Journal
SENSORS
Volume 21, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/s21041429
Keywords
underwater acoustic target; ship radiated noise; deep learning; depthwise separable convolution; dilated convolution
Funding
- Basic Scientific Research project [JCKY2017207B042]
- National Natural Science Foundation of China [61573114]
Ask authors/readers for more resources
A new deep neural network model for underwater target recognition is proposed in this paper, which can automatically extract features from the raw data of ship-radiated noise. Evaluation using measured data shows that the features extracted from the model have good characteristics of intra-class aggregation and inter-class separation. Verification with cross-folding model enhances the generalization ability of the model.
Facing the complex marine environment, it is extremely challenging to conduct underwater acoustic target feature extraction and recognition using ship-radiated noise. In this paper, firstly, taking the one-dimensional time-domain raw signal of the ship as the input of the model, a new deep neural network model for underwater target recognition is proposed. Depthwise separable convolution and time-dilated convolution are used for passive underwater acoustic target recognition for the first time. The proposed model realizes automatic feature extraction from the raw data of ship radiated noise and temporal attention in the process of underwater target recognition. Secondly, the measured data are used to evaluate the model, and cluster analysis and visualization analysis are performed based on the features extracted from the model. The results show that the features extracted from the model have good characteristics of intra-class aggregation and inter-class separation. Furthermore, the cross-folding model is used to verify that there is no overfitting in the model, which improves the generalization ability of the model. Finally, the model is compared with traditional underwater acoustic target recognition, and its accuracy is significantly improved by 6.8%.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available