Commit ad402982 authored by Thomas Schlichter's avatar Thomas Schlichter

[ulschsim] Add support fo perfect channel (no noise)

Also print the uncoded error bits
parent aadc2825
......@@ -483,7 +483,7 @@ int main(int argc, char **argv) {
double *modulated_input = malloc16(sizeof(double) * 16 * 68 * 384);
short *channel_output_fixed = malloc16(sizeof(short) * 16 * 68 * 384);
short *channel_output_uncoded = malloc16(sizeof(unsigned short) * 16 * 68 * 384);
double errors_bit_uncoded = 0;
unsigned int errors_bit_uncoded = 0;
unsigned char *estimated_output;
unsigned char *estimated_output_bit;
unsigned char *test_input_bit;
......@@ -543,9 +543,13 @@ int main(int argc, char **argv) {
//SNR =10;
SNR_lin = pow(10, SNR / 10.0);
sigma = 1.0 / sqrt(2 * SNR_lin);
#if 1
channel_output_fixed[i] = (short) quantize(sigma / 4.0 / 4.0,
modulated_input[i] + sigma * gaussdouble(0.0, 1.0),
qbits);
#else
channel_output_fixed[i] = (short) quantize(0.01, modulated_input[i], qbits);
#endif
//channel_output_fixed[i] = (char)quantize8bit(sigma/4.0,(2.0*modulated_input[i]) - 1.0 + sigma*gaussdouble(0.0,1.0));
//printf("llr[%d]=%d\n",i,channel_output_fixed[i]);
//printf("channel_output_fixed[%d]: %d\n",i,channel_output_fixed[i]);
......@@ -565,7 +569,7 @@ int main(int argc, char **argv) {
}
//if (errors_bit_uncoded>10)
//printf("errors bits uncoded %f\n", errors_bit_uncoded);
printf("errors bits uncoded %u\n", errors_bit_uncoded);
#ifdef DEBUG_CODER
printf("\n");
exit(-1);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment