Title :
On Unique Localization of Multiple Targets by MIMO Radars
Author :
Chen, Huanting ; Yang, Jian ; Zhou, Weicheng ; Wang, Huifang ; Li, Xin
Author_Institution :
Research Institute of Space Electronics Information Technology in Electronics Science and Engineering School, National University of Defense Technology, Changes, China
fDate :
7/4/1905 12:00:00 AM
Abstract :
In this letter, we investigate the number of targets that can be uniquely localized by a direction-finding (DF) multiple-input–multiple-output (MIMO) radar system, often referred to as the parameter identification capacity (PIC), regardless of any certain DF algorithm. Using the dimension theory, we derive the PIC from a general measurement model. We show that the PIC of DF MIMO radar is determined not only by the antenna geometry configuration, but also by the number of independent processing intervals, unknown noise level, and the targets´ reflection coefficients. Finally, the PICs of four representative antenna geometries are investigated and compared.
Keywords :
Arrays; Geometry; MIMO radar; Noise level; Radar antennas; Reflection coefficient; Dimension theory; direction-finding (DF); multiple-input–multiple-output (MIMO) radar; parameter identification capacity (PIC);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2012.2212173
