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This commit is contained in:
Silas Oettinghaus
2025-02-14 14:54:03 +01:00
parent 2be1254611
commit becaf3f6c9
26 changed files with 1507 additions and 1052 deletions
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59
Classes/01_transmit/PAMmapper.m
View File

@@ -23,7 +23,6 @@ classdef PAMmapper
obj.scaling = rms(obj.get_levels());
end
function out = map(obj,signal_in)
@@ -41,11 +40,25 @@ classdef PAMmapper
end
function signalclass_out = demap(obj,signalclass_in)
signalclass_in.signal = obj.demap_(signalclass_in.signal);
lbdesc = ['Demap PAM ',num2str(obj.M),' symbols to bit stream'];
signalclass_in = signalclass_in.logbookentry(lbdesc,obj);
signalclass_out = signalclass_in;
function signal_out = demap(obj,signal_in)
issignalclass = 0;
if isa(signal_in,'Signal')
signalclass = signal_in;
signal_in = signal_in.signal;
issignalclass = 1;
end
signal_out = obj.demap_(signal_in);
if issignalclass
lbdesc = ['Demap PAM ',num2str(obj.M),' symbols to bit stream'];
signal_in = signalclass;
signal_in = signal_in.logbookentry(lbdesc,obj);
signal_in.signal = signal_out;
signal_out = signal_in;
end
end
function pam_sig = map_(obj,bitpattern)
@@ -156,6 +169,8 @@ classdef PAMmapper
case 6 %PAM 6
thres = [-3 5;-1 5;-3 -5;-1 -5;-5 3;-5 1;-5 -3;-5 -1;-1 3;-1 1;-1 -3;-1 -1;-3 3;-3 1;-3 -3;-3 -1;3 5;1 5;3 -5;1 -5;5 3;5 1;5 -3;5 -1;1 3;1 1;1 -3;1 -1;3 3;3 1;3 -3;3 -1];
% thres = [-4 -2 0 2 4];
% thres = thres ./ sqrt(10);
case 8
% 8-ASK
@@ -194,7 +209,6 @@ classdef PAMmapper
end
end
function [data_out] = demap_(obj,data_in)
data_in= data_in';
if obj.M ~= 6
@@ -309,14 +323,35 @@ classdef PAMmapper
end
function [Signal_out] = quantize(obj,Signal_in)
constellation = obj.get_levels();
constellation = constellation ./ rms(constellation);
Signal_out = Signal_in;
dist = abs(Signal_in.signal - constellation);
[~,symbol_idx] = min(dist,[],2); % decision for closest constellation point
Signal_out.signal = constellation(symbol_idx);
Signal_out.signal = reshape(Signal_out.signal,size(Signal_in.signal));
issignalclass = 0;
if isa(Signal_in,'Signal')
issignalclass = 1;
Sig_class = Signal_in;
Signal_in = Signal_in.signal;
end
[~,high_dim_sig] = max(size(Signal_in));
[~,high_dim_const] = max(size(constellation));
if high_dim_sig == high_dim_const
Signal_in = Signal_in';
end
dist = abs(Signal_in - constellation);
[~,symbol_idx] = min(dist,[],2); % decision for closest constellation point
Signal_out = constellation(symbol_idx);
Signal_out = reshape(Signal_out,size(Signal_in));
if issignalclass
Sig_class.signal = Signal_out;
Signal_out = Sig_class;
end
end

2
Classes/01_transmit/Pulseformer.m
View File

@@ -4,6 +4,8 @@ classdef Pulseformer
properties(Access=public)
fdac
end
properties(Access=private)
fsym
pulse
pulselength