Mr. Fan Liu Profile

Fan Liu

at Tianjin Univ

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Proceedings Article | 6 May 2019 Paper

Expansion of restricted sample for underwater acoustic signal based on generative adversarial networks

Fan Liu, Qingzeng Song, Guanghao Jin

Proceedings Volume 11069, 1106948 (2019) https://doi.org/10.1117/12.2524173

KEYWORDS: Statistical modeling, Acoustics, Data modeling, Deconvolution, Signal generators, Network architectures, Signal processing, Statistical analysis, Image processing

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Recently, deep learning has developed rapidly, which has made significant progress in tasks such as target detection and classification. Compared with traditional methods, using deep learning techniques contribute to achieve higher detection accuracy, recognition rate, and other better performance with big data set. In the fields of radar and sonar especially like underwater acoustic signals, training samples are scarce due to the difficulty of the collection or security reason, which leads to poor performance of the classification models, as those need big training samples. In this paper, we present a novel framework based on Generative Adversarial Networks (GAN) to resolve the problem of insufficient samples for the underwater acoustic signals. Our method preprocesses the audio samples to the gray-scale spectrum images, so that, those can fit the GAN to captures the features and reduce the complexity at the same time. Then our method utilizes an independent classification network outside the GAN to evaluate the generated samples by GAN. The experimental results show that the samples generated by our approach outperform existing methods with higher quality, which can significantly improve the prediction accuracy of the classification model.

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