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Now normalizing the IFFT outputs

pull/2/head
David Protzman 2022-04-24 16:44:07 -04:00
rodzic 3b1448497b
commit 0544182553
1 zmienionych plików z 9 dodań i 3 usunięć
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12
matlab/updated_scripts/transmit/create_burst.m
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@ -142,8 +142,14 @@ function [samples] = create_burst(sample_rate, frame_configuration, add_turbo_pa
time_domain_symbols = zeros(9, fft_size);
for symbol_idx=1:9
time_domain_symbols(symbol_idx,:) = ifft(fftshift(freq_domain_symbols(symbol_idx,:)));
% Move to the time domain
samples = ifft(fftshift(freq_domain_symbols(symbol_idx,:)));
% Normalize the output of the FFT
samples = samples / fft_size;
time_domain_symbols(symbol_idx,:) = samples;
if (show_debug_plots)
figure(4);
subplot(3, 3, symbol_idx);
@ -152,8 +158,8 @@ function [samples] = create_burst(sample_rate, frame_configuration, add_turbo_pa
end
% Replace the contents of symbols 4 and 6 with the correct ZC sequence
time_domain_symbols(4,:) = create_zc(fft_size, 4);
time_domain_symbols(6,:) = create_zc(fft_size, 6);
time_domain_symbols(4,:) = create_zc(fft_size, 4) / fft_size;
time_domain_symbols(6,:) = create_zc(fft_size, 6) / fft_size;
%% Add Cyclic Prefix