CLACS-SPA)的3维降秩MUSIC算法(RARE-MUSIC)。所提CLACS-SPA拥有中心对称的互素稀疏面阵结构,相较于同口径均匀面阵结构减少了大量的阵元,降低了阵列的结构复杂度;以CLACS-SPA为基础的3维RARE-MUSIC算法利用泰勒公式将接收信号中的方向信息与距离信息进行分离估计,从而将3维谱峰搜索转化为方位角俯仰角的2维搜索和距离项的1维搜索,降低了定位算法的计算复杂度。仿真分析表明:在口径与定位算法相同条件下,与均匀面阵结构相比,所提结构的计算复杂度降低了1~2个数量级;在相同口径与CLACS-SPA结构下,与经典3维MUSIC算法相比,所提算法的复杂度降低了2~3个数量级;在相同口径和阵元数量条件下,与经典3维MUSIC算法相比,所提算法不仅降低了计算复杂度,而且提升了方位角与俯仰角的测量精度。
  • 图  1  稀疏面阵阵元构造图

    图  2  信源位置测量结果图

    图  3  算法复杂度随口径变化对比图

    图  4  信源位置测量的RMSE与SNR关系图

    图  5  信源位置测量的RMSE与互素因子的关系

    表  1  相同口径下,CLACS-SPA和UPA的阵元数量

    UPA CLACS-SPA
    ${d_a} = a\lambda $$a = 1$$a = 3$$a = 5$$a = 11$
    ${d_b} = b\lambda $$b = 1$$b = 4$$b = 6$$b = 12$
    阵元数量6251698125
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-10-09
  • 修回日期:  2021-05-24
  • 网络出版日期:  2021-06-16
  • 刊出日期:  2021-08-10

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