Conjugate Virtual Array Beamforming Method

NI Shu-yan; CHENG Nai-ping; NI Zheng-zhong

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Conjugate Virtual Array Beamforming Method

更新时间：2025-07-16

- Conjugate Virtual Array Beamforming Method
- Acta Electronica Sinica Vol. 39, Issue 9, Pages: 2120-2124(2011)
- 作者机构：
  
  1. 装备指挥技术学院,北京,101416
  2. 遥感信息研究所,北京,100192
  3. 装备指挥技术学院北京,101416
  4. 遥感信息研究所北京,100192
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.7
- Published：2011
- 稿件说明：
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NI Shu-yan, CHENG Nai-ping, NI Zheng-zhong. Conjugate Virtual Array Beamforming Method[J]. Acta Electronica Sinica, 2011, 39(9): 2120-2124.
DOI：

NI Shu-yan, CHENG Nai-ping, NI Zheng-zhong. Conjugate Virtual Array Beamforming Method[J]. Acta Electronica Sinica, 2011, 39(9): 2120-2124. DOI：

摘要

根据MASK、BPSK和AM等非圆信号的实值特性

利用实际阵列接收信号的共轭将阵列向外扩展

提出一种适用于均匀线阵的共轭虚拟阵列波束形成方法

并对其自适应波束性能进行了分析和改进

在此基础上提出一种快速实现方法.该虚拟阵列的构造方式能同时保留时间信息和方位信息

用于自适应波束形成中

可以改善波束图形状

提高阵列增益

对抗超自由度干扰.计算机仿真验证了该虚拟阵列波束形成方法的优越性.

Abstract

Based on real-valued property of the non-circular sources

a new virtual array beamforming method for the uniform linear array was proposed by extending the original array utilizing the conjugate data of the real array.By analyzing the performance of the method in adaptive beamforming

some improvements were made and a computation saving method was proposed.Preserving both the time and the direction information

the virtual array is very applicable for adaptive beamforming.It provides much better performance than the original array

such as better beam pattern

higher array gain and the abilities to restrain interferes more than the freedom degrees.Several computer simulations were provided for illustrating the advantages of the proposed method.

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