%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%                                                       %%  upsample.m                                           %%                                                       %%       P. Abry                                         %%                                                       %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%function [a,b]=upsample(c,d);ls=max(size(c));a=zeros(1,2*ls-1);a(1:2:2*ls-1)=c;b=2*d;