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;


mubuff = [0.5];

for m = 1:numel(mubuff)

    Eq     = FFE_FFDCAVG("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"mu_dd",1e-4,"mu_tr",0,"order",25,"sps",2,"decide",0,"mu_buff",mubuff(m));
    
    [EQ_sig] = Eq.process(Scope_sig,Symbols);
    
    %%%%% DEMAP %%%%%%
    Rx_bits = PAMmapper(4,0).demap(EQ_sig);
    
    % BER
    [~,errors_bm,ber,errors] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
    
    disp(['BER: ',sprintf('%.1E',ber)]);

end

% fs = 2*112e9;
% N = 2^(nextpow2(length(Eq.error(1,:)))-6);
% [p_lin,w] = pwelch(Eq.error(1,:),hanning(N),N/2,N,fs,"centered","power","mean");
% p_dbm = 10*log10(p_lin)+30; %dB to dBm in case of "power"

% figure(123);  % If figure does not exist, create new figure
% hold on
% plot(w.*1e-9,p_dbm,'DisplayName',['bla'],'LineWidth',1);
% xlabel("Frequency in GHz");
% %ylabel("Power/frequency (dB/Hz)");
% ylabel("Power (dBm)");
% xlim([-fs/2 fs/2].*1e-9)
% edgetick = 2^(nextpow2(fs*1e-9));
% xticks([-edgetick:16:edgetick]);
% xlim([-244, 244])
% ylim([-120,-0]);
% yticks([-200:10:10]);
% legend


%%%% Look at Pam levels %%%%%
if 1
    a = PAMmapper(4,0).separate_pamlevels(EQ_sig);
    figure(15);hold on;scatter(1:EQ_sig.length,a,1,'.');
end