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DB and 400G and minor changes

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This commit is contained in:
Silas Oettinghaus
2024-10-07 08:22:28 +02:00
parent 179a7f9682
commit da3be973e2
20 changed files with 578 additions and 142 deletions
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49
test/mlse_minimal_example.m
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@@ -1,6 +1,6 @@
useprbs = 1;
M = 8;
randkey = 1;
useprbs = 0;
M = 4;
randkey = 2;
fsym = 112e9;
%%%%% PRBS Generation in correct shape for Modulation Format %%%%%%
@@ -31,29 +31,50 @@ Digi_Mod = PAMmapper(M,0);
Symbols_tx = Digi_Mod.map(Tx_bits);
Symbols_tx.fs = fsym;
Symbols = Duobinary().precode(Symbols_tx);
if 0
Symbols = Duobinary().encode(Symbols);
Symbols = Duobinary().precode(Symbols_tx);
Symbols = MLSE("DIR",[1,1],"duobinary_output",1,"trellis_states",Digi_Mod.levels,"M",M).process(Symbols);
Symbols = Duobinary().encode(Symbols);
Symbols = Duobinary().decode(Symbols);
Symbols = MLSE("DIR",[1 1],"duobinary_output",1,"trellis_states",Digi_Mod.levels,"M",M).process(Symbols);
Rx_bits = PAMmapper(M,0).demap(Symbols);
Symbols = Duobinary().decode(Symbols);
[~,error_num,ber,error_pos] = calc_ber(Tx_bits.signal,Rx_bits.signal,"skip_front",0,"skip_end",0,"returnErrorLocation",1);
else
cnt = 1;
disp(['BER: ',sprintf('%.1E',ber),' - - PAM-',num2str(M)]);
%
figure;hold on
Symbols = Symbols_tx;
coeff = [1,0.5,0.2,0.1];
Symbols.signal = filter(coeff, 1, Symbols.signal);
Symbols.spectrum("fignum",129,"displayname",['coeff:',num2str(coeff)]);
Symbols = MLSE("DIR",coeff,"duobinary_output",0,"trellis_states",Digi_Mod.levels,"M",M).process(Symbols);
Rx_bits = PAMmapper(M,0).demap(Symbols);
[~,error_num,ber,error_pos] = calc_ber(Tx_bits.signal,Rx_bits.signal,"skip_front",0,"skip_end",0,"returnErrorLocation",1);
disp(['BER: ',sprintf('%.1E',ber),' - - PAM-',num2str(M)]);
end
%
figure(494)
clf
subplot(2,1,1)
title('Bits Compare')
hold on
stairs(Rx_bits.signal(1:100,1),'LineWidth',2,'DisplayName','Rx Bits')
stairs(Tx_bits.signal(1:100,1),'LineStyle',':','LineWidth',2,'DisplayName','Tx Bits');
legend
subplot(2,1,2)
hold on
title('Symbols Compare')
stairs(Symbols.signal(1:100,1),'LineStyle',':','LineWidth',2,'DisplayName','Rx Symbols');
stairs(Symbols_tx.signal(1:100,1),'LineWidth',2,'DisplayName','Tx Symbols')
stairs(Symbols.signal(1:100,1),'LineStyle','-','LineWidth',2,'DisplayName','Rx Symbols');
stairs(Symbols_tx.signal(1:100,1),'LineWidth',2,'DisplayName','Tx Symbols','LineStyle',':')
legend