[Qiu, Cheng-Wei; Chen, Zhining; Xu, He-Xiu; Xu, HX; Qiu, CW; Ling, Xiaohui; Kim, Yongjune] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117583, Singapore.
[Wang, Guang-Ming; Xu, He-Xiu; Zhang, Xiao-Kuan] Air Force Engn Univ, Air & Missile Def Coll, Xian 710051, Shaanxi, Peoples R China.
[Xu, He-Xiu; Ling, Xiaohui] Hengyang Normal Univ, Coll Phys & Elect Engn, Hengyang 421002, Peoples R China.
[Zhang, Lei] Xi An Jiao Tong Univ, Key Lab Phys Elect & Devices, Minist Educ, Xian 710049, Peoples R China.
[Zhang, Lei] Xi An Jiao Tong Univ, Shaanxi Key Lab Informat Photon Tech, Xian 710049, Peoples R China.