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Antenna geometry strategy with prior information for direction-finding MIMO radars

Weidong Jiang, Haowen Chen*, and Xiang Li   

  1. College of Electronics Science and Engineering, National University of Defense Technology, Changsha 410073, China
  • Online:2015-06-25 Published:2010-01-03


The antenna geometry strategy for direction finding (DF) with multiple-input multiple-output (MIMO) radars is studied. One case, usually encountered is practical applications, is considered. For a directional antenna geometry with a prior direction, the trace-optimal (TO) criterion (minimizing the trace) on the average Cram´er-Rao bound (CRB) matrix is employed. A qualitative explanation for antenna geometry is provided, which is a combinatorial optimization problem. In the numerical example section, it is shown that the antenna geometries, designed by the proposed strategy, outperform the representative DF antenna geometries.