An underwater acoustic imaging method for pattern recognition
文献类型：期刊论文
| 作者 | 何先忠;许枫 |
| 刊名 | CHINESE JOURNAL OF ACOUSTICS
 |
| 出版日期 | 2020 |
| 期号 | 4页码:1 |
| 英文摘要 | An underwater acoustic imaging method for pattern recognition in a free-field environment was proposed,where angular domain filtering is used to separate plane waves from different directions of space in the array element domain.In particular,a series of angular domain bandpass filters are designed,where the output from these filters is the snapshot of data from an incident plane wave within the angular passband in the array element domain.Our approach is potentially applicable to pattern recognition algorithms,such as target recognition and bottom classification,which need the characteristic data of the array element domain.Moreover,underwater acoustic imaging may be performed by using the amplitude of snapshots from the angular domain filters as the pixel values.The angular domain filtering method may be used for underwater acoustic imaging to obtain the desired sound image,and each pixel corresponds to a snapshot of data generated by far-field plane wave coming from the target and hitting the receiving array.Simulation and experimental results show that the sound images obtained by filtering in the angular domain are close to those obtained by the conventional beamforming method.We also find that the two imaging methods are robust to the transducer array element errors. |
| 源URL | [http://159.226.59.140/handle/311008/9551]  |
| 专题 | 历年期刊论文_2020年期刊论文 |
| 作者单位 | 中国科学院声学研究所 |
| 推荐引用方式 GB/T 7714 | 何先忠；许枫. An underwater acoustic imaging method for pattern recognition[J]. CHINESE JOURNAL OF ACOUSTICS,2020(4):1. |
| APA | 何先忠；许枫.(2020).An underwater acoustic imaging method for pattern recognition.CHINESE JOURNAL OF ACOUSTICS(4),1. |
| MLA | 何先忠；许枫."An underwater acoustic imaging method for pattern recognition".CHINESE JOURNAL OF ACOUSTICS .4(2020):1. |
入库方式： OAI收割
来源：声学研究所
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