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corrected beidou code generation

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This commit is contained in:
Sergi Segura 2018-07-06 14:58:32 +02:00
parent bf8ffe63cf
commit 3b9e34edea
1 changed files with 3 additions and 9 deletions
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10
src/algorithms/libs/beidou_b1I_signal_processing.cc
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@ -53,15 +53,9 @@ std::cout << "MY SATELLITE " << _prn << "!" << std::endl;
705};
const signed int phase1[37] = {1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 8, 8, 8, 9, 9, 10};
const signed int phase2[37] = {3, 4, 5, 6, 8, 9, 10, 11, 7, 4, 5, 6, 8, 9, 10, 11, 5, 6, 8, 9, 10, 11, 6, 8, 9, 10, 11, 8, 9, 10, 11, 9, 10, 11, 10, 11, 11};
// compute delay array index for given PRN number
// if (120 <= _prn && _prn <= 138)
// {
// prn_idx = _prn - 88; // SBAS PRNs are at array indices 31 to 50 (offset: -120+33-1 =-88)
// }
// else
// {
prn_idx = _prn - 1;
// }
/* A simple error check */
if ((prn_idx < 0) || (prn_idx > 51))
@ -77,7 +71,7 @@ std::cout << "MY SATELLITE " << _prn << "!" << std::endl;
for (lcv = 0; lcv < _code_length; lcv++)
{
G1[lcv] = G1_register[0];
G2[lcv] = G2_register[0];//G2_register[phase1[prn_idx]] ^ G2_register[phase2[prn_idx]];
G2[lcv] = G2_register[-(phase1[prn_idx] - 11) ] ^ G2_register[-(phase2[prn_idx]) - 11];
feedback1 = (G1_register[0] + G1_register[1] + G1_register[2] + G1_register[3] + G1_register[4] + G1_register[10]) & 0x1;
feedback2 = (G2_register[0] + G2_register[2] + G2_register[3] + G2_register[6] + G2_register[7] + G2_register[8] + G2_register[9] + G2_register[10]) & 0x1;