Correction of failure in antenna array using matrix pencil technique*Project sypported by the Research Management Centre (RMC), School of Postgraduate Studies (SPS), Communication Engineering Department, Faculty of Electrical Engineering (FKE), Universiti Teknologi Malaysia (UTM), Johor Bahru (Grant Nos. 12H09 and 03E20). (June 2017)

• Record Type: Journal Article
• Authors: Khan, SU; Rahim, MKA
• Is Part Of: Chinese physics B. Volume 26:Number 6(2017)
• Publication Date: 2017-06
• Subjects: array correction -- low rank estimation -- matrix pencil technique -- singular value decomposition; 84.40.Ba -- 84.40.Xb -- 33.20.Bx; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1674-1056/26/6/068401
• Languages: English
• ISSNs: 1674-1056

Abstract

Abstract : In this paper a non-iterative technique is developed for the correction of faulty antenna array based on matrix pencil technique (MPT). The failure of a sensor in antenna array can damage the radiation power pattern in terms of sidelobes level and nulls. In the developed technique, the radiation pattern of the array is sampled to form discrete power pattern information set. Then this information set can be arranged in the form of Hankel matrix (HM) and execute the singular value decomposition (SVD). By removing nonprincipal values, we obtain an optimum lower rank estimation of HM. This lower rank matrix corresponds to the corrected pattern. Then the proposed technique is employed to recover the weight excitation and position allocations from the estimated matrix. Numerical simulations confirm the efficiency of the proposed technique, which is compared with the available techniques in terms of sidelobes level and nulls.