改进型圆面阵的快速波束形成算法设计

doi:10.3969/j.issn.1000-1093.2017.05.016

兵工学报 ›› 2017, Vol. 38 ›› Issue (5): 959-967.doi: 10.3969/j.issn.1000-1093.2017.05.016

改进型圆面阵的快速波束形成算法设计

于涤非，张春华，黄勇

(中国科学院大学, 北京 100190)

收稿日期:2016-08-11 修回日期:2016-08-11 上线日期:2017-07-03
通讯作者: 张春华(1962—)，男，研究员，博士生导师 E-mail:zch@mail.ioa.ac.cn
作者简介:于涤非(1982—)，男，博士研究生。 E-mail: nacassoce@163.com
基金资助:
国家自然科学基金项目(11304343)

Design of Fast Beam Forming of Improved Circular Planar Array

YU Di-fei， ZHANG Chun-hua， HUANG Yong

(University of Chinese Academy of Sciences, Beijing 100190, China)

Received:2016-08-11 Revised:2016-08-11 Online:2017-07-03

摘要/Abstract

摘要： 为降低基于圆面阵的三维成像声纳波束形成算法的运算量，提出改进圆面阵布阵阵型设计及优化波束方位的方法。改进型圆面阵由多条通过圆心的线阵组成，其波束形成等效于所有线阵波束形成结果的叠加；通过对波束方位进行优化，使得每一条线阵的波束形成过程等效为等长度的一维快速傅里叶变换运算。仿真结果表明，改进型圆面阵的波束形成运算量较直接计算显著降低。运用改进型圆面阵可显著降低三维成像声纳信号处理系统的复杂度,提高了声纳的综合性能。

关键词: 声学, 三维成像声纳, 圆面阵, 波束形成, 快速傅里叶变换

Abstract: In order to reduce the computational complexity of beam forming of 3D imaging sonar based on circular planar array, a method of improving the array design and optimizing the beam azimuth is proposed. The improved circular array consists of a plurality of linear arrays passing through the center, and the beam forming is equivalent to the superposition of the beam forming of all the linear arrays. By optimizing the beam azimuth, the beam forming process of each linear array is equivalent to a one-dimensional fast Fourier transform operation of equal length. The simulated results show that the beam forming computation of the improved circular array is significantly lower than that of the direct calculation. The use of improved circular array can significantly reduce the complexity of the signal processing system and improve the comprehensive performance of 3D imaging sonar. Key

Key words: acoustics, 3Dunderwatersonar, circulararrays, beampattern, fastFouriertransform

中图分类号:

于涤非，张春华，黄勇. 改进型圆面阵的快速波束形成算法设计[J]. 兵工学报, 2017, 38(5): 959-967.

YU Di-fei， ZHANG Chun-hua， HUANG Yong. Design of Fast Beam Forming of Improved Circular Planar Array[J]. Acta Armamentarii, 2017, 38(5): 959-967.

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改进型圆面阵的快速波束形成算法设计

Design of Fast Beam Forming of Improved Circular Planar Array

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