Several forms of parametric expressions for orthogonal multifilter banks ar
e presented. The explicit expressions for a group of orthogonal multifilter
banks that generate symmetric/antisymmetric scaling functions and orthonor
mal multiwavelets are obtained. Based on these parametric expressions for o
rthogonal multifilter banks, orthonormal multiwavelet pairs with good time-
frequency localization are constructed, and examples of optimal multifilter
banks are provided.