update pam 6
This commit is contained in:
Silas Oettinghaus
@@ -9,33 +9,40 @@ datarate = 448e9;
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kover = 4;
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fsym = round(datarate*1e-9 / log2(M))*1e9;
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%fsym = 50e9;
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fdac = 256e9;
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fadc = 256e9;
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lowpass_cutoff = fsym/2 * 1.5;
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lowpass_cutoff = fsym/2 * 1.1;
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awg_bw = lowpass_cutoff;
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mod_bw = lowpass_cutoff;
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phd_bw = lowpass_cutoff;
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scp_bw = lowpass_cutoff;
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mpi_path=50;
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LP_awg = Filter('filtdegree',2,"f_cutoff",awg_bw,"fs",fdac*kover,"filterType","butterworth");
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LP_laser = Filter('filtdegree',4,"f_cutoff",mod_bw,"fs",fdac*kover,"filterType",filtertypes.gaussian);
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LP_awg = Filter('filtdegree',4,"f_cutoff",90e9,"fs",fdac*kover,"filterType",filtertypes.butterworth);
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LP_laser = Filter('filtdegree',2,"f_cutoff",100e9,"fs",fdac*kover,"filterType",filtertypes.gaussian);
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LP_opt = Filter('filtdegree',4,"f_cutoff",fsym/log2(M).*1.5,"fs",fdac*kover,"filterType",filtertypes.gaussian);
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LP_phd = Filter('filtdegree',2,"f_cutoff",phd_bw,"fs",fdac*kover,"filterType",filtertypes.butterworth);
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LP_scpe = Filter('filtdegree',2,"f_cutoff",scp_bw,"fs",fadc,"filterType","butterworth");
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LP_phd = Filter('filtdegree',2,"f_cutoff",70e9,"fs",fdac*kover,"filterType",filtertypes.butterworth);
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LP_scpe = Filter('filtdegree',4,"f_cutoff",110e9,"fs",fadc,"filterType",filtertypes.butterworth);
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figure(2)
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LP_awg.showHere;
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% LP_laser.showHere;
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% LP_opt.showHere;
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% LP_phd.showHere;
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% LP_scpe.showHere;
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% 1) PRBS Generation
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O = 18; %order of prbs
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N = 2^(O-1); %length of prbs
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[~,seed] = prbs(O,1); %initialize first seed of prbs
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bitpattern=[];
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for i = 1:log2(M)
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[bitpattern(:,i),seed] = prbs(O,N,seed);
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end
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if M == 6
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bitpattern = reshape(bitpattern,[],1);
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bitpattern = bitpattern(1:end-mod(length(bitpattern),5));
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end
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% 2 ) Build Inf. signal class
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bits = Informationsignal(bitpattern);
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@@ -56,17 +63,18 @@ X = LP_laser.process(X);
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X = X.normalize("mode","oneone");
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sir = [20:2:36]; %decibel = attenuation of interference path
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laser_linewidth = [1e5 1e6 3e6 10e6];
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laser_linewidth = [1e5 1e6 10e6];
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pn_key = [1:10];
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vp = [0.25,0.5,0.75,1];
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vb = [1:0.1:1.8];
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rop = -9:3;
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rop = [-5:0];
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% sir = 25;
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% laser_linewidth = 1e6;
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% pn_key = 1;
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% vp = 0.8;
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% vb = 1;
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% pn_key = 9;
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% vp = 0.5;
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% vb = [1:0.1:1.8];
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mpi_path=50;
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cnt = 1;
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for s = 1:length(sir)
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@@ -81,7 +89,7 @@ for s = 1:length(sir)
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u_pi = 2;
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vbias = -vb(m);
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extmodlaser = EML("mode",eml_mode.im_cosinus,"power",3,"fsimu",X.fs,"lambda",1290,"bias",vbias,"u_pi",u_pi,"linewidth",laser_linewidth(l),"randomkey",pn_key(pnk));
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E = X.*vp(1);
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E = X.*vp(n);
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% E.signal = min(max(E.signal,-0.2),0.2);
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@@ -119,7 +127,7 @@ for s = 1:length(sir)
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% Fiber
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Combined_sig = Fiber("fsimu",Combined_sig.fs,"fiber_length",2,"alpha",0.3,"D",0,"lambda0",1310,"gamma",0,"Dslope",0.08).process(Combined_sig);
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parfor i = 1:length(rop)
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for i = 1:length(rop)
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% Set ROP
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Rx_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",rop(i)).process(Combined_sig);
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@@ -132,16 +140,16 @@ for s = 1:length(sir)
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Rx_sig = LP_phd.process(Rx_sig);
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% Scope
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Rx_sig = Scope("fsimu",Rx_sig.fs,"fadc",fadc,...
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Scpe_sig = Scope("fsimu",Rx_sig.fs,"fadc",fadc,...
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"delay",0,"fixed_delay",0,"lpf_bw",scp_bw,"filtertype",filtertypes.butterworth,...
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"samplingdelay",0,"rand_samplingdelay",0,"freq_offset",0,"samp_jitter",0,...
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"adcresolution",16,"quantbuffer",0.1,'block_dc',1,'lpf_active',1,'H_lpf',LP_scpe).process(Rx_sig);
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% Sample to 2x fsym
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Rx_sig = Rx_sig.resample("fs_in",fadc,"fs_out",2*fsym);
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Scpe_sig = Scpe_sig.resample("fs_in",fadc,"fs_out",2*fsym);
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% Sync Rx signal with reference
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[Rx_sig,D,cuts] = Rx_sig.tsynch("reference",digimod_out,"fs_ref",fsym);
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[Scpe_sig,D,cuts] = Scpe_sig.tsynch("reference",digimod_out,"fs_ref",fsym);
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% % % simple EQ (optimum mudc: 0.05 -> 0.005)
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% EQ_sig = EQ_silas_plain("Ne",[20,8,8],"Nb",[2,0,0],"trainlength",4096,"mu_dc_dd",0.005,"mu_dc_train",0.05,...
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@@ -149,12 +157,12 @@ for s = 1:length(sir)
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%
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% EQ_sig = EQ("K",2,"plottrain",0,"plotfinal",0,...
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% "training_length",4096,"training_loops",3,...
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% "Ne",[20,8,8],"Nb",[2,0,0],...
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% "DCmu",0.005,"DDmu",[0.0004 0.0006 0.0003 0.005],"DFEmu",0.005,"FFEmu",0.00,...
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% "Ne",[50,8,8],"Nb",[2,0,0],...
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% "DCmu",0.00,"DDmu",[0.0004 0.0006 0.0003 0.005],"DFEmu",0.005,"FFEmu",0.00,...
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% "dd_loops",3,"epsilon",[10 100 1000 ],"M",2,...
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% "thres",[0.005 0.004 0.0005 ],"l1act",0,"delay",0,"rho",0.0005,"ideal_dfe",0,"DB_aim",0).process(Rx_sig,digimod_out);
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% "thres",[0.005 0.004 0.0005 ],"l1act",0,"delay",0,"rho",0.0005,"ideal_dfe",0,"DB_aim",0).process(Scpe_sig,digimod_out);
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EQ_sig = EQ_silas("Ne",[20,2,0],"Nb",[2,0,0],"trainlength",4096,...
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EQ_sig = EQ_silas("Ne",[50,8,8],"Nb",[2,0,0],"trainlength",4096,...
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"sps",2,...
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"mu_dc_dd",0.00,...
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"mu_dc_train",0.00,...
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@@ -166,18 +174,18 @@ for s = 1:length(sir)
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"trainloops",3,...
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"eq_parallelization_blocklength",1, ...
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"eq_updatelatency",1,...
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"eq_avg_blocklength",0).process(Rx_sig,digimod_out);
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"eq_avg_blocklength",0).process(Scpe_sig,digimod_out);
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% Demap
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Rx_Bits = PAMmapper(M,0).demap(EQ_sig);
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Rx_symboldecision = PAMmapper(M,0).decide_pamlevel(EQ_sig,"symbol_levels",unique(digimod_out.signal));
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levels = PAMmapper(M,0).separate_pamlevels(EQ_sig);
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%levels = PAMmapper(M,0).separate_pamlevels(Rx_sig.resample("fs_in",Rx_sig.fs,"fs_out",fsym));
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level_avg(s,l,pnk,n,m,i,:) = mean(levels,'omitnan');
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level_std(s,l,pnk,n,m,i,:) = std(levels,'omitnan');
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%
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% Rx_symboldecision = PAMmapper(M,0).decide_pamlevel(EQ_sig,"symbol_levels",unique(digimod_out.signal));
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%
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% levels = PAMmapper(M,0).separate_pamlevels(EQ_sig);
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% %levels = PAMmapper(M,0).separate_pamlevels(Rx_sig.resample("fs_in",Rx_sig.fs,"fs_out",fsym));
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%
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% level_avg(s,l,pnk,n,m,i,:) = mean(levels,'omitnan');
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% level_std(s,l,pnk,n,m,i,:) = std(levels,'omitnan');
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% BER
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[~,errors_bm,BER(s,l,pnk,n,m,i),errors] = calc_ber(Rx_Bits.signal,bitpattern,"skip_front",0,"skip_end",0,"returnErrorLocation",1);
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@@ -191,12 +199,22 @@ for s = 1:length(sir)
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end
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end
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end
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save('big_run_easy_EQ_one_nonlin');
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save('pam_level_comp');
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disp('saved_run2');
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end
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end
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end
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% figure('Name','spectrum')
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% tiledlayout(4,1)
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% nexttile
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% spectrum_plot(E.signal,E.fs,'spectrum');
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% nexttile
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% spectrum_plot(Opt.signal,Opt.fs,'spectrum');
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% nexttile;
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% spectrum_plot(Rx_sig.signal,Rx_sig.fs,'spectrum');
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% nexttile
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% spectrum_plot(EQ_sig.signal,EQ_sig.fs,'spectrum');
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