Research on Gearbox State Recognition Based on Hierarchical Hidden Markov Model
TENG Gong-Zhi-1, 2, GU Xi-Qing-1, DIAO Jian-Min-1, ZHANG Xing-Hui-1, WANG Zheng-Jun-1, GE Jia-You-2
China Mechanical Engineering . 2011, (18): 2175 -2181 .