Interference Signal Identification Method of Earthquake Early Warning for High-Speed Railway Based on Generative Adversarial Network and Convolutional Neural Network
1.Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin Heilongjiang 150080, China
2.Key Laboratory of Earthquake Disaster Mitigation, Ministry of Emergency Management, Harbin Heilongjiang 150080, China
3.Railway Science and Technology Research and Development Center, China Academy of Railway Sciences Corporation Limited, Beijing 100081, China
4.Ministry of Security Products, HeNan Splendor Science & Technology Co. , Ltd. , Zhengzhou Henan 450012, China
In order to improve the reliability of earthquake event recognition in the earthquake early warning system of high-speed railway, a method for identifying interference signals of earthquake early warning for high-speed railway based on generative adversarial network (GAN) and convolutional neural network (CNN) was proposed. Firstly, the data of tamping interference signals was enhanced by GAN to achieve data balance. Secondly, a GAN-CNN tamping interference signal recognition model was designed and constructed, and it was trained and tested. Finally, the effectiveness and accuracy of the model in interference signal recognition were verified by comparative experiments. The results show that compared with the case where data is not enhanced by GAN, the accuracy of the proposed method in identifying tamping interference signals and earthquake event signals is 99.60% and 100% respectively, with significant improvement of performance. In addition, the evaluation indicators of the GAN-CNN model such as intersection-over-union ratio, accuracy, recall rate and comprehensive ability are also improved. This method can provide an important reference for the interference signals identification of earthquake early warning for high-speed railway.
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