A SYNTHESIS METHOD FOR ROBUST FREQUENCY-INVARIANT VERY LARGE BANDWIDTH BEAMFORMING

被引：0

作者：

Crocco, Marco ^{[1
]}

Trucco, Andrea ^{[1
]}

机构：

[1] Univ Genoa, Dept Biophys & Elect Engn DIBE, I-16145 Genoa, Italy

来源：

18TH EUROPEAN SIGNAL PROCESSING CONFERENCE (EUSIPCO-2010) | 2010年

关键词：

UNEQUALLY SPACED ARRAYS; DESIGN; OPTIMIZATION; ERRORS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper a mixed stochastic and analytic method is proposed to synthesize a robust filter-and-sum beamforming system working with an array that is, at the same time, superdirective and undersampled. The method allows to obtain a broadband beam pattern with an optimal trade-off among directivity and frequency-invariance, over a very large bandwidth. The method jointly optimizes the sensors' positions (providing an aperiodic layout) and the coefficients of the filters used to process the signals, deploying a limited number of sensors. The simulation results show the performance and the robustness to array imperfections of the obtained solutions, highlighting the improvement over the literature methods.

引用

页码：2096 / 2100

页数：5

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