ui_ser.m

基于Matlab

% This plots SER vs. SNR waterfall curves 
function [] = ui_ser();
 
% declare global variables
dfec_global; 
ui_private_global;


if get(h_ser,'Value') 
   newparams;
   figure(fig_ser);
   sigsq=10.^(-SNR/10);
   Gamma_iir_lin=1./lin_iirmse(c,spacing,SNR);
   Gamma_iir_dfe=1./dfe_iirmse(c,spacing,SNR);
   if (cnstl_type==1)
      SERIIRLIN=serpam(Ms,Gamma_iir_lin);
      SERIIRDFE=serpam(Ms,Gamma_iir_dfe);
   elseif (cnstl_type==2)
      SERIIRLIN=serqam(Ms,Gamma_iir_lin);
      SERIIRDFE=serqam(Ms,Gamma_iir_dfe);
   elseif (cnstl_type==3)
      SERIIRLIN=serpam(Ms,Gamma_iir_lin);
      SERIIRDFE=serpam(Ms,Gamma_iir_dfe);
   end;
   semilogy(SNR,SER,'o',SNR,SERIIRLIN,'*',SNR,SERIIRDFE,'p'); hold on;
   if (spacing==1)
      legend('FIR MMSE-DFE', 'IIR MMSE-BSE','IIR MMSE-DFE');
   else
      legend('FIR MMSE-DFE', 'IIR MMSE-FSE','IIR MMSE-DFE');
   end;
   semilogy(SNR,SER,'-',SNR,SERIIRLIN,'-', SNR,SERIIRDFE); hold off;
   title(['FIR MMSE-DFE design: Nf=' num2str(Nf) ', Nd=' num2str(Nd) ...
           ', \delta=' num2str(delta) ', SNR=' num2str(max(SNR))]);
   xlabel('SNR')
   ylabel('SER')
   axis('square');
   grid
else
     if ishandle(fig_ser), delete(fig_ser); end;
end;