Author(s): |
Xiaoping Fang, School of Electronic Information Engineering, Xi’an Technological University, Xi’an, Shaanxi, China 710032 Zhiyong Lei, School of Electronic Information Engineering, Xi’an Technological University, Xi’an, Shaanxi, China 710032 Ming Lei, School of Electronic Information Engineering, Xi’an Technological University, Xi’an, Shaanxi, China 710032 |