摘要
证明了提升格式保持小波对称性的定理;从一组不能生成L2(R)对偶Riesz基的滤波出发,利用提升格式,得到一组新的双正交滤波集,并证明它们生成L2(R)的双正交紧支小波Riesz基.
A theorem about the lifted biorthogonal filters preserving the symmetry on the basis of the lifting scheme is proved. By means of the lifting scheme , a set of new filters which exactly generate biorthogonal Riesz bases of compactly supported wavelets for L2(R) is obtained from a set of initial filters which dont generate dual Riesz bases.
出处
《中山大学学报(自然科学版)》
CAS
CSCD
北大核心
1998年第4期38-42,共5页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
广东省自然科学基金