Based on lifting scheme and Cohen-Daubechies-Feauveau theorem constructing biorthogonal wavelets, we construct a new symmetric biorthogonal 9-7 tap wavelet (LS97).

• 以构造双正交小波的Cohen-Daubechies-Feauveau定理为基础；利用提升方法构造了一组对称双正交9-7小波滤波器.