Nested Inter-element Spacing Constrained Array

Jiangkun Yu, Yougen Xu, Shuli Shi, Zhiwen Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Due to the mutual coupling effect, the performance of direction of arrival estimation and adaptive beamforming can be reduced to a certain extent. The interelement spacing constraint (ISC) array can maintain low mutual coupling via constraining the minimum inter-element spacing. However, the ISC array has no closed-form expressions for the sensor positions, so designing such arrays for large number of sensors is difficult. In this paper, we will design a nested interelement spacing constrained array (N-ISC) using the ISC and other sparse arrays to meet the requirement for the large number of sensors. Numerical simulations are conducted to verify the superiority of the N-ISC array.

Original languageEnglish
Title of host publication2021 CIE International Conference on Radar, Radar 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1616-1620
Number of pages5
ISBN (Electronic)9781665498142
DOIs
Publication statusPublished - 2021
Event2021 CIE International Conference on Radar, Radar 2021 - Haikou, Hainan, China
Duration: 15 Dec 202119 Dec 2021

Publication series

NameProceedings of the IEEE Radar Conference
Volume2021-December
ISSN (Print)1097-5764
ISSN (Electronic)2375-5318

Conference

Conference2021 CIE International Conference on Radar, Radar 2021
Country/TerritoryChina
CityHaikou, Hainan
Period15/12/2119/12/21

Keywords

  • degrees of freedom
  • difference co-array
  • direction of arrival estimation
  • mutual coupling
  • sparse array

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