Mirror/aicodix___code
1
0
Fork 0
mirror of https://github.com/aicodix/code.git synced 2026-04-28 09:43:11 +00:00
Code Issues Projects Releases Packages Wiki Activity

added DVB T2 table B.7

Browse source
This commit is contained in:
Ahmet Inan 2018-12-13 12:30:41 +01:00
commit 5c77e514ae
1 changed files with 71 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

73
tests/ldpc_regression_test.cc
View file

@ -126,10 +126,79 @@ struct DVB_T2_TABLE_A1
}; };
}; };
struct DVB_T2_TABLE_B7
{
static const int M = 360;
static const int N = 16200;
static const int K = 13320;
static const int LINKS_MIN_CN = 15;
static const int LINKS_MAX_CN = 19;
static const int LINKS_TOTAL = 49319;
static const int DEG_MAX = 13;
static constexpr int DEG[] = {
13, 3, 0
};
static constexpr int LEN[] = {
1, 36, 0
};
static constexpr int POS[] = {
3, 2409, 499, 1481, 908, 559, 716, 1270, 333, 2508, 2264, 1702, 2805,
4, 2447, 1926,
5, 414, 1224,
6, 2114, 842,
7, 212, 573,
0, 2383, 2112,
1, 2286, 2348,
2, 545, 819,
3, 1264, 143,
4, 1701, 2258,
5, 964, 166,
6, 114, 2413,
7, 2243, 81,
0, 1245, 1581,
1, 775, 169,
2, 1696, 1104,
3, 1914, 2831,
4, 532, 1450,
5, 91, 974,
6, 497, 2228,
7, 2326, 1579,
0, 2482, 256,
1, 1117, 1261,
2, 1257, 1658,
3, 1478, 1225,
4, 2511, 980,
5, 2320, 2675,
6, 435, 1278,
7, 228, 503,
0, 1885, 2369,
1, 57, 483,
2, 838, 1050,
3, 1231, 1990,
4, 1738, 68,
5, 2392, 951,
6, 163, 645,
7, 2644, 1704,
};
};
constexpr int DVB_T2_TABLE_A1::DEG[]; constexpr int DVB_T2_TABLE_A1::DEG[];
constexpr int DVB_T2_TABLE_A1::LEN[]; constexpr int DVB_T2_TABLE_A1::LEN[];
constexpr int DVB_T2_TABLE_A1::POS[]; constexpr int DVB_T2_TABLE_A1::POS[];
constexpr int DVB_T2_TABLE_B7::DEG[];
constexpr int DVB_T2_TABLE_B7::LEN[];
constexpr int DVB_T2_TABLE_B7::POS[];
#if 0
typedef DVB_T2_TABLE_A1 TABLE; typedef DVB_T2_TABLE_A1 TABLE;
static const float QEF_SNR = -1.8;
static const int BCH_T = 12;
#else
typedef DVB_T2_TABLE_B7 TABLE;
static const float QEF_SNR = 2.5;
static const int BCH_T = 12;
#endif
int main() int main()
{ {
@ -207,7 +276,7 @@ int main()
decoder_errors += code[i] * orig[i] <= 0 && orig[i] * noisy[i] > 0; decoder_errors += code[i] * orig[i] <= 0 && orig[i] * noisy[i] > 0;
float bit_error_rate = (float)uncorrected_errors / (float)(CODE_LEN); float bit_error_rate = (float)uncorrected_errors / (float)(CODE_LEN);
if (!uncorrected_errors) if (uncorrected_errors <= BCH_T)
min_SNR = std::min(min_SNR, SNR); min_SNR = std::min(min_SNR, SNR);
min_mbs = std::min(min_mbs, mbs); min_mbs = std::min(min_mbs, mbs);
max_mbs = std::max(max_mbs, mbs); max_mbs = std::max(max_mbs, mbs);
@ -237,7 +306,7 @@ int main()
delete[] symb; delete[] symb;
std::cerr << "QEF at: " << min_SNR << " SNR, speed min: " << min_mbs << " Mb/s and speed max: " << max_mbs << " Mb/s." << std::endl; std::cerr << "QEF at: " << min_SNR << " SNR, speed min: " << min_mbs << " Mb/s and speed max: " << max_mbs << " Mb/s." << std::endl;
assert(min_SNR < -1.8); assert(min_SNR < QEF_SNR);
std::cerr << "Low-density parity-check code regression test passed!" << std::endl; std::cerr << "Low-density parity-check code regression test passed!" << std::endl;
return 0; return 0;
} }