Characterization on the wavelet sampling subspace
Sampling theory is one of the most powerful results in information theory and technology.The objective of sampling is to reconstruct a digital signal from its samples.Walter and Zhou extended the Shannon sampling theorem to wavelet subspaces.For a given digital signal f∈L2(R),whether it has sampling series form.In this paper,based on wavelet frames,we offer some new results which give conditions of sampling functions.For some sampling spaces,the based sampling functions are explicitly given.
Wavelet Frame Sampling theorem Wavelet subspace Shift-invariant subspace
Yang Deyun Li Xiuzhen Sang Shengju Hou Yingkun Liu Mingxia
Department of Information and Technology, Taishan University, Taian 271021, China Department of Radiology, Taishan Medical University, Taian 271000, China Department of Information and Technology, Taishan University, Taian 271021, China; School of Mechani Department
国内会议
山东泰安
英文
543-545
2009-08-15(万方平台首次上网日期,不代表论文的发表时间)