The condition of nonuniform sampling for Walter's sampling theorem and a kind of nonuniform sampling for Shannon sampling theorem are given in this paper. For the signal space spanned by compactly supported scaling function
nonuniform sampling theorem
which makes it possible to sample arbitrary compactly supported signal in the space is presented. Moreover
the advantages of nonuniform sampling for compactly supported wavelet space are given. In the end
the numerical examples show that theory presented in this paper is correct.