OPTIMUM SPARSE ARRAY DESIGN FOR MAXIMIZING SIGNAL-TO-NOISE RATIO IN PRESENCE OF LOCAL SCATTERINGS

被引：0

作者：

Hamza, Syed A. ^{[1
]}

Amin, Moeness G. ^{[1
]}

Fabrizio, Giuseppe ^{[2
]}

机构：

[1] Villanova Univ, Ctr Adv Commun, Villanova, PA 19085 USA

[2] Def Sci & Technol Grp, Edinburgh, SA 5111, Australia

来源：

2018 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP) | 2018年

关键词：

MaxSNR; MaxSINR; ULA; sparse array; Gaussian distribution; circularly spread sources; OF-ARRIVAL; ANTENNA; CONFIGURATIONS; MODEL;

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Optimum sparse array design for maximum output signal-to-noise ratio (MaxSNR) and signal-to-interference ratio (MaxSINR) have been shown to yield significant performance improvement compared to random or environmental-independent structured arrays, with the same number of antennas. We examine the MaxSNR problem in presence of local scatterings which may follow specific deterministic or statistical scattering models. It is shown that if the scatterers assume a Gaussian distribution centered around the source angular position, the optimum array configuration for maximizing the SNR is the commonly used uniform linear array (ULA). If the scatterers circulate the source, the optimum design yields sparse array topologies with superior performance over ULAs. Simulation results are presented to show the effectiveness of array configurability in the case of both Gaussian and circularly spread sources.

引用

页码：3330 / 3334

页数：5

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