A Grating Lobe Suppression Method of Wideband Real Time Delay Pattern Based on Particle Swarm Optimization Algorithm

Wenshan CONG; Lan YU; Jianghai WO

doi:10.11999/JEIT180719

Volume 41 Issue 7

Jul. 2019

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Wenshan CONG, Lan YU, Jianghai WO. A Grating Lobe Suppression Method of Wideband Real Time Delay Pattern Based on Particle Swarm Optimization Algorithm[J]. Journal of Electronics & Information Technology, 2019, 41(7): 1698-1704. doi: 10.11999/JEIT180719

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Wenshan CONG, Lan YU, Jianghai WO. A Grating Lobe Suppression Method of Wideband Real Time Delay Pattern Based on Particle Swarm Optimization Algorithm[J]. Journal of Electronics & Information Technology, 2019, 41(7): 1698-1704. doi: 10.11999/JEIT180719

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A Grating Lobe Suppression Method of Wideband Real Time Delay Pattern Based on Particle Swarm Optimization Algorithm

doi: 10.11999/JEIT180719

No. One Department, Air Force Early Warning Academy,Wuhan 430019, China

Received Date: 2018-07-18
Rev Recd Date: 2019-01-21

Available Online: 2019-02-15

Publish Date: 2019-07-01

Abstract

Abstract

A grating lobe suppression method of wideband real time delay pattern based on Particle Swarm Optimization(PSO) algorithm is proposed to solve the problem of grating lobe arise from inter-element is larger than wavelength. Firstly, the array energy pattern based on wideband real time delay is defined. Then, a fitness function is constructed with maximum sidelobe level of the array energy pattern. Finally, the grating lobe is further suppressed by optimizing the elements position distribution using Particle Swarm Optimization (PSO) algorithm. The simulation results show that the proposed grating lobes suppression method is more effective than individually using the particle swarm optimization method or the wideband real time delay method. Furthermore, the influence of the element space, the element number, the time width and the center frequency of signal on the performance of grating lobe suppression are studied.
- Particle Swarm Optimization(PSO) algorithm,
- Wideband real time delay,
- Energy pattern,
- Grating lobe,
- Fitness function

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References

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