?? sliceanddecode.m
字號:
function [num10decode]=sliceanddecode(num10signal),
% Sliceanddecode: Slice the 10 DIGIT signal to subsignal and decode them.
% [num10decode]=sliceanddecode(num10signal)
% If k~={1,2,3,4,5,6,7,8,9,0,'*','#'} then ,
%
%
% Input :
% num10signal : to shma gia 10 Digit to ena meta to allo.
%
%
% Output:
% num10decode : Ena dianusma (string) to opoio periexei toys
% xarakthres gia ka8e digit.
% end
% Copyright 2005 (R)
% Author : Zouzias Anastasios
% Email : zouzias@ceid.upatras.gr
% $Date: 2005/08/31 18:03:00 $
num10decode=[];
if ~exist('filt1') || ~exist('filt2') || ~exist('filt3') || ~exist('filt4') || ~exist('filt5') || ~exist('filt6') || ~exist('filt7') ,
load filter_bank.mat
end
for i=1:1:10,
signal=num10signal( ((i-1)*408+1):1:(i*408));
N=size(signal);
rmain=2048*2;
rmarg=1024*2;
n=1:rmain;
pad=['1' '2' '3' ; '4' '5' '6' ; '7' '8' '9'; '*' '0' '#'];
%============================================
%============================================
% Loads the bank from disk...
%============================================
%============================================
% Pass the signal from The FILTER BANK.
%============================================
%============================================
yfilt1=conv(filt1.tf.num,signal);
yfilt2=conv(filt2.tf.num,signal);
yfilt3=conv(filt3.tf.num,signal);
yfilt4=conv(filt4.tf.num,signal);
yfilt5=conv(filt5.tf.num,signal);
yfilt6=conv(filt6.tf.num,signal);
yfilt7=conv(filt7.tf.num,signal);
%================================================================
%================================================================
% Find the energy from every output and find the max
%================================================================
%================================================================
energy=[norm(yfilt1) norm(yfilt2) norm(yfilt3) norm(yfilt4) norm(yfilt5) norm(yfilt6) norm(yfilt7)]';
position=[find(energy==max(energy(1:4))) find(energy==max(energy(5:7)))-4]';
digit=pad(position(1,1),position(2,1));
num10decode(i,1)=digit;
end
num10decode=char(num10decode);
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