J4 ›› 2014, Vol. 41 ›› Issue (3): 33-40.doi: 10.3969/j.issn.1001-2400.2014.03.006

• 研究论文 • 上一篇    下一篇



  1. (西安电子科技大学 雷达信号处理国家重点实验室,陕西 西安  710071)
  • 收稿日期:2013-01-16 出版日期:2014-06-20 发布日期:2014-07-10
  • 通讯作者: 张学敬
  • 作者简介:张学敬(1988-),男,西安电子科技大学硕士研究生,E-mail: xjzhang7@163.com.
  • 基金资助:


Performance comparison between two different virtual transformations of the hemisphere conformal array

ZHANG Xuejing;YANG Zhiwei;LIAO Guisheng   

  1. (National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China)
  • Received:2013-01-16 Online:2014-06-20 Published:2014-07-10
  • Contact: ZHANG Xuejing



关键词: 共形阵列, 虚拟内插, 波达方向估计, 波束形成


The spatial steering vector of the conformal array usually does not have a Vandermonde structure, so that some fast high-resolution spatial-spectrum estimation methods which are suitable for uniform linear arrays or plane arrays cannot be directly applied to the conformal arrays. This paper adopts the idea of array manifold interpolation transformation and establishes two different transformation relations from a hemisphere conformal array to a rectangular array and a cross array, respectively. Then we comparatively study the performance of the virtual rectangular array and the virtual cross array on DOA (Direction of Arrival) estimation, adaptive beamforming and computational complexity. The applicable conditions of two kinds of virtual arrays are clearly confirmed by theoretical analysis and extensive simulation, and results of this paper can provide a reference for the engineering applications of conformal arrays.

Key words: conformal array, virtual interpolation, direction of arrival estimation, beamforming