mirror of https://github.com/PentHertz/srsLTE.git
27 lines
697 B
Matlab
27 lines
697 B
Matlab
clear
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ue = struct('NULRB',6,'NDLRB',6);
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d = lteULResourceGridSize(ue);
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rgrid = complex(rand(d)-0.5,rand(d)-0.5);
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waveform = lteSCFDMAModulate(ue,rgrid,0);
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wave = [];
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freq_correct=[];
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for i=1:14
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symbol = ifft(ifftshift([zeros(28,1); rgrid(:,i); zeros(28,1)]),128);
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if (i==1 || i==8)
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cp_len=10;
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else
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cp_len=9;
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end
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symbol_cp=[symbol((128-cp_len+1):128); symbol(1:128)];
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freq_correct=[freq_correct; exp(1i*pi*(-cp_len:127)'/128)];
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wave = [wave; symbol_cp];
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end
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wave=wave.*freq_correct;
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%wave=transpose(wave);
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%plot(1:138,fftshift(fft(waveform(1:138))),1:138,fftshift(fft(wave(1:138))))
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plot(abs(wave(1:138)-waveform(1:138)))
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mean(abs(wave-waveform))
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