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2022-09-23
A Sparse Array Design Method Based on Direct-Connection of 4 Uniform Linear Arrays
By
Progress In Electromagnetics Research M, Vol. 113, 213-224, 2022
Abstract
In order to obtain the analytical expression of the position of sparse array sensors under the condition of a given total array sensor number, a sparse array design method based on direct-connection of 4 uniform linear arrays (DCUA4) is proposed. By using the only known parameter of the total array sensor number, the sensor number and spacing parameters of four subarrays are obtained by mathematical operation, then the four subarrays are directly connected to realize the design of sparse array. It is proved that the aperture of the sparse array is large, and there are no holes. Because all the sensors are allocated to four subarrays, the number of small spacing sensor pairs in the array is controlled The performance of the proposed array is simulated based on the spatial smoothing MUSIC (SS-MUSIC) algorithm. The simulation results show that the proposed DCUA4 can produce a large virtual array aperture, realize high-precision direction of arrival (DOA) estimation under underdetermined conditions, and resist the influence of low mutual coupling.
Citation
Liye Zhang Weijia Cui Chunxiao Jian Bin Ba Hao Li , "A Sparse Array Design Method Based on Direct-Connection of 4 Uniform Linear Arrays," Progress In Electromagnetics Research M, Vol. 113, 213-224, 2022.
doi:10.2528/PIERM22070402
http://www.jpier.org/PIERM/pier.php?paper=22070402
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