Adversarial multi-task underwater acoustic target recognition: towards robustness against various influential factors

• URL: http://arxiv.org/abs/2411.02848v1
• Date: Tue, 05 Nov 2024 06:42:51 GMT
• Title: Adversarial multi-task underwater acoustic target recognition: towards robustness against various influential factors
• Authors: Yuan Xie, Ji Xu, Jiawei Ren, Junfeng Li,
• Abstract summary: Underwater acoustic target recognition based on passive sonar faces numerous challenges in practical maritime applications. One of the main challenges lies in the susceptibility of signal characteristics to diverse environmental conditions. Influential factors are often neglected in the field of underwater acoustic target recognition.
• Score: 25.187507472845944
• License:
• Abstract: Underwater acoustic target recognition based on passive sonar faces numerous challenges in practical maritime applications. One of the main challenges lies in the susceptibility of signal characteristics to diverse environmental conditions and data acquisition configurations, which can lead to instability in recognition systems. While significant efforts have been dedicated to addressing these influential factors in other domains of underwater acoustics, they are often neglected in the field of underwater acoustic target recognition. To overcome this limitation, this study designs auxiliary tasks that model influential factors (e.g., source range, water column depth, or wind speed) based on available annotations and adopts a multi-task framework to connect these factors to the recognition task. Furthermore, we integrate an adversarial learning mechanism into the multi-task framework to prompt the model to extract representations that are robust against influential factors. Through extensive experiments and analyses on the ShipsEar dataset, our proposed adversarial multi-task model demonstrates its capacity to effectively model the influential factors and achieve state-of-the-art performance on the 12-class recognition task.

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