118 lines
4.2 KiB
Matlab
118 lines
4.2 KiB
Matlab
|
|
usemrds = 0;
|
|
|
|
%% Init Params
|
|
link_length = 10000; %meter
|
|
|
|
Optfilter = Filter('filtdegree',6,"f_cutoff",fsym.*0.7,"fs",fdac*kover,"filterType",filtertypes.gaussian,"active",true);
|
|
|
|
tic
|
|
|
|
% SETUP HERE: %%
|
|
kover = 8;
|
|
M8199 = M8199A("kover",kover);
|
|
fdac = M8199.fdac;
|
|
fsym = round(datarate / log2(M)) * 1e9;
|
|
rrcalpha = 0.05;
|
|
Pform = Pulseformer("fsym",fsym,"fdac",4*fsym,"pulse","rrc","pulselength",16,"rrcalpha",rrcalpha);
|
|
|
|
% MAIN SIGNAL
|
|
|
|
%%%%% Symbol Generation %%%%%%
|
|
[Digi_sig,Symbols,Bits] = PAMsource("fsym",fsym,"M",M,"order",18,"useprbs",0,...
|
|
"fs_out",M8199.fdac,"applyclipping",1,"clipfactor",1.4,"applypulseform",1,"pulseformer",Pform,"randkey",pn_key,"mrds_code",usemrds).process();
|
|
|
|
%%%%% AWG %%%%%%
|
|
El_sig = M8199.process(Digi_sig);
|
|
%El_sig.signal = awgn(El_sig.signal,20,'measured',pn_key);
|
|
|
|
%%%%% Lowpass el. components %%%%%%
|
|
El_sig = Filter('filtdegree',2,"f_cutoff",60e9,"fs",fdac*kover,"filterType",filtertypes.butterworth,"active",true).process(El_sig);
|
|
|
|
%%%%% Electrical Driver Amplifier %%%%%%
|
|
El_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",9).process(El_sig);
|
|
|
|
fprintf('Driver output power: %s dBm\n', num2str(El_sig.power));
|
|
fprintf('Driver output peak voltage: %s Vpp \n', num2str(max(El_sig.signal)-min(El_sig.signal)));
|
|
|
|
% INTERFERENCE SIGNAL
|
|
|
|
%%%%% Symbol Generation %%%%%%
|
|
[Digi_sig_i,Symbols_i,Bits_i] = PAMsource("fsym",fsym,"M",M,"order",18,"useprbs",0,...
|
|
"fs_out",M8199.fdac,"applyclipping",1,"clipfactor",1.4,"applypulseform",1,"pulseformer",Pform,"randkey",pn_key*2,"mrds_code",usemrds).process();
|
|
|
|
%%%%% AWG %%%%%%
|
|
El_sig_i = M8199.process(Digi_sig_i);
|
|
%El_sig_i.signal = awgn(El_sig_i.signal,20,'measured',pn_key*2);
|
|
|
|
%%%%% Lowpass before Modulator %%%%%%
|
|
El_sig_i = Filter('filtdegree',2,"f_cutoff",60e9,"fs",fdac*kover,"filterType",filtertypes.butterworth,"active",true).process(El_sig_i);
|
|
El_sig_i = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",9).process(El_sig_i);
|
|
|
|
|
|
fprintf('Driver output power: %s dBm\n', num2str(El_sig.power));
|
|
fprintf('Driver output peak voltage: %s Vpp \n', num2str(max(El_sig.signal)-min(El_sig.signal)));
|
|
|
|
|
|
% MAIN SIGNAL
|
|
%%%%% MODULATE E/O CONVERSION %%%%%%
|
|
vbias_rel = 0.6;
|
|
u_pi = 2.9;
|
|
vbias = -vbias_rel*u_pi;
|
|
|
|
[Opt_sig] = EML("mode",eml_mode.im_cosinus,"power",3,"fsimu",El_sig.fs,"lambda",1290,"bias",vbias,"u_pi",u_pi,"linewidth",laser_linewidth,"randomkey",pn_key).process(El_sig);
|
|
|
|
Opt_sig = Optfilter.process(Opt_sig);
|
|
|
|
Opt_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",0).process(Opt_sig);
|
|
|
|
% INTERFERENCE SIGNAL
|
|
%%%%% MODULATE E/O CONVERSION %%%%%%
|
|
|
|
[Opt_sig_i] = EML("mode",eml_mode.im_cosinus,"power",3,"fsimu",El_sig.fs,"lambda",1290,"bias",vbias,"u_pi",u_pi,"linewidth",laser_linewidth,"randomkey",pn_key+1).process(El_sig_i);
|
|
|
|
Opt_sig_i = Optfilter.process(Opt_sig_i);
|
|
|
|
Opt_sig_i = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",0).process(Opt_sig_i);
|
|
|
|
|
|
|
|
|
|
for j = 1:j_
|
|
|
|
sir = wh.parameter.sir.values(j);
|
|
|
|
%%%%% Interference Signal Fiber Prop %%%%%%
|
|
Opt_sig_i_prop = Fiber("fsimu",Opt_sig_i.fs,"fiber_length",link_length/1000,"alpha",0.3,"D",0,"lambda0",1310,"gamma",0,"Dslope",0.07).process(Opt_sig_i);
|
|
|
|
Opt_sig_i_prop = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",Opt_sig.power-sir).process(Opt_sig_i_prop);
|
|
|
|
%%%%% ADD Interference and Main Signal %%%%%%
|
|
Opt_sig_comb = Opt_sig_i_prop + Opt_sig;
|
|
|
|
%%%%% Interference Signal Fiber Prop %%%%%%
|
|
Opt_sig_comb = Fiber("fsimu",Opt_sig_comb.fs,"fiber_length",link_length/1000,"alpha",0.3,"D",0,"lambda0",1310,"gamma",0,"Dslope",0.07).process(Opt_sig_comb);
|
|
|
|
% Receiver ROP curve
|
|
for i = 1:i_
|
|
rop=wh.parameter.rop.values(i);
|
|
|
|
% Set ROP
|
|
Rx_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",rop).process(Opt_sig_comb);
|
|
|
|
%%%%%% Square Law %%%%%%
|
|
Rx_sig = Photodiode("fsimu",fdac*kover,"dark_current",2e-08,"responsivity",1,"temperature",20,"nep",1.8e-11).process(Rx_sig);
|
|
|
|
%%%%%% Lowpass PhDiode %%%%%%
|
|
Rx_sig = Filter('filtdegree',2,"f_cutoff",70e9,"fs",fdac*kover,"filterType",filtertypes.gaussian,"active",true).process(Rx_sig);
|
|
|
|
end
|
|
end
|
|
|
|
|
|
rop_curve;
|
|
|
|
|
|
|
|
|