Synthesis of pattern reconfigurable sparse arrays via sequential convex optimizations for monopulse radar applications

Zhengdong Qi, Yechao Bai, Qiong Wang, Xinggan Zhang and Hao Chen

Journal of Electromagnetic Waves and Applications, 2020, vol. 34, issue 2, 183-200

Abstract: In this paper, a new array synthesis approach is developed for the design of reconfigurable sparse arrays radiating sum and difference patterns. The proposed approach provides a significant reduction in the complexity of the beam forming network, which is fulfilled by reducing the number of antenna elements in the array and sharing some excitation weights for the sum and difference channels. An iterative scheme is used where the prescribed pattern response in the mainlobe is cast as a multi-convex problem at each step that the nonconvex lower bound constraint is relaxed while including a reweighted $l_{1} $l1-norm minimization based on the magnitudes of the elements. Thus a better performance of beam pattern (e.g. narrower 3-dB beamwidth, lower maximum sidelobe levels) and a smaller number of elements can be obtained compared with the case of uniformly spaced array. The practical array imperfections are also compensated in the optimization stage by using worst-case performance optimization technique. Numerical tests are presented and discussed to validate the versatility and effectiveness of the proposed approach.

Date: 2020
References: Add references at CitEc
Citations:

Downloads: (external link)
http://hdl.handle.net/10.1080/09205071.2019.1693910 (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:taf:tewaxx:v:34:y:2020:i:2:p:183-200

Ordering information: This journal article can be ordered from
http://www.tandfonline.com/pricing/journal/tewa20

DOI: 10.1080/09205071.2019.1693910

Access Statistics for this article

Journal of Electromagnetic Waves and Applications is currently edited by Mohamad Abou El-Nasr and Pankaj Kumar Choudhury

More articles in Journal of Electromagnetic Waves and Applications from Taylor & Francis Journals
Bibliographic data for series maintained by Chris Longhurst ().