On compactly supported wavelets when N=7
Yi Ma, Jizheng Di · 2011
Constructions of compactly supported wavelets, whose scaling functions are supported on [0, 7], are studied. Some observations are given for filters relative to these wavelets. For example, if the values of each elements of filters are not in [−0.8, 0.8], relative wavelets will be not good, and generally if the absolute values of one or two elements of filters are larger than 0.5 but smaller than 0.8 while others are relative small, the relative wavelets may be good.