一种非均匀采样的新方法  

A new method to non-uniformly sampling

作　　者：刘山[1] 任颖颖[2] 龙仑[1] 

机构地区：[1]天津工程师范学院理学院,天津300222 [2]北京交通大学理学院,北京100044

出　　处：《天津工程师范学院学报》2009年第2期37-39,51,共4页Journal of Tianji University of Technology and Education

基　　金：天津市自然科学基金资助项目(07JCYBC13600)

摘　　要：针对被采样信号的高低频率分布,利用三角插值的超收敛性,给出一种精确选择一列采样点的方法,该方法能用较少的采样点得到重构质量较高的采样。A new method of non-uniformly sampling is given for some periodic signals. The sampling is connected with the trigonometric interpolation. The sampling points are accurately chosen with respect to the distribution of frequency of signal, by which the signal can be reconstructed with sampling points as few as possible.

关 键 词：非均匀采样 三角插值 MOBIUS变换 

分 类 号：O175[理学—数学]