% Set your folder path here folderPath = 'C:\Users\sioe\Documents\High_Speed_Measurement_2024\mpi_measurement\'; fileTimeStmp = 'testen20241028_163511'; fileBody = [fileTimeStmp,'_PAM_4_R_336000000000_DB_1_I_atten_']; fileBits = [folderPath,fileBody,'0_bits']; fileSymbols = [folderPath,fileBody,'0_symbols']; fileWareHouse = [folderPath,fileTimeStmp,'_wh']; Bits = load(fileBits,"Bits");Bits = Bits.Bits; Symbols = load(fileSymbols);Symbols = Symbols.Symbols; wh = load(fileWareHouse);wh = wh.obj; M = wh.parameter.M.values(1); cnt = 1; for i_atten = 24%flip([0:3:30,45]) fileRx = [folderPath,fileBody,num2str(i_atten),'_rx_signal']; S = load(fileRx);S = S.S; Scpe_sig_raw = load([folderPath,fileBody,num2str(i_atten),'_raw_signal']); Scpe_sig_raw = Scpe_sig_raw.Scpe_sig_raw; Scpe_sig_raw.spectrum("displayname",'Raw signal','fignum',80,'normalizeTo0dB',1); eq_values = min(numel(S),8); Noi = cell(eq_values,1); EQ_vnle= cell(eq_values,1); EQ_ffe= cell(eq_values,1); %ffe = EQ("Ne",[50,0,0],"Nb",[0,0,0],"training_length",4096*2,"training_loops",5,"dd_loops",5,"K",2,"DCmu",0.05,"DDmu",[0.0004 0.0004 0.0004 0.0004 ],"DFEmu",0.005,"FFEmu",0,"plotfinal",0,"ideal_dfe",1); vnle = EQ("Ne",[50,0,0],"Nb",[0,0,0],"training_length",4096*2,"training_loops",5,"dd_loops",5,"K",2,"DCmu",0.0,"DDmu",[0.0004 0.0004 0.0004 0.0004 ],"DFEmu",0.005,"FFEmu",0,"plotfinal",0,"ideal_dfe",1); parfor s = 1:eq_values if 1 %VNLE Scpe_sig_syncd = S{s}; [EQ_vnle{s}] = vnle.process(Scpe_sig_syncd,Symbols); Noi{s} = EQ_vnle{s}-Symbols; Rx_bits = PAMmapper(M,0).demap(EQ_vnle{s}); [~,~,ber_vnle(s),~] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1); end %VNLE + MLSE if 1 Noi{s}.signal = Noi{s}.signal - mean(Noi{s}.signal); nc = 2; burg_coeff = arburg(Noi{s}.signal,nc); EQ_mlse = EQ_vnle{s}.filter(burg_coeff,1); EQ_mlse = MLSE("DIR",burg_coeff,"duobinary_output",0,"M",M,"trellis_states",PAMmapper(M,0).levels).process(EQ_mlse); Rx_bits = PAMmapper(M,0).demap(EQ_mlse); [~,~,ber_vnle_mlse(s),~] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1); end end if 1 [~,s]=min(ber_vnle_mlse); nc = 2; burg_coeff = arburg(Noi{s}.signal,nc); Noi{s}.spectrum('displayname','Noise PSD','fignum',123); [h,w] = freqz(1,burg_coeff,length(Noi{s}),"whole",Noi{s}.fs); h = h/max(abs(h)); hold on w_ = (w - Noi{s}.fs/2); plot(w_.*1e-9,20*log10(fftshift(h)),'DisplayName',['', num2str(nc), ' coefficients for burg alg.']); end disp(['VNLE EQ: BEST BER: ',sprintf('%.1E',min(ber_vnle)),' AVG BER: ',sprintf('%.1E',mean(ber_vnle)),' WORST:',sprintf('%.1E',max(ber_vnle)),'. Out of ',num2str(numel(ber_vnle))]); disp(['VNLE+MLSE EQ: BEST BER: ',sprintf('%.1E',min(ber_vnle_mlse)),' AVG BER: ',sprintf('%.1E',mean(ber_vnle_mlse)),' WORST:',sprintf('%.1E',max(ber_vnle_mlse)),'. Out of ',num2str(numel(ber_vnle_mlse))]); vnle_result(cnt) = min(ber_vnle); mlse_result(cnt) = min(ber_vnle_mlse); cnt=cnt+1; end i_atten = flip([0:3:30,45]); figure(90) plot(i_atten,mlse_result); % Continue with the rest of your plot settings title('MPI') yline(3.8e-3, 'DisplayName', 'HD-FEC', 'LineStyle', '--', 'HandleVisibility', 'off'); xlabel('Bit Rate in GBps'); ylabel('Attenuation of I Branch'); set(gca, 'yscale', 'log'); set(gca, 'Box', 'on'); grid on; grid minor; legend('Interpreter', 'none');