作者机构:[1]School of Electronic Science and Engineering,National University of Defense Technology, Changsha 410073, China
相关基金:Projects(61171133, 61271442) supported by the National Natural Science Foundation of China; Project(61025006) supported by the National Natural Science Foundation for Distinguished Young Scholars of China; Project(B 110404) supported by the Innovation Program for Excellent Postgraduates of National University of Defense Technology, China