A Combinatorial Method for Antenna Array Design in Minimum Redundancy MIMO Radars

Author

Dong, Jian ; Li, QingXia ; Guo, Wei

Author_Institution

Dept. of Electron. & Inf. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

8

fYear

2009

fDate

7/1/1905 12:00:00 AM

Firstpage

1150

Lastpage

1153

Abstract

In this letter, the antenna array design problem in minimum redundancy (MR) multiple-input-multiple-output (MIMO) radars is addressed, which seeks to maximize the virtual array aperture for a given number of transmitting and receiving (Tx/Rx) elements. Based on difference bases and cyclic difference sets (CDSs), a combinatorial method is proposed for the optimal design of Tx/Rx antenna arrays. The theoretical limits of the redundancy of MIMO virtual arrays constructed by the method for both one-dimensional and two-dimensional cases are derived. Numerical results are also presented, showing notable improvement in the spatial resolution of MIMO radar system over those reported in the literature.

Keywords

antenna arrays; combinatorial mathematics; radar antennas; receiving antennas; transmitting antennas; MIMO virtual array aperture; antenna array design; combinatorial method; cyclic difference set; minimum redundancy; multiple-input-multiple-output radar; receiving antenna arrays; spatial resolution; transmitting antenna arrays; Cyclic difference set (CDS); difference basis; minimum redundancy (MR); multiple-input–multiple-output (MIMO); sparse antenna arrays; virtual array;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2009.2034762

Filename

5290079