71 lines
1.4 KiB
Matlab
71 lines
1.4 KiB
Matlab
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clear
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%% Set Simulation Variables
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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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% Modulation
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M = 4; %PAM-M
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bitpattern = zeros(N,log2(M));
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% Symbol Rate
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fsym = 112e9;
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% DAC Rate
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fdac = 120e9;
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% Simulation oversampling rate "k";
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kover = 16;
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% ADC Rate
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fadc = 256e9;
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% Simulation frequency in "analog domain"
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fsimu = kover * fdac ;
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%% CONSTRUCT ALL CLASSES
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digimod = PAMmapper(M,0);
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pulsef = Pulseformer("pulseform","rrc","fdac",fdac,"fsym",fsym,"pulselength",32,"rrcalpha",0.05);
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awg = AWG('preset','M8199B','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",30e9,"fsamp",fdac,"filterType",filtertypes.bessel_inp);
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%% PROCESS
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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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% 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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mod_out = pulsef.process(mod_out);
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test = applyPulseShaping(reference.signal,fsym,fdac);
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% AWG -> ELECTRICAL DOMAIN
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X = lp_laser.process(mod_out);
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%X.spectrum(fsimu,"displayname",'AWG out','figurename','after AWG');
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