[1]State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China;
[1]State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China;
[2]Laser Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China;
[3]School of Electrical and Electronic Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
[1]State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China;
[1]State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China;