rpitx/csdr
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Now showing E_b/N_0 in the plot

Browse source
This commit is contained in:
ha7ilm 2017-04-30 10:06:31 +02:00
parent 5934d1f7a3
commit addd52f148
1 changed files with 10 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
grc_tests/bpsk31_tedvar.m
View file

@ -54,13 +54,13 @@ function fmtplot(h)
set(FN,'FontName','times'); set(FN,'FontName','times');
FS = findall(h,'-property','FontSize'); FS = findall(h,'-property','FontSize');
set(FS,'FontSize',18); set(FS,'FontSize',18);
xlabel('SNR [dB]'); xlabel('E_b/N_0 [dB]');
ylabel('Phase error variance [rad^2]'); ylabel('Phase error variance [rad^2]');
end end
snrs_gardner=0:5:30 snrs=-5:5:30
%snrs_gardner=[10] %snrs=[10]
error_values_gardner=mkvarplot('EARLYLATE',snrs_gardner); error_values_gardner=mkvarplot('EARLYLATE',snrs);
%{ %{
snrs_earlylate=0:256 snrs_earlylate=0:256
error_values_earlylate=mkvarplot('EARLYLATE',snrs_earlylate); error_values_earlylate=mkvarplot('EARLYLATE',snrs_earlylate);
@ -69,8 +69,12 @@ error_values_earlylate=mkvarplot('EARLYLATE',snrs_earlylate);
%graphics_toolkit("gnuplot") %graphics_toolkit("gnuplot")
h=figure(1); h=figure(1);
semilogy(snrs_gardner, error_values_gardner, 'linewidth', 2);
title('Variance curve'); ebn0=snrs-13.26-10*log10(1/256.)
%13.56 dB is the difference between the real (measured) SNR and the number input to awgn_cc
semilogy(ebn0, error_values_gardner, 'linewidth', 2);
title('Estimation variance');
fmtplot(h) fmtplot(h)
pause pause