Modeling of Space-Time Reverberation under High-speed Vertical Gradient Motion

Chao Dong, Xiaohong Shen, Yongsheng Yan, Yong Wang

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Reverberation is the main factor affecting active sonar detection. The research of fixed position or low-speed horizontal motion ocean reverberation based on a transceiver sonar platform can not meet modern mission requirements, so reverberation under high-speed vertical gradient motion should be studied. In this paper, the geometric relationship between the transceiver sonar array and the scatterer in motion is analyzed firstly, the time-varying space-varying ocean reverberation model is established, and the equivalent plane wave reverberation level formula is derived. Based on the analysis of space-time coupling characteristics, a space-time reverberation model of an isochronous ellipsoid shell is proposed, which depends on sampling time. The mathematical expressions of the relationship between Doppler frequency shift and spatial cone angle are derived, and the space-time two-dimensional distribution curves under three different array angles are drawn, which verifies the accuracy and effectiveness of the proposed reverberation modeling method.

源语言英语
主期刊名2022 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2022
出版商Institute of Electrical and Electronics Engineers Inc.
ISBN(电子版)9781665469722
DOI
出版状态已出版 - 2022
活动2022 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2022 - Xi'an, 中国
期限: 25 10月 202227 10月 2022

出版系列

姓名2022 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2022

会议

会议2022 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2022
国家/地区中国
Xi'an
时期25/10/2227/10/22

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