Research on infrasonic directional simulation technology based on phased parametric array

Qing Li; Huihui Zheng; Weidong Qiao; Jie Bai; Ying Hu; Chan Tian

doi:10.1117/12.2642240

19 December 2022 Research on infrasonic directional simulation technology based on phased parametric array

Qing Li, Huihui Zheng, Weidong Qiao, Jie Bai, Ying Hu, Chan Tian

Proceedings Volume 12319, Optical Metrology and Inspection for Industrial Applications IX; 1231912 (2022) https://doi.org/10.1117/12.2642240
Event: SPIE/COS Photonics Asia, 2022, Online Only

Conference Poster

Abstract

This paper proposes a method based on the phased parametric array to solve the problem of the orientation of infrasonic waves in the air. Firstly, the principles and models of the phased parametric array are introduced, and the models are analyzed via simulation, thus proving that this orientation method can generate infrasonic waves with good directivity. At the same time, the Doyle-Chebyshev beam control method is used to suppress the sidelobes and concentrate the generated infrasonic waves in the direction of the main axis. Finally, the important parameter, namely the infrasonic wave array length, is analyzed to find out at which length the infrasound source level reaches the approximate peak. Through comparison, it is found that the actual array length is smaller than the effective array length.

Conference Presentation

Citation Download Citation

Qing Li, Huihui Zheng, Weidong Qiao, Jie Bai, Ying Hu, and Chan Tian "Research on infrasonic directional simulation technology based on phased parametric array", Proc. SPIE 12319, Optical Metrology and Inspection for Industrial Applications IX, 1231912 (19 December 2022); https://doi.org/10.1117/12.2642240

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