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function plot_ofdm(fft_size, occ_tones)
ofdm = read_complex_binary('ofdm_corr_out_c.dat');
ofdm_split = split_vect(ofdm, occ_tones);
fftc = read_complex_binary('fft_out_c.dat');
fftc_split = split_vect(fftc, fft_size);
figure(1)
set(gcf, 'Position', [50 50 1000 600]);
a = size(ofdm_split);
if nargin == 3
maxcount = count;
if maxcount > a(1)
error('plot_ofdm:tolong', 'Requested count size exceeds size of vectors');
end
else
maxcount = a(1);
end
for i = 1:20000
x = ofdm_split(i,:);
y = fftc_split(i+1,:);
subplot(2,2,1)
plot(real(x), imag(x), 'bo')
set(gca, 'FontSize', 30, 'FontWeight', 'Bold');
axis([-1.5, 1.5, -1.5, 1.5])
title('I&Q Constellation', 'FontSize', 36);
xlabel('Inphase', 'FontSize', 32);
ylabel('Quadrature', 'FontSize', 32);
subplot(2,2,3)
plot(angle(x*j), 'bo')
set(gca, 'FontSize', 30, 'FontWeight', 'Bold');
axis([0, occ_tones, -3.5, 3.5])
title('Equalized Symbol Angle', 'FontSize', 36);
xlabel('Bin Number (Occ. Tones)', 'FontSize', 32);
ylabel('Symbol Angle', 'FontSize', 32);
subplot(2,2,2)
plot(angle(y*j), 'bo')
set(gca, 'FontSize', 30, 'FontWeight', 'Bold');
axis([0, fft_size, -3.5, 3.5])
title('Unequalized Symbol Angle', 'FontSize', 36);
xlabel('Bin Number (FFT Size)', 'FontSize', 32);
ylabel('Symbol Angle', 'FontSize', 32);
Y = 20*log10(abs(y) ./ max(abs(y)));
subplot(2,2,4)
plot(Y, 'b-')
set(gca, 'FontSize', 30, 'FontWeight', 'Bold');
axis([0, fft_size, -50, 1]);
title('Frequency Domain of Unequalized Rx', 'FontSize', 36);
xlabel('Bin Number (FFT Size)', 'FontSize', 32);
ylabel('Power (dB)', 'FontSize', 32);
% N = 20*log10(var(abs(x)-1))
disp(sprintf('Symbol Number: %d\n', i))
% disp(sprintf('\tFreq Error: %f\n', anglesh_pn(1+(i-1)*fft_size)))
pause
end
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