MPI Simulations and stuff

Classes/01_transmit/PAMsource.m

@@ -0,0 +1,117 @@
+classdef PAMsource
+    %NAME Summary of this class goes here
+    %   Detailed explanation goes here
+
+    properties(Access=public)
+        order
+        useprbs
+        M
+        fsym
+        randkey
+
+        applypulseform
+        pulseformer
+
+        fs_out
+
+        applyclipping
+        clipfactor
+    end
+
+    methods (Access=public)
+        function obj = PAMsource(options)
+            %NAME Construct an instance of this class
+            %   Detailed explanation goes here
+
+            arguments
+                options.order = 16;
+                options.useprbs = true;
+                options.M = true
+                options.fsym = 112e9;
+                options.randkey = 0;
+
+                options.applypulseform = 1;
+                options.pulseformer Pulseformer;
+
+                options.fs_out ;
+
+                options.applyclipping = 0;
+                options.clipfactor = 10;
+            end
+
+
+            fn = fieldnames(options);
+            for n = 1:numel(fn)
+                try
+                    obj.(fn{n}) = options.(fn{n});
+                end
+            end
+
+            if boolean(obj.applypulseform) && isempty(obj.pulseformer)
+                warning('No Pulseformer given. Proceeding with RRC and alpha 0.05');
+                options.pulseformer = Pulseformer("fsym",obj.fsym,"fdac",obj.fs_out,"pulse","rrc","pulselength",16,"rrcalpha",0.05);
+            end
+           
+
+
+        end
+
+        function  [digi_sig,symbols,bits] = process(obj)
+
+            %%%%% PRBS Generation in correct shape for Modulation Format %%%%%%
+            O = obj.order; %order of prbs
+            N = 2^(O-1); %length of prbs
+            [~,seed] = prbs(O,1); %initialize first seed of prbs
+            bitpattern=[];
+
+            if obj.useprbs
+                for i = 1:log2(obj.M)
+                    [bitpattern(:,i),seed] = prbs(O,N,seed);
+                end 
+            else
+                s = RandStream('twister','Seed',obj.randkey);
+                for i = 1:log2(obj.M)
+                    bitpattern(:,i) = randi(s,[0 1], N, 1);
+                end 
+            end
+
+            if obj.M == 6
+                bitpattern = reshape(bitpattern,[],1);
+                bitpattern = bitpattern(1:end-mod(length(bitpattern),5));
+            end
+
+            bits = Informationsignal(bitpattern);
+
+            symbols = PAMmapper(obj.M,0).map(bits);
+            symbols.fs = obj.fsym;
+
+            if obj.applyclipping
+                sym_min = min(symbols.signal);
+                sym_max = max(symbols.signal);
+            end
+
+            %%%%% Pulseforming %%%%%%
+            if obj.applypulseform
+                digi_sig = obj.pulseformer.process(symbols);
+            else
+                digi_sig = symbols;
+            end
+
+            %%%%% Resample to f DAC %%%%%%
+            digi_sig = digi_sig.resample("fs_in",digi_sig.fs,"fs_out",obj.fs_out,"n",10,"beta",5);
+
+            %%%%% Hard clip digital signal to PAM range before DAC %%%%%%
+            if obj.applyclipping
+                digi_sig.signal = clip(digi_sig.signal  ,  sym_min * obj.clipfactor  ,  sym_max * obj.clipfactor);
+            end
+
+            % append to logbook
+            lbdesc = ['Generated PAM Signal'];
+            digi_sig  = digi_sig.logbookentry(lbdesc);
+
+        end
+
+
+    end
+
+end