推广了双正交小波的概念,引进了子空间伪框架的概念,类似于Mallat的金字塔算法,给出了广义多分辨结构的塔式分解格式及其存在的条件,得到了平方可积函数空闻的伪射框架展式。
The notion of biorthogonal wavelets is generalized. The concept of subspace pseudoframes of L2 (R) is introduced. The pyramid decomposition scheme of a generalized multiresolution structure is proposed,which is similar to Mallafs pyramid algorithm. A necessary and sufficient condition for the existence of the pyramid decomposition scheme is presented. Moreover, affine frames of L^2(R)are constructed by virtue of the pyramid decomposition scheme.