EURASIP Journal on Advances in Signal Processing | |
2-D DOA estimation method based on coprime array MIMO radar | |
Aisuo Jin1  Chuantang Ji1  Fei Zhang1  Zijing Zhang1  Yi Wang2  | |
[1] School of Electronic and Information, Jiangsu University of Science and Technology, 212003, Zhenjiang, China;School of Intelligent Engineering, Zhengzhou University of Aeronautics, 450046, Zhengzhou, China; | |
关键词: Two-dimensional DOA; MIMO; Coprime array; Sparse array; Compressed sensing; | |
DOI : 10.1186/s13634-021-00783-x | |
来源: Springer | |
【 摘 要 】
Aiming at the problem that traditional direction of arrival (DOA) estimation methods cannot handle multiple sources with high accuracy while increasing the degrees of freedom (DOF), a new method for 2-D DOA estimation based on coprime array MIMO radar (SA-MIMO-CA) is proposed. First of all, in order to ensure the accuracy of multi-source estimation when the number of elements is finite, a new coprime array model based on MIMO (MIMO-CA) is proposed. This method is based on a new MIMO array-based co-prime array model (MIMO-CA), which improves the accuracy of multi-source estimation when the number of array elements is limited, and obtains a larger array aperture with a smaller number of array elements, and improves the estimation accuracy of 2-D DOA. Finally, the effectiveness and reliability of the proposed SM-MIMO-CA method in improving the DOF of array and DOA accuracy are verified by experiments.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO202109174066977ZK.pdf | 2401KB | download |