文献类型：期刊文献

英文题名：Two sufficient conditions in frequency domain for Gabor frames

作者：Li, Dengfeng[2];Wu, Guochang[1];Zhang, Xiaojing

第一作者：Li, Dengfeng

通讯作者：Wu, GC[1]

机构：[1]Henan Univ Finance & Econ, Dept Math & Informat Sci, Zhengzhou 450002, Peoples R China;[2]Henan Univ, Coll Math & Informat Sci, Inst Appl Math, Kaifeng 475001, Peoples R China

第一机构：河南财经政法大学数学与信息科学学院

通讯机构：[1]corresponding author), Henan Univ Finance & Econ, Dept Math & Informat Sci, Zhengzhou 450002, Peoples R China.|[1048425]河南财经政法大学数学与信息科学学院;[10484]河南财经政法大学;

年份：2011

卷号：24

期号：4

起止页码：506-511

外文期刊名：APPLIED MATHEMATICS LETTERS

收录：;EI(收录号：20105213523414);Scopus(收录号：2-s2.0-78650515272);WOS:【SCI-EXPANDED(收录号:WOS:000286539200019)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 61071189 and No. 60774041), the Innovation Scientists and Technicians Troop Construction Projects of Henan Province (No. 084100510012) and the Natural Science Foundation for the Education Department of Henan Province of China (No. 2010A110002).

语种：英文

外文关键词：Frame; Gabor frame; Sufficient condition

摘要：Two sufficient conditions for the Gabor system to be a frame for L-2(R) are presented in this note. The conditions proposed are stated in terms of the Fourier transforms of the Gabor system's generating functions. It is also shown that these conditions are better than the known result. (C) 2010 Elsevier Ltd. All rights reserved.