Institution: | School of Marine Engineering, Northwestern Polyteehnical University, Xi' an 710072, Shaanxi, China School of Electronic and Information Engineering, Xi' an Technological University, Xi' an 710032, Shaanxi, China;School of Marine Engineering, Northwestern Polyteehnical University, Xi' an 710072, Shaanxi, China;School of Electronic and Information Engineering, Xi' an Technological University, Xi' an 710032, Shaanxi, China |