A New Bearing Estimation Method for Underwater Moving Arrays in the Context of Strong Interferences

您当前的位置：

首页 >

文章列表页 >

A New Bearing Estimation Method for Underwater Moving Arrays in the Context of Strong Interferences

更新时间：2025-07-09

- A New Bearing Estimation Method for Underwater Moving Arrays in the Context of Strong Interferences
- Vol. 44, Issue 12, Pages: 71-75(2010)
- 作者机构：
  
  1. 西北工业大学航海学院,西安,710072
  2. 河南科技大学电子信息工程学院,河南,洛阳,471003
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.7
- Online First：10 December 2010，
  
  Published：2010
- 稿件说明：
移动端阅览
A New Bearing Estimation Method for Underwater Moving Arrays in the Context of Strong Interferences[J]. 2010, 44(12): 71-75.
DOI：

A New Bearing Estimation Method for Underwater Moving Arrays in the Context of Strong Interferences[J]. 2010, 44(12): 71-75. DOI：

摘要

针对水下存在方位不确定的强干扰源时基于合成孔径技术的多目标方位估计方法失效的问题

提出一种基于稳健卡朋波束形成器(RCB)的波束域处理技术的扩展拖曳阵测量方法(RCB-ETAM).该方法先利用物理线列阵的直线运动特点和水中信号的相干性

通过对不同时段的数据进行相位补偿将物理阵的数据矩阵合成更长孔径的虚拟阵的数据矩阵

然后根据虚拟阵数据和干扰源方位

使用RCB自适应调整虚拟阵元权值在感兴趣的范围内形成若干个波束

每个波束在干扰源方位形成零陷从而减小干扰对波束输出结果的影响

最后将虚拟阵数据转换到波束域

使用常规波束形成方法得到目标方位.仿真结果表明

与ETAM方法相比

RCB-ETAM的抗强干扰能力有了很大提高

在ETAM完全失效的情况下

依然能够给出目标方位的准确估计.

Abstract

A new method called RCB-ETAM is proposed to solve the problem that the conventional passive aperture-synthesis methods for multi-target bearing estimation generally fail in the context of strong interferences. The method exploits the merits of beamspace processing techniques based on robust Capon beamformer(RCB)and the effective data restructuring ability of ETAM(Extended Towed Array Measurements). The method consists of following steps: The phases of different data section of the physical array are compensated to synthesize into a data matrix corresponding to a much longer virtual array by using advantage of the array linear movement and coherence of underwater signals; Then according to the virtual array data and directions of interferences

RCB method is used to adaptively adjust the weights for elements of virtual array such that several beams are formed in the scope of interest with each beam having deep nulls in the directions of interferences; Finally the virtual array data is transformed into the beam domain

and the conventional beamforming technique is used to find the target directions. Simulation results show that the proposed RCB-ETAM method has much better anti-interference ability than the conventional ETAM method

and yields quite correct bearing estimations even when ETAM completely fails.

关键词

Keywords

references

YEN Nai-Chyuan, CAREY W. Application of synthetic-aperture processing to towed-array data [J]. J Acoust Soc Am, 1989, 86(2): 754-765.

NUTTALL A H. The maximum likelihood estimator for acoustic synthetic aperture processing [J]. IEEE Journal of Oceanic Engineering, 1992, 17(1): 26-29.

STERGIOPOULOS S. Extended towed array processing by an overlap correlator [J]. J Acoust Soc Am, 1989, 86(1):158-171.

HOU Yunshan, HUANG Jianguo, JIANG Min, et al. Application of linear prediction technique to passive synthetic aperture processing [J/OL]. EURASIP Journal on Advances in Signal Processing,2010(2)[2010-03-27]. http∥www.hindawi.com/journals/asp/2010/751069.html.

侯云山,黄建国,金勇.被动合成阵列极大似然参数估计的快速算法研究[J].西安交通大学学报,2009, 43(12):106-110.

HOU Yunshan,HUANG Jianguo,JIN Yong.Fast algorithm of the maximum likelihood parameter estimation for passive synthetic arrays [J]. Journal of Xi'an Jiaotong University, 2009, 43(12):106-110.

侯云山,黄建国,张立杰,等.一种新的浅海目标方位估计方法[J].西安交通大学学报,2008, 42(10):1295-1299.

HOU Yunshan,HUANG Jianguo,ZHANG Lijie, et al. A novel bearing estimation method for shallow water targets [J]. Journal of Xi'an Jiaotong University, 2008, 42(10):1295-1299.

TIAN Zhi. Beamspace iterative quadratic WSF for DOA estimation [J]. IEEE Trans on Signal Processing, 2003, 10(6): 176-179.

LI Jian, STOICA P, WANG Zhisong. On robust capon beamforming and diagonal loading [J]. IEEE Trans. on Signal Processing, 2003, 51(7):1702-1715.

CAPON J. High resolution frequency-wavenumber spectrum analysis [J]. Proc of IEEE, 1969, 57(8):1408-1418.

ZOLTOWSKI D M, KAUTZ M G, SILVERSTEIN D S. Beamspace root-music [J]. IEEE Trans on Signal Processing,1993, 41(1):344-364.

子阵和相位平滑的相位差方向估计方法. 西安交通大学学报, 2010, 44(10):72-76.

被动合成阵列极大似然参数估计的快速方法. 西安交通大学学报, 2009, 43(12):106-110.

利用离去角度的无线传感器网络分布式节点定位方法. 西安交通大学学报, 2010, 44(2):61-66.

双选择性衰落信道下的改进型频域判决反馈均衡. 西安交通大学学报, 2010, 44(10):67-71.

无线传感器网络分布式射频干涉定位方法. 西安交通大学学报, 2009, 43(8):48-52.

一种适合任意阵列流型的相干信号波达方向估计算法. 西安交通大学学报, 2009, 43(6):72-75.

快速四阶累积量旋转不变子空间算法. 西安交通大学学报, 2009, 43(6):88-92.

三维参数联合估计的免疫记忆量子克隆算法. 西安交通大学学报, 2009, 43(4):75-79.

一种新的浅海目标方位估计方法. 西安交通大学学报, 2008, 42(10):1295-1299.

二维波达方向估计的非酉联合对角化方法. 西安交通大学学报, 2008, 42(6):747-750.

相关衰落多输入多输出系统的参数化信道估计. 西安交通大学学报, 2007, 41(12):1431-1435.

一种地震子波峰值频率的估计方法. 西安交通大学学报, 2007, 41(6):660-664.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

A Novel Bearing Estimation Method for Shallow Water Targets

Effects of Steam Addition on the Swirl Combustion and Emission Characteristics of Cracked Ammonia

Mechanism and Optimal Control Strategy for Hysteresis in Rapid Dehumidification Response of Indirect Thermal Systems in Electric Vehicles

Sensitivity Analysis of Foil Geometrical Parameters for the Third-Generation CO2 Gas Foil Bearings Based on Design of Experiments Method

Research on the Electrohydrodynamic Effects of Ionic Liquid-Modified Fuels

Related Author

侯云山

黄建国

张立杰

金勇

Related Institution

No data

⁰