stuff from PC
This commit is contained in:
Silas Oettinghaus
@@ -1,10 +1,16 @@
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sir_loop = -30:5:-10;
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rng(2020);
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for lp = 1:5
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sir = sir_loop(lp);
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rkey = 13;
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rng(rkey);
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%% Set Simulation Variables
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O = 17; %order of prbs
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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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@@ -32,27 +38,30 @@ fsimu = kover * fdac ;
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digimod = PAMmapper(M,0);
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pulseform = Pulseformer("pulseform","rrc","fdac",fdac,"fsym",fsym,"pulselength",32,"rrcalpha",0.05);
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pulseform = Pulseformer("pulseform","rrc","fdac",fdac,"fsym",fsym,"pulselength",32,"rrcalpha",0.1);
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awg = AWG('fdac',fdac,'kover',kover,'lpf_active',1,'f_cutoff',56e9,'lpf_type',filtertypes.gaussian,'bit_resolution',5.5);
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lp_laser = Filter('filtdegree',1,"f_cutoff",50e9,"fsamp",fdac*kover,"filterType",filtertypes.bessel_inp);
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u_pi = 4.6;
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u_pi = 3.5;
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vbias = (0.5*u_pi)-u_pi;
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extmodlaser = EML("mode",eml_mode.im_cosinus,"power",5,"fsimu",fsimu,"lambda",1550,"bias",vbias,"u_pi",u_pi,"linewidth",1e6);
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fib = Fiber("fsimu",fdac*kover,"fiber_length",1,"alpha",0.2,"D",17,"lambda0",1550,"gamma",0);
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fib = Fiber("fsimu",fdac*kover,"fiber_length",0,"alpha",0.2,"D",16,"lambda0",thz2nm(193.1),"gamma",0);
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reflectionpoint = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",-20);
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reflectionprop = Fiber("fsimu",fdac*kover,"fiber_length",1,"alpha",0.2,"D",17,"lambda0",1550,"gamma",0);
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reflectionpoint = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",sir);
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reflectionprop = Fiber("fsimu",fdac*kover,"fiber_length",1,"alpha",0.2,"D",16,"lambda0",1550,"gamma",0);
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opticatten = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",0);
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edfaamp = Amplifier("amp_mode","edfa_increase_nase","gain_mode","output_power","amplification_db",0,"nase_mode","generate_ase","noifig",5);
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opticatten = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",-5);
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phdiode = Photodiode("fsimu",fdac*kover,"dark_current",2e-08,"responsivity",1,"temperature",20);
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edfaamp = Amplifier("amp_mode","edfa_increase_nase","gain_mode","output_power","amplification_db",0,"nase_mode","generate_ase","noifig",10.5);
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phdiode = Photodiode("fsimu",fdac*kover,"dark_current",0,"responsivity",1,"temperature",20);
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lp_diode = Filter('filtdegree',1,"f_cutoff",50e9,"fsamp",fdac*kover,"filterType",filtertypes.bessel_inp);
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@@ -61,7 +70,7 @@ scp = Scope("fsimu",fdac*kover,"fadc",fadc,...
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"samplingdelay",0,"rand_samplingdelay",0,"freq_offset",0,"samp_jitter",0,...
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"adcresolution",6,"quantbuffer",0.1,'block_dc',1);
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eq = EQ("K",2,"plottrain",0,"plotfinal",0,...
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eq = EQ("K",2,"plottrain",0,"plotfinal",0,...
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"training_length",4096,"training_loops",5,...
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"Ne",[50,0,0],"Nb",[0,0,0],...
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"DCmu",0.005,"DDmu",[0.0004 0.0004 0.0004 0.0004 ],"DFEmu",0.005,"FFEmu",0.00,...
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@@ -71,107 +80,97 @@ eq = EQ("K",2,"plottrain",0,"plotfinal",0,...
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%% PROCESS
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fiblen = 0;
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for lp1 = 1:length(fiblen)
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% change parameters
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fib.fiber_length = fiblen(lp1);
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% PRBS Generation
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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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bitpattern = prms_out';
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% Build Inf. signal class
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bits = Informationsignal(bitpattern);
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% Digi Mod
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mod_out = digimod.map(bits);
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% merken für EQ training
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reference = mod_out;
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% shape shape
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X = pulseform.process(mod_out);
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test = applyPulseShaping(reference.signal,fsym,fdac);
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% AWG -> ELECTRICAL DOMAIN
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awg_out = awg.process(X);
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X = lp_laser.process(awg_out);
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X = lp_laser.process(X);
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X = X.normalize("mode","oneone");
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X.signal = X.signal .* 1.3800;
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% Laser; Modulation -> OPTICAL DOMAIN
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X = extmodlaser.process(X);
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% Fiber Propagation
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X = fib.process(X);
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%% Reflect with attenuation
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R = reflectionpoint.process(X);
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% Propagate
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R = reflectionprop.process(R);
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% Delay
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R = R.delay("delay_meter",200);
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% Add together
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X = X+R;
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%%
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X = opticatten.process(X);
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X = edfaamp.process(X);
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% Photo Diode -> ELECTRICAL DOMAIN
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X = phdiode.process(X);
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X = lp_diode.process(X);
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%X.spectrum(fsimu,"displayname",'diode out','figurename','after diode');
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% Oscilloscope (Sampling to f_adc; Quantization; Bandwidth Limitation)
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X = scp.process(X);
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% Resample to Symbol Rate
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X = X.resample("fs_out",2*fsym,"fs_in",fadc);
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% Normalize
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X = X.normalize("mode","rms");
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% Equalizer
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eq_out = eq.process(X,reference);
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rx_series = eq_out.signal;
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% Digi Demod
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demap_out = digimod.demap(eq_out);
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% BER
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[bits,errors,BER] = calc_ber(demap_out.signal(1:end-2,:),bitpattern(1:end,:),0);
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disp(['BER: ', sprintf('%2E',BER), ' ERRORS: ' ,num2str(sum(errors))]);
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bercurve(lp1) = BER;
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errorscurve(lp1) = sum(errors);
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% PRBS Generation
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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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%bitpattern = prms_out';
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% Build Inf. signal class
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bits = Informationsignal(bitpattern);
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% Digi Mod
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mod_out = digimod.map(bits);
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% merken für EQ training
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reference = mod_out;
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% shape shape
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X = pulseform.process(mod_out);
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% AWG -> ELECTRICAL DOMAIN
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awg_out = awg.process(X);
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X = lp_laser.process(awg_out);
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X = lp_laser.process(X);
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X = X.normalize("mode","oneone");
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X.signal = X.signal .* 0.6*(u_pi/2-abs(((0.5*u_pi)-u_pi/2)));
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% Laser; Modulation -> OPTICAL DOMAIN
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X = extmodlaser.process(X);
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% Fiber Propagation
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X = fib.process(X);
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%% Reflect with attenuation
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R = reflectionpoint.process(X);
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% Propagate
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R = reflectionprop.process(R);
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% Delay
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R = R.delay("delay_meter",200);
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% Add together
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X = X+R;
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X.spectrum(fsimu,"displayname",['SIR: ',num2str(sir)],"figurename",'spectrum')
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%%
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X = opticatten.process(X);
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X = edfaamp.process(X);
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% Photo Diode -> ELECTRICAL DOMAIN
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X = phdiode.process(X);
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X = lp_diode.process(X);
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% Oscilloscope (Sampling to f_adc; Quantization; Bandwidth Limitation)
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X = scp.process(X);
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% Resample to Symbol Rate
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X = X.resample("fs_out",2*fsym,"fs_in",fadc);
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% Normalize
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X = X.normalize("mode","rms");
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% Equalizer
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eq_out = eq.process(X,reference);
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% Digi Demod
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demap_out = digimod.demap(eq_out);
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% BER
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[bits,errors,BER] = calc_ber(demap_out.signal(1:end-1,:),bitpattern(1:end,:),1000);
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disp(['BER: ', sprintf('%2E',BER), ' ERRORS: ' ,num2str(sum(errors))]);
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%% Generate some Plots
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if 1
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if 0
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col = cbrewer2('Paired',8);
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figure(22)
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figure(11)
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clf
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subplot(2,1,1)
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hold on
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plot(reference.signal(4150:4175),'DisplayName','Tx','Color',col(1,:),'LineWidth',3);
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plot(rx_series(4150:4175),'DisplayName','Rx after EQ','Color',col(6,:),'LineWidth',1);
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plot(eq_out.signal(4150:4175),'DisplayName','Rx after EQ','Color',col(6,:),'LineWidth',1);
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title('Modulated Sequence Zoom');
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legend
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hold off
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@@ -183,24 +182,29 @@ if 1
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legend
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hold off
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end
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if 1
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col = cbrewer2('Paired',8);
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xax = 1:eq_out.length;
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figure(12)
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figure(3)
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sgtitle('')
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subplot(1,4,1:2)
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scatter(1:4:X.length,X.signal(1:4:end),4,'.','MarkerEdgeColor',col(6,:),'DisplayName','Before EQ');
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xlim([1, xax(end)]);
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%ylim([-2 2]);
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xlabel('Sampling Index')
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ylabel('Amplitude')
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legend
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% subplot(1,4,1:2)
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% scatter(1:4:X.length,X.signal(1:4:end),4,'.','MarkerEdgeColor',col(6,:),'DisplayName','Before EQ');
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% xlim([1, xax(end)]);
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% %ylim([-2 2]);
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% xlabel('Sampling Index')
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% ylabel('Amplitude')
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% legend
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subplot(1,4,3:4)
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subplot(1,5,lp)
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scatter(xax,eq_out.signal,4,'.','MarkerEdgeColor',col(6,:),'DisplayName','After EQ');
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xlim([1, xax(end)]);
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%ylim([-2 2]);
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ylim([-2 2]);
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xlabel('Sampling Index')
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ylabel('Amplitude')
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legend
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end
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end
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