Sparse Uniform Array Grating Lobe Suppression Using Dual-carrier Frequency Pattern Multiplication

WANG Xu; HUANG Dongping; WEI Guohua; BAI Jiahao; ZHU Qinyuan

doi:10.11999/JEIT211492

Volume 45 Issue 2

Feb. 2023

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Article Navigation > Journal of Electronics & Information Technology > 2023 > 45(2): 534-541

WANG Xu, HUANG Dongping, WEI Guohua, BAI Jiahao, ZHU Qinyuan. Sparse Uniform Array Grating Lobe Suppression Using Dual-carrier Frequency Pattern Multiplication[J]. Journal of Electronics & Information Technology, 2023, 45(2): 534-541. doi: 10.11999/JEIT211492

Citation:

WANG Xu, HUANG Dongping, WEI Guohua, BAI Jiahao, ZHU Qinyuan. Sparse Uniform Array Grating Lobe Suppression Using Dual-carrier Frequency Pattern Multiplication[J]. Journal of Electronics & Information Technology, 2023, 45(2): 534-541. doi: 10.11999/JEIT211492

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Sparse Uniform Array Grating Lobe Suppression Using Dual-carrier Frequency Pattern Multiplication

doi: 10.11999/JEIT211492

School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China

Funds: The National Natural Science Foundation of China (61671059)

Received Date: 2021-12-13
Rev Recd Date: 2022-05-19

Available Online: 2022-05-24

Publish Date: 2023-02-07

Abstract

Abstract

A novel grating lobe suppression method based on the difference in the relative position between the main lobe and grating lobes of different carrier frequency array patterns, is proposed to solve the problem of grating lobes in the array pattern due to the sparse array antenna spacing being larger than the signal wavelength. The algorithm makes use of the echo information of different carrier frequencies avoid large-scale search and reduce effectively the amount of computation. Firstly, the factors affecting the performance of the algorithm are determined theoretically. The key ones are then quantitatively analyzed and the relationship expression between the Peak SideLobe Ratio (PSLR) and frequency difference is deduced. It provides a theoretical basis for selecting quickly the optimal frequency difference for grating lobe suppression. Finally, the effectiveness of the algorithm for grating lobe suppression and the correctness of the expression of the relationship between the PSLR and frequency difference are verified by computer simulation.
- Sparse array,
- Grating lobe suppression,
- Pattern multiplication

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References(16)

References

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