Improved design method of moving three-parallel coprime array
Aiming at the problem of holes in virtual array expansion caused by moving three-parallel coprime array,an improved design of moving three-parallel coprime array is proposed.By analyzing the hole positions of virtual array and optimizing the array element placement,the number of continuous holes in virtual array con-structed in static state is less than two,and the redundancy in constructing virtual array is reduced as much as pos-sible.The idea of moving array is used to fill the holes in the virtual array,and the virtual array with full continu-ity and maximum freedom is obtained,and the freedom of the array is greatly improved.The simulation results show the effectiveness of the proposed array design method,and can obtain a virtual array with higher degrees of freedom and higher direction finding accuracy under the same physical elements.
coprime arrayarray designdegree of freedom extensionDOA estimation
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