引进了函数空间L^2(R)中的a(2≤a∈Z)尺度广义多分辨结构与平移伪框架的概念,给出了它的塔式分解格式及其存在的条件,进而得到平方可积函数空间的函数仿射框架展式.推广了双正交小波的概念.
The notion of a generalized multiresolution structure biorthogonal wavelets is introduced, and the concept of affine pseudoframes of L^2(R) is given. The pyramid decomposition scheme of a generalized multiresolution structure is presented, which is similar to Mallat's pyramid algorithm. Aneeessary and sufficient condition for the existence of the pyramid decomposition scheme is presented. Moreover, affine frame pseudoframe expansions of L^2 (R) are constructed by virtue of the pyramid decomposition scheme.