Optimum Partitioning of a Phased-MIMO Radar Array Antenna

被引：21

作者：

Alieldin, Ahmed ^{[1
]}

Huang, Yi ^{[1
]}

Saad, Walid M. ^{[2
]}

机构：

[1] Univ Liverpool, Dept Elect Engn & Elect, Liverpool L69 3GJ, Merseyside, England

[2] Egyptian Air Def Tech Res & Dev Ctr, South Cairo 11618, Egypt

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2017年 / 16卷

关键词：

Array antenna; coherent gain; diversity gain; optimum scheme; phased-multiple-input-multiple-output (phased-MIMO); radar; sidelobe level;

D O I：

10.1109/LAWP.2017.2714866

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 a phased-multiple-input-multiple-output radar, the transmit antenna array is divided into multiple subarrays that are allowed to be overlapped. In this letter, amathematical formula for optimum partitioning scheme is derived to determine the optimum division of an array into subarrays and number of elements in each subarray. The main concept of this new scheme is to place the transmit beam pattern nulls at the diversity beam pattern peak sidelobes and place the diversity beam pattern nulls at the transmit beam pattern peak sidelobes. This is compared to other equal and unequal schemes. It is shown that the main advantage of this optimum partitioning scheme is the improvement of the main-to-sidelobe levels without reduction in beam pattern directivity. Also, signal- to- noise ratio is improved using this optimum partitioning scheme.

引用

页码：2287 / 2290

页数：4

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