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Off-grid Sparse Array Synthesis with FOCUSS Algorithm
YANG Peng * #
School of Electronic Enginerring, University of Electronic Science and Technology of China
*Correspondence author
#Submitted by
Subject:
Funding: SRFDP （No.No. 2012018520004）, Fundamental Research Funds for the Central Universities （No.No. ZYGX2012J010）, NASF （No.No. 61301056, 11176007, 61231001）, Sichuan Provincial Science and technology support program （No.No. 2013HH0047）
Opened online:21 November 2014
Accepted by: none
Citation: YANG Peng.Off-grid Sparse Array Synthesis with FOCUSS Algorithm[OL]. [21 November 2014] http://en.paper.edu.cn/en_releasepaper/content/4618902
 
 
Antenna array synthesis with a minimum number of antenna elements is of interest in many applications. In this work, an iterative method based on FOCUSS algorithm, for the design of sparse arrays is proposed. The FOCUSS algorithm is a weighted Lp-norm (0 < p < 1) minimization which can give the locations and excitations of sparse elements at the same time under a certain constraint. In order to balance the accuracy and speed, an off-grid model is introduced into this algorithm. Numerical simulations are presented to show the high precision and efficiency of this method to achieve the desired radiation pattern with sparse non-uniform linear array.
Keywords:Elecromagnetic and microwave engineering; Sparse array synthesis; FOCUSS algorithm; off-gird model; sparse signal reconstruction
 
 
 

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