Acoustic backscattering measurement from sandy seafloor at 6–24 kHz in the South Yellow Sea

KAN Guangming LIU Baohua YANG Zhiguo YU Shengqi QI Lehua YU Kaiben PEI Yanliang

阚光明, 刘保华, 杨志国, 于盛齐, 戚乐华, 于凯本, 裴彦良. 南黄海砂质海底反向声散射测量(6-24 kHz)[J]. 海洋学报英文版, 2019, 38(5): 99-108. doi: 10.1007/s13131-019-1388-4
引用本文: 阚光明, 刘保华, 杨志国, 于盛齐, 戚乐华, 于凯本, 裴彦良. 南黄海砂质海底反向声散射测量(6-24 kHz)[J]. 海洋学报英文版, 2019, 38(5): 99-108. doi: 10.1007/s13131-019-1388-4
KAN Guangming, LIU Baohua, YANG Zhiguo, YU Shengqi, QI Lehua, YU Kaiben, PEI Yanliang. Acoustic backscattering measurement from sandy seafloor at 6–24 kHz in the South Yellow Sea[J]. Acta Oceanologica Sinica, 2019, 38(5): 99-108. doi: 10.1007/s13131-019-1388-4
Citation: KAN Guangming, LIU Baohua, YANG Zhiguo, YU Shengqi, QI Lehua, YU Kaiben, PEI Yanliang. Acoustic backscattering measurement from sandy seafloor at 6–24 kHz in the South Yellow Sea[J]. Acta Oceanologica Sinica, 2019, 38(5): 99-108. doi: 10.1007/s13131-019-1388-4

南黄海砂质海底反向声散射测量(6-24 kHz)

doi: 10.1007/s13131-019-1388-4
基金项目: The Opening Fund of Pilot National Laboratory for Marine Science and Technology (Qingdao) under contract No. QNLM2016ORP0209; the National Natural Science Foundation of China under contract Nos 41330965, 41676055 and 41527809; the Taishan Scholar Project Funding under contract No. tspd20161007.

Acoustic backscattering measurement from sandy seafloor at 6–24 kHz in the South Yellow Sea

  • 摘要: 在南黄海某一典型的砂质海底区域,采用全向性声源和全向性接收水听器开展了频率范围为6-24 kHz的海底反向声散射测量。测量结果表明,在避免海面散射干扰并满足远场条件的情况下,本次实验获得了掠射角范围为18~80°的海底反向声散射强度,其数值为-41.1~24.4 dB。在有效掠射角范围内,声散射强度总体上随掠射角的增大呈现出增大趋势,但对于不同的频率,其变化趋势有所不同,反映出不同的散射机理。在20°、40°和60°掠射角处,在6-24 kHz的频率范围内反向声散射强度总体上呈现出正相关的频率依赖性,其线性相关斜率分别为0.2229 dB/kHz、0.5130 dB/kHz、0.1746 dB/kHz。在最大掠射角80°处,反向声散射强度未呈现出明显的频率相关性。
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  • 收稿日期:  2018-08-06

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