Transmit and Receive Array Structure Design of Two-Dimensional hybrid Phased-MIMO Radar based on Nested Array

Tianhao Cheng, Buhong Wang, Qiaoge Liu, Jiwei Tian, Yansong Wang
2018 MATEC Web of Conferences  
In order to reduce the loss of Degree of Freedom (DOF) brought by the transmit subarray splitting of twodimensional hybrid phased-MIMO radar, this paper presents a design method of transmitting and receiving array based on nested array structure. Firstly, a two-dimensional hybrid phased-MIMO radar transmitting array based on one-dimensional nested array is presented. On this basis, the receiving end is set as a nested array, and finally a virtual array and difference coarray are formed to
more » ... are formed to expand the number of virtual array elements. The expansion increases the DOF of arrays while preserving the advantages of hybrid phased-MIMO radars. Simulation experiments show that compared with the traditional and coprime hybrid phased-MIMO radar, the proposed method can effectively improve the array DOF and Direction-of-Arrival (DOA) estimation accuracy.
doi:10.1051/matecconf/201823202052 fatcat:xmgu7trrgvgh7lfrpmd7w2rpiy