% tje function to compute ISI of T/2- or T- spaced combined
% channel-equalizer time span.  Input is a row or column vector
% containing this time span, so must be downsampled if 
% considering baud rate.
% ISI computed as l-1 norm
% function [isix]=ISI(hhh)
function [isix]=isi(hhh)
isix=(sum(abs(hhh))-max(abs(hhh)))/max(abs(hhh));
