silas/imdd_silas
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Many changes

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

52
test/mapping_minimal_example.m
View File

@@ -7,6 +7,55 @@ randkey = 1;
fsym = 112e9;
viewresults = 0;
%%%%% Mapping %%%%%
M = 8;
data = 0:M-1;
bitpersymbol = log2(M);
%Bits
bits = int2bit(data,bitpersymbol, true);
%Integers
ints = bit2int(bits,bitpersymbol, true);
Tx_bits = Informationsignal(bits');
Digi_Mod = PAMmapper(M,0);
Symbols = Digi_Mod.map(Tx_bits);
moveitgray = Symbols.signal;
%Gray Symbol Mapping
matlabgray = pammod(ints,M,0,'gray');
scaling_factor = rms(unique(matlabgray));
matlabgray = matlabgray ./ scaling_factor;
%Demod
moveitgray = moveitgray.* scaling_factor;
matlabgray = matlabgray .* scaling_factor;
ints_demap = pamdemod(matlabgray,M,0,'gray');
bits_demap = int2bit(ints_demap,bitpersymbol, true);
% for i = 1:M
% fprintf('%d , %d , %d --> %d \n',bits(1,i),bits(2,i),bits(3,i),matlabgray(i));
% end
%
% for i = 1:M
% fprintf('%d , %d , %d --> %d \n',bits(1,i),bits(2,i),bits(3,i),moveitgray(i));
% end
scatterplot(matlabgray,1,0,'b*');
for k = 1:M
text(real(matlabgray(k)),imag(matlabgray(k))+0.6,num2str(ints_demap(k)),"Color",[1 1 1]);
text(real(matlabgray(k)),imag(matlabgray(k))-1.6,num2str(bits(:,k)),"Color",'blue');
text(real(moveitgray(k)),imag(moveitgray(k))-3,num2str(bits(:,k)),"Color",'green');
end
axis([-M M -3 2])
symbols = bit2int(bitGroups',bitpersymbol, true);
%%%%% PRBS Generation in correct shape for Modulation Format %%%%%%
O = 10; %order of prbs
@@ -34,6 +83,9 @@ Tx_bits = Informationsignal(bitpattern);
Digi_Mod = PAMmapper(M,0);
symbols = bitMapper(bitpattern, M, 'PAM');
Symbols = Digi_Mod.map(Tx_bits);
Rx_bits = PAMmapper(M,0).demap(Symbols);