Title :
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
fDate :
7/1/1905 12:00:00 AM
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;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2009.2034762
