Wideband targets beam-space DOA estimation based on genetic algorithm

JIN Yong; CHENG Yun-zhi; ZHOU Ke

doi:10.13873/j.1000-97872008.07.009

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Wideband targets beam-space DOA estimation based on genetic algorithm

更新时间：2025-09-11

- Wideband targets beam-space DOA estimation based on genetic algorithm
- Issue 7, Pages: 53-55+58(2008)
- 作者机构：
  
  河南大学先进控制与智能信息研究所
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872008.07.009
  CLC： TN911
- Published：2008
- 稿件说明：
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[1]金勇,程云志,周柯.基于遗传算法的宽带目标波束空间DOA估计[J].传感器与微系统,2008(07):53-55+58.

JIN Yong, CHENG Yun-zhi, ZHOU Ke. Wideband targets beam-space DOA estimation based on genetic algorithm[J]. 2008, (7): 53-55+58.
[1]金勇,程云志,周柯.基于遗传算法的宽带目标波束空间DOA估计[J].传感器与微系统,2008(07):53-55+58. DOI： 10.13873/j.1000-97872008.07.009.

JIN Yong, CHENG Yun-zhi, ZHOU Ke. Wideband targets beam-space DOA estimation based on genetic algorithm[J]. 2008, (7): 53-55+58. DOI： 10.13873/j.1000-97872008.07.009.

摘要

提出一种基于遗传算法的宽带目标到达方位（DOA）估计新方法

该方法首先通过傅立叶变换方法设计频域恒定束宽转换矩阵

并使用该矩阵将阵元空间的数据转换到波束空间

同时

利用宽带波束空间遗传算法进行DOA估计。计算机仿真表明:在低信噪比条件下该算法相比于CSS类子空间算法、CSS类最大似然算法和阵元空间遗传算法有更高的分辨概率

更小的均方误差。

Abstract

A new wideband beam-space DOA estimation approach based on genetic algorithm is proposed.Frequency invariant beamformer transform matrix is designed by using fast Fourier transform.Array data is transformed to beam-space using this matrix.The beam-space genetic algorithm is applied in beam-space to estimate DOA of wideband signals.The simulations show that beam-space genetic algorithm has higher resolution

smaller mean square error better than sub-space algorithm

maximum likelihood algorithm and array genetic algorithm in low SNR ranges.

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