Correction of failure in antenna array using matrix pencil technique

• 来源期刊: 中国物理B（英文版）
• 关键词: array correction low rank estimation matrix pencil technique singular value decomposition
• 年，卷（期）: 2017,（6）
• 页码范围: 491-498
• 页数: 8页
• 语种: 英文
• DOI: 10.1088/1674-1056/26/6/068401

摘要

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 pattem 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.