Simulation Study on Detection and Localization of a Moving Target Under Reverberation in Deep Water
Deep-water reverberation caused by multiple reflections from the seafloor and sea surface can affect the performance of active sonars. To detect a moving target under reverberation conditions, a reverberation suppression method using multipath Doppler shift in deep water and wideband ambiguity funct...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/12/12/2360 |
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| author | Jincong Dun Shihong Zhou Yubo Qi Changpeng Liu |
| author_facet | Jincong Dun Shihong Zhou Yubo Qi Changpeng Liu |
| author_sort | Jincong Dun |
| collection | DOAJ |
| description | Deep-water reverberation caused by multiple reflections from the seafloor and sea surface can affect the performance of active sonars. To detect a moving target under reverberation conditions, a reverberation suppression method using multipath Doppler shift in deep water and wideband ambiguity function (WAF) is proposed. Firstly, the multipath Doppler factors in the deep-water direct zone are analyzed, and they are introduced into the target scattered sound field to obtain the echo of the moving target. The mesh method is used to simulate the deep-water reverberation waveform in time domain. Then, a simulation model for an active sonar based on the source and short vertical line array is established. Reverberation and target echo in the received signal can be separated in the Doppler shift domain of the WAF. The multipath Doppler shifts in the echo are used to estimate the multipath arrival angles, which can be used for target localization. The simulation model and the reverberation suppression detection method can provide theoretical support and a technical reference for the active detection of moving targets in deep water. |
| format | Article |
| id | doaj-art-d21d8dc07a6341d28571ff5600de8b66 |
| institution | DOAJ |
| issn | 2077-1312 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-d21d8dc07a6341d28571ff5600de8b662025-08-20T02:57:02ZengMDPI AGJournal of Marine Science and Engineering2077-13122024-12-011212236010.3390/jmse12122360Simulation Study on Detection and Localization of a Moving Target Under Reverberation in Deep WaterJincong Dun0Shihong Zhou1Yubo Qi2Changpeng Liu3State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, ChinaDeep-water reverberation caused by multiple reflections from the seafloor and sea surface can affect the performance of active sonars. To detect a moving target under reverberation conditions, a reverberation suppression method using multipath Doppler shift in deep water and wideband ambiguity function (WAF) is proposed. Firstly, the multipath Doppler factors in the deep-water direct zone are analyzed, and they are introduced into the target scattered sound field to obtain the echo of the moving target. The mesh method is used to simulate the deep-water reverberation waveform in time domain. Then, a simulation model for an active sonar based on the source and short vertical line array is established. Reverberation and target echo in the received signal can be separated in the Doppler shift domain of the WAF. The multipath Doppler shifts in the echo are used to estimate the multipath arrival angles, which can be used for target localization. The simulation model and the reverberation suppression detection method can provide theoretical support and a technical reference for the active detection of moving targets in deep water.https://www.mdpi.com/2077-1312/12/12/2360deep-water reverberationmultipath doppler shiftwideband ambiguity functiondetection of moving target |
| spellingShingle | Jincong Dun Shihong Zhou Yubo Qi Changpeng Liu Simulation Study on Detection and Localization of a Moving Target Under Reverberation in Deep Water Journal of Marine Science and Engineering deep-water reverberation multipath doppler shift wideband ambiguity function detection of moving target |
| title | Simulation Study on Detection and Localization of a Moving Target Under Reverberation in Deep Water |
| title_full | Simulation Study on Detection and Localization of a Moving Target Under Reverberation in Deep Water |
| title_fullStr | Simulation Study on Detection and Localization of a Moving Target Under Reverberation in Deep Water |
| title_full_unstemmed | Simulation Study on Detection and Localization of a Moving Target Under Reverberation in Deep Water |
| title_short | Simulation Study on Detection and Localization of a Moving Target Under Reverberation in Deep Water |
| title_sort | simulation study on detection and localization of a moving target under reverberation in deep water |
| topic | deep-water reverberation multipath doppler shift wideband ambiguity function detection of moving target |
| url | https://www.mdpi.com/2077-1312/12/12/2360 |
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