updyadhi_pbs.sci

小波分解源代码

function y = UpDyadHi_PBS(x,qmf)
// UpDyadHi_PBS -- Hi-Pass Upsampling operator; periodized
//  Usage
//    u = UpDyadHi_PBS(d,f)
//  Inputs
//    d    1-d signal at coarser scale
//    sf   symmetric filter
//  Outputs
//    u    1-d signal at finer scale
//
//  See Also
//    DownDyadLo_PBS, DownDyadHi_PBS, UpDyadLo_PBS, IWT_PBS, symm_aconv
//
//  Copyright Aldo I Maalouf

	y = symm_aconv( MirrorSymmFilt(qmf), rshift( UpSample(x) ) );
	endfunction