Integrated Method of Multi-Target Detection and DOA Estimation by Exploiting Knowledge of Beam-Spectra Envelope

ZHANG Li-jie; HUANG Jian-guo; ZHANG Qun-fei

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Integrated Method of Multi-Target Detection and DOA Estimation by Exploiting Knowledge of Beam-Spectra Envelope

更新时间：2025-07-16

- Integrated Method of Multi-Target Detection and DOA Estimation by Exploiting Knowledge of Beam-Spectra Envelope
- Acta Electronica Sinica Vol. 37, Issue 12, Pages: 2823-2828(2009)
- 作者机构：
  
  1. 中船重工集团第710所,湖北,宜昌,443003
  2. 西北工业大学航海学院,陕西,西安,710072
  3. 中船重工集团第710所湖北宜昌,443003
  4. 西北工业大学航海学院陕西西安,710072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.7
- Published：2009
- 稿件说明：
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ZHANG Li-jie, HUANG Jian-guo, ZHANG Qun-fei. Integrated Method of Multi-Target Detection and DOA Estimation by Exploiting Knowledge of Beam-Spectra Envelope[J]. Acta Electronica Sinica, 2009, 37(12): 2823-2828.
DOI：

ZHANG Li-jie, HUANG Jian-guo, ZHANG Qun-fei. Integrated Method of Multi-Target Detection and DOA Estimation by Exploiting Knowledge of Beam-Spectra Envelope[J]. Acta Electronica Sinica, 2009, 37(12): 2823-2828. DOI：

摘要

提出一种基于波束扫描系统空间谱输出包络信息的水声信号目标检测与方位估计一体化方法.该方法在能量检测的基础上

利用二次包络3dB宽度检测模型判断每个谱峰内的目标数目

并通过二维Capon谱搜索估计目标方位.千岛湖试验结果表明

与传统算法相比

提高了低信噪比下的目标检测和方位估计性能.

Abstract

An integrated method of acoustic signal detection and direction-of-arrival (DOA) estimation is proposed.As exploiting the beam-spectra envelop (BE) knowledge of the spatial spectrum outputted by beam scanning system

it is named as BE method

in which

based on the results of energy detection

the 3dB-width information of spectral peaks is used further to detect the source number in each peak

and the DOAs are estimated by 2-D Capon searching.The Qiandao Lake experimental results show that

comparing with traditional algorithms

the performance of target detection and DOA estimation is improved at lower SNRs.

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