The verifi cation of nuclear test ban necessitates the classifi cation and identifi cation of infrasound events.The accurate and eff ective classifi cation of seismic and chemical explosion infrasounds can promote the...The verifi cation of nuclear test ban necessitates the classifi cation and identifi cation of infrasound events.The accurate and eff ective classifi cation of seismic and chemical explosion infrasounds can promote the classifi cation and identifi cation of infrasound events.However,overfi tting of the signals of seismic and chemical explosion infrasounds easily occurs during training due to the limited amount of data.Thus,to solve this problem,this paper proposes a classifi cation method based on the mixed virtual infrasound data augmentation(MVIDA)algorithm and multiscale squeeze-and-excitation ResNet(MS-SE-ResNet).In this study,the eff ectiveness of the proposed method is verifi ed through simulation and comparison experiments.The simulation results reveal that the MS-SE-ResNet network can eff ectively determine the separability of chemical explosion and seismic infrasounds in the frequency domain,and the average classifi cation accuracy on the dataset enhanced by the MVIDA algorithm reaches 81.12%.This value is higher than those of the other four types of comparative classifi cation methods.This work also demonstrates the eff ectiveness and stability of the augmentation algorithm and classifi cation network in the classifi cation of few-shot infrasound events.展开更多
基金supported by the Natural Science Foundation of Shaanxi Province(2023-JC-YB-221).
文摘The verifi cation of nuclear test ban necessitates the classifi cation and identifi cation of infrasound events.The accurate and eff ective classifi cation of seismic and chemical explosion infrasounds can promote the classifi cation and identifi cation of infrasound events.However,overfi tting of the signals of seismic and chemical explosion infrasounds easily occurs during training due to the limited amount of data.Thus,to solve this problem,this paper proposes a classifi cation method based on the mixed virtual infrasound data augmentation(MVIDA)algorithm and multiscale squeeze-and-excitation ResNet(MS-SE-ResNet).In this study,the eff ectiveness of the proposed method is verifi ed through simulation and comparison experiments.The simulation results reveal that the MS-SE-ResNet network can eff ectively determine the separability of chemical explosion and seismic infrasounds in the frequency domain,and the average classifi cation accuracy on the dataset enhanced by the MVIDA algorithm reaches 81.12%.This value is higher than those of the other four types of comparative classifi cation methods.This work also demonstrates the eff ectiveness and stability of the augmentation algorithm and classifi cation network in the classifi cation of few-shot infrasound events.
