EQ Structures for MPI mitigation

projects/MPI_August/EQ_development.m

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+
+
+Scope_sig = load("projects/MPI_August/scpe_sig.mat","Scpe_sig");
+Scope_sig = Scope_sig.Scpe_sig;
+Symbols = load("projects/MPI_August/symbols.mat","Symbols");
+Symbols = Symbols.Symbols;
+Bits = load("projects/MPI_August/bits.mat","Bits");
+Bits = Bits.Bits;
+
+mdc = [1e-3,1e-2,2e-2,3e-2,4e-2,5e-2,1e-1];
+for m = 1:numel(mdc)
+
+    Eq     = FFE_DCremoval("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"mu_dd",1e-4,"mu_tr",0,"order",25,"sps",2,"decide",0,"mu_dc",mdc(m));
+    [EQ_sig] = Eq.process(Scope_sig,Symbols);
+    
+    %%%%% DEMAP %%%%%%
+    Rx_bits = PAMmapper(4,0).demap(EQ_sig);
+    
+    % BER
+    [~,errors_bm,ber(m),errors] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
+end
+
+figure()
+scatter(mdc,ber,20);
+yline(3.8e-3,'DisplayName','HD-FEC');
+xlabel('Mu DC');
+ylabel('Bit Error Rate (BER)');
+title('Bit Error Rate vs. Mu DC');
+set(gca,'yscale','log');
+set(gca,'xscale','log');
+grid on;
+legend
+
+
+%%%% Look at Pam levels %%%%%
+if 1
+    a = PAMmapper(4,0).separate_pamlevels(EQ_sig);
+    figure(14);hold on;scatter(1:EQ_sig.length,a,1,'.');
+end
+
+
+