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projects/IMDD_base_system/imdd_it.m

@@ -7,7 +7,7 @@ if 1
     uloops.db_precode   = [0];
     uloops.bitrate      = [330].*1e9; %[300,330,360,390,420,450,480]
     uloops.laser_wavelength = [1310];
-    uloops.M            = [6];
+    uloops.M            = [4];
     uloops.link_length  = [2]; % 1,2,3,5,6,8,10
     wh = DataStorage(uloops);
     wh.addStorage("ber");

projects/IMDD_base_system/imdd_model.m

@@ -139,7 +139,7 @@ if simulation_mode
     db_encode = 0;
     apply_pulsef = 1;
     [Digi_sig,Symbols,Tx_bits] = PAMsource(...
-        "fsym",fsym,"M",M,"order",18,"useprbs",1,...
+        "fsym",fsym,"M",M,"order",18,"useprbs",0,...
         "fs_out",fdac,...
         "applyclipping",0,"clipfactor",1.5,...
         "applypulseform",apply_pulsef,"pulseformer",Pform,...
@@ -149,6 +149,8 @@ if simulation_mode
 
     Digi_sig.spectrum("displayname",'Digi Spectrum','fignum',10,'normalizeTo0dB',1);
 
+
+
     %%%%% AWG
     % El_sig = M8199A("kover",kover).process(Digi_sig);
     El_sig = AWG("fdac",fdac,"f_cutoff",fsym,"lpf_active",0,"kover",kover,"bit_resolution",12,"upsampling_method","samplehold","precomp_sinc_rolloff",1).process(Digi_sig);