Research on Ocean Free Surface Multiple Suppression Based on Attention Mechanism in MWCNN
This paper proposes an attention-based Multi-level wavelet Convolutional Neural Network to suppress free surface multiples in marine seismic data.Wavelet transform is used to compress the fea-ture size of image data to avoid the loss of information caused by traditional down-sampling.Besides,it also introduces an attention mechanism to expand its receptive field and improve the fidelity of training.The algorithm proposed in this paper is compared with DnCNN network and U-Net network to test the simulated data and actual data under different observation modes.The experimental results show that the attention Mechanism in MWCNN can better separate the primary wave and the free surface multi-ple,and the protection of the effective signal are better than the other two networks.It has strong gen-eralization ability and suppression efficiency.
万方数据
维普
