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基于径向基神经网络的波束优化方法

任笑莹 王英民 王奇

任笑莹, 王英民, 王奇. 基于径向基神经网络的波束优化方法[J]. 电子与信息学报, 2021, 43(12): 3695-3702. doi: 10.11999/JEIT200793
引用本文: 任笑莹, 王英民, 王奇. 基于径向基神经网络的波束优化方法[J]. 电子与信息学报, 2021, 43(12): 3695-3702. doi: 10.11999/JEIT200793
Xiaoying REN, Yingmin WANG, Qi WANG. Beam Pattern Optimization Method Based on Radial Basis Function Neural Network[J]. Journal of Electronics & Information Technology, 2021, 43(12): 3695-3702. doi: 10.11999/JEIT200793
Citation: Xiaoying REN, Yingmin WANG, Qi WANG. Beam Pattern Optimization Method Based on Radial Basis Function Neural Network[J]. Journal of Electronics & Information Technology, 2021, 43(12): 3695-3702. doi: 10.11999/JEIT200793

基于径向基神经网络的波束优化方法

doi: 10.11999/JEIT200793
基金项目: 国家自然科学基金(51879221)
详细信息
    作者简介:

    任笑莹:女,1989年生,博士生,主要研究方向为信号处理、人工智能算法

    王英民:男,1963年生,教授,主要研究方向为信号处理、水声通信、声呐系统设计

    王奇:男,1983年生,副研究员,主要研究方向为信号处理、目标检测与跟踪

    通讯作者:

    王英民 ywang@nwpu.edu.cn

  • 中图分类号: TN911.7

Beam Pattern Optimization Method Based on Radial Basis Function Neural Network

Funds: The National Natural Science Foundation of China (51879221)
  • 摘要: 针对不规则结构阵列的波束图容易出现旁瓣升高的问题,该文提出了一种基于径向基神经网络(RBFNN)的波束设计方法。该方法根据Olen波束形成中阵元位置和阵列加权向量之间的非线性关系,利用径向基神经网络输入和输出之间的非线性映射特性,以任意结构阵列的实际阵元位置为基准,构造带有误差的阵元位置样本集。之后利用Olen法计算阵列加权向量并进行波束形成,当波束图满足设计要求时,记录对应的位置和阵列加权向量作为径向基神经网络训练数据的输入样本和输出样本,并使用训练后的网络得到实际阵列的加权向量。最后,对直线阵、弧形阵、随机环形阵进行了波束优化设计,结果这几种阵形的波束都可以满足设计要求,证明了所提方法的有效性。
  • 图  1  RBFNN的网络结构

    图  2  隐含层神经元模型

    图  3  Gauss函数

    图  4  扩展速度对激励函数的影响

    图  5  直线阵

    图  6  直线阵的波束图

    图  7  弧形阵

    图  8  弧形阵的波束图

    图  9  随机环形阵

    图  10  随机环形阵的波束图

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出版历程
  • 收稿日期:  2020-09-08
  • 修回日期:  2021-09-21
  • 网络出版日期:  2021-10-27
  • 刊出日期:  2021-12-21

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