Study on Two-Dimensional Sparse MIMO UWB Arrays for High Resolution Near-Field Imaging

被引：102

作者：

Zhuge, Xiaodong ^{[1
]}

Yarovoy, Alexander G. ^{[1
]}

机构：

[1] Delft Univ Technol, Int Res Ctr Telecommun & Radar, NL-2628 CD Delft, Netherlands

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2012年 / 60卷 / 09期

关键词：

Multiple-input-multiple-output (MIMO); near-field; sparse array; two-dimensional transducer array; ultrawideband (UWB); volumetric imaging; RADIO TELESCOPE; DESIGN; OPTIMIZATION; PERFORMANCE; PATTERN; SYSTEM; SAR;

D O I：

10.1109/TAP.2012.2207031

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：

A novel generic topology for two-dimensional (2-D) sparse multiple-input-multiple-output (MIMO) ultrawideband (UWB) arrays is suggested. Based on the proposed topology, a 2-D MIMO UWB array for high-resolution short-range imaging is developed. The focusing properties of this array are studied both theoretically and experimentally and are shown to be superior to those of arrays with a similar number of antennas and based on known topologies such as Mills Cross, rectangular, and spiral configurations. Decisive impact of a large operational bandwidth and short focusing distance on MIMO array performance is shown. Imaging capabilities of the proposed array are experimentally demonstrated for distributed targets.

引用

页码：4173 / 4182

页数：10

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