Adaptive ship-radiated noise recognition with learnable fine-grained wavelet transform

• URL: http://arxiv.org/abs/2306.01002v2
• Date: Mon, 19 Feb 2024 09:28:15 GMT
• Title: Adaptive ship-radiated noise recognition with learnable fine-grained wavelet transform
• Authors: Yuan Xie, Jiawei Ren, Ji Xu
• Abstract summary: This work proposes an adaptive generalized recognition system - AGNet. By converting fixed wavelet parameters into fine-grained learnable parameters, AGNet learns the characteristics of underwater sound at different frequencies. Experiments reveal that our AGNet outperforms all baseline methods on several underwater acoustic datasets.
• Score: 25.887932248706218
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Analyzing the ocean acoustic environment is a tricky task. Background noise and variable channel transmission environment make it complicated to implement accurate ship-radiated noise recognition. Existing recognition systems are weak in addressing the variable underwater environment, thus leading to disappointing performance in practical application. In order to keep the recognition system robust in various underwater environments, this work proposes an adaptive generalized recognition system - AGNet (Adaptive Generalized Network). By converting fixed wavelet parameters into fine-grained learnable parameters, AGNet learns the characteristics of underwater sound at different frequencies. Its flexible and fine-grained design is conducive to capturing more background acoustic information (e.g., background noise, underwater transmission channel). To utilize the implicit information in wavelet spectrograms, AGNet adopts the convolutional neural network with parallel convolution attention modules as the classifier. Experiments reveal that our AGNet outperforms all baseline methods on several underwater acoustic datasets, and AGNet could benefit more from transfer learning. Moreover, AGNet shows robust performance against various interference factors.

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