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function [] = gen_7_5_kHz()
[s6_n2, s6_e2] = gen_sig(6);
[s15_n2, s15_e2] = gen_sig(15);
[s25_n2, s25_e2] = gen_sig(25);
[s50_n2, s50_e2] = gen_sig(50);
[s75_n2, s75_e2] = gen_sig(75);
[s100_n2, s100_e2] = gen_sig(100);
fd=fopen("kHz_7_5.h","w");
fprintf(fd,"s16 s6n_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s6_n2));
fprintf(fd,"%d,",s6_n2(1:(end-1)));
fprintf(fd,"%d};\n\n",s6_n2(end));
fprintf(fd,"s16 s6e_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s6_e2));
fprintf(fd,"%d,",s6_e2(1:(end-1)));
fprintf(fd,"%d};\n\n",s6_e2(end));
fprintf(fd,"s16 s15n_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s15_n2));
fprintf(fd,"%d,",s15_n2(1:(end-1)));
fprintf(fd,"%d};\n\n",s15_n2(end));
fprintf(fd,"s16 s15e_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s15_e2));
fprintf(fd,"%d,",s15_e2(1:(end-1)));
fprintf(fd,"%d};\n\n",s15_e2(end));
fprintf(fd,"s16 s25n_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s25_n2));
fprintf(fd,"%d,",s25_n2(1:(end-1)));
fprintf(fd,"%d};\n\n",s25_n2(end));
fprintf(fd,"s16 s25e_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s25_e2));
fprintf(fd,"%d,",s25_e2(1:(end-1)));
fprintf(fd,"%d};\n\n",s25_e2(end));
fprintf(fd,"s16 s50n_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s50_n2));
fprintf(fd,"%d,",s50_n2(1:(end-1)));
fprintf(fd,"%d};\n\n",s50_n2(end));
fprintf(fd,"s16 s50e_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s50_e2));
fprintf(fd,"%d,",s50_e2(1:(end-1)));
fprintf(fd,"%d};\n\n",s50_e2(end));
fprintf(fd,"s16 s75n_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s75_n2));
fprintf(fd,"%d,",s75_n2(1:(end-1)));
fprintf(fd,"%d};\n\n",s75_n2(end));
fprintf(fd,"s16 s75e_kHz_7_5[%d]__attribute__((aligned(16))) = {",length(s75_e2));
fprintf(fd,"%d,",s75_e2(1:(end-1)));
fprintf(fd,"%d};\n\n",s75_e2(end));
fprintf(fd,"s16 s100n_kHz_7_5[%d]__attribute__((aligned(16)))= {",length(s100_n2));
fprintf(fd,"%d,",s100_n2(1:(end-1)));
fprintf(fd,"%d};\n\n",s100_n2(end));
fprintf(fd,"s16 s100e_kHz_7_5[%d]__attribute__((aligned(16)))= {",length(s100_n2));
fprintf(fd,"%d,",s100_e2(1:(end-1)));
fprintf(fd,"%d};\n\n",s100_e2(end));
fclose(fd);
end
function [s_n2, s_e2] = gen_sig(RB)
% 20MHz BW
cp0 = 160;
cp = 144;
cpe = 512;
samplerate = 30.72e6;
ofdm_size = 2048;
len = 15360;
switch(RB)
case 6
ratio = 1/16;
case 15
ratio = 1/8;
case 25
ratio = 1/4;
case 50
ratio = 1/2;
case 75
ratio = 3/4;
case 100
ratio = 1;
otherwise
disp("Wrong Number of RB");
end
cp0 = cp0*ratio;
cp = cp*ratio;
cpe = cpe*ratio;
samplerate = samplerate*ratio;
ofdm_size = ofdm_size*ratio;
len = len*ratio;
s_n0 = floor(32767*exp(-sqrt(-1)*2*pi*(-cp0:ofdm_size-1)*7.5e3/samplerate));
s_n1 = floor(32767*exp(-sqrt(-1)*2*pi*(-cp:ofdm_size-1)*7.5e3/samplerate));
s_n = [s_n0 s_n1 s_n1 s_n1 s_n1 s_n1 s_n1];
s_n2 = zeros(1, 2*len);
s_n2(1:2:end) = real(s_n);
s_n2(2:2:end) = imag(s_n);
s_e = floor(32767*exp(-sqrt(-1)*2*pi*(-cpe:ofdm_size-1)*7.5e3/samplerate));
s_e = [s_e s_e s_e s_e s_e s_e];
s_e2 = zeros(1, 2*len);
s_e2(1:2:end) = real(s_e);
s_e2(2:2:end) = imag(s_e);
end