TY - Journal of Beijing University of Posts and Telecommunications A1 - NING Fang-li, HAN Peng-cheng, DUAN Shuang, LI Hang, WEI Juan T1 - Identification Method of Valve Leakage Ultrasonic Signal Based on Improved CNN Y1 - 2020-06-24 00:00:00.0 JF - Journal of Beijing University of Posts and Telecommunications JO - Journal of Beijing University of Posts and Telecommunications SP - 38 EP - 44 VL - 43 IS - 3 UR - {https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2019-127} N1 - 10.13190/j.jbupt.2019-127 ER -