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Stuff during JLT writing...

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Silas Oettinghaus
2025-11-21 15:37:58 +01:00
parent 888cbbd23e
commit 75dddca1f2
25 changed files with 946 additions and 189 deletions
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39
projects/standard_system/freqresp_test.m
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@@ -1,28 +1,19 @@
measure = 0;
measure = 1;
freqresp = ChannelFreqResp("Nacq",1024,"Navg",64,"Ncp",70,"f_ref",256e9);
%
Digi_sig = freqresp.buildOFDM();
Digi_sig.spectrum("fignum",1112,"displayname",['maxamp:',num2str(maxamp)]);
Digi_sig = Filter('filtdegree',3,"f_cutoff",70e9,"fs",256e9,"filterType",filtertypes.butterworth,"active",true).process(Digi_sig);
Digi_sig = Filter('filtdegree',3,"f_cutoff",70e9,"fs",256e9,"filterType",filtertypes.bessel_inp,"active",true).process(Digi_sig);
if measure
freqresp = ChannelFreqResp("Nacq",1024,"Navg",64,"Ncp",70,"f_ref",256e9);
%
Digi_sig = freqresp.buildOFDM();
else
[Digi_sig,Symbols,Bits] = PAMsource("fsym",fsym,"M",M,"order",18,"useprbs",0,...
"fs_out",M8199.fdac,"applyclipping",1,"clipfactor",1.7,"applypulseform",1,"pulseformer",Pform,"randkey",pn_key,"mrds_code",usemrds,"mrds_blocklength",512).process();
end
freqresp.estimate(Digi_sig,"fileName",'','save',false);
Digi_sig.spectrum("fignum",1112,"displayname",['Signal']);
freqresp.plot()
maxamp = -1;
El_sig = freqresp.precomp(Digi_sig,"maxampdb",maxamp);
El_sig.spectrum("fignum",1112,"displayname",['maxamp:',num2str(maxamp)]);
El_sig = Filter('filtdegree',2,"f_cutoff",60e9,"fs",256e9,"filterType",filtertypes.butterworth,"active",true).process(El_sig);
if measure
freqresp.estimate(El_sig,"fileName",'','save',false);
end
El_sig.spectrum("fignum",1112,"displayname",['after filter; maxamp:',num2str(maxamp)]);
a = gca;
a.YTick = [-30,-20,-10,0];