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Implement processing of BeiDou PRN34..PRN63

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Signed-off-by: Vlad P <vladisslav2011@gmail.com>
This commit is contained in:
Vlad P 2022-07-14 12:45:54 +03:00
parent 9ebf0a26f8
commit bcad6db988
3 changed files with 8 additions and 10 deletions
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14
src/algorithms/libs/beidou_b1i_signal_replica.cc
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@ -26,11 +26,9 @@ const auto AUX_CEIL = [](float x) { return static_cast<int32_t>(static_cast<int6
void beidou_b1i_code_gen_int(own::span<int32_t> dest, int32_t prn, uint32_t chip_shift)
{
constexpr uint32_t code_length = 2046;
const std::array<int32_t, 33> delays = {712 /*PRN1*/, 1581, 1414, 1550, 581, 771, 1311, 1043, 1549, 359, 710, 1579, 1548, 1103, 579, 769, 358, 709, 1411, 1547,
1102, 578, 357, 1577, 1410, 1546, 1101, 707, 1576, 1409, 1545, 354 /*PRN32*/,
705};
const std::array<int32_t, 37> phase1 = {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 std::array<int32_t, 37> phase2 = {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};
const std::array<int32_t, 63> phase1 = {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, 2, 3, 3, 3, 3, 3, 4, 4, 5, 5, 5, 5, 6, 8, 9, 9, 3, 5, 7, 4, 4, 5, 5, 5, 5, 6};
const std::array<int32_t, 63> phase2 = {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, 7, 4, 6, 8, 10, 11, 5, 9, 6, 8, 10, 11, 9, 9, 10, 11, 7, 7, 9, 5, 9, 6, 8, 10, 11, 9};
const std::array<int32_t, 63> phase3 = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3};
std::bitset<code_length> G1{};
std::bitset<code_length> G2{};
@ -50,7 +48,7 @@ void beidou_b1i_code_gen_int(own::span<int32_t> dest, int32_t prn, uint32_t chip
prn_idx = prn - 1;
// A simple error check
if ((prn_idx < 0) || (prn_idx > 32))
if ((prn_idx < 0) || (prn_idx > 62))
{
return;
}
@ -59,7 +57,7 @@ void beidou_b1i_code_gen_int(own::span<int32_t> dest, int32_t prn, uint32_t chip
for (lcv = 0; lcv < code_length; lcv++)
{
G1[lcv] = G1_register[0];
G2[lcv] = G2_register[-(phase1[prn_idx] - 11)] xor G2_register[-(phase2[prn_idx] - 11)];
G2[lcv] = G2_register[-(phase1[prn_idx] - 11)] xor G2_register[-(phase2[prn_idx] - 11)] xor (phase3[prn_idx] ? G2_register[-(phase3[prn_idx] - 11)] : 0);
feedback1 = G1_register[0] xor G1_register[1] xor G1_register[2] xor G1_register[3] xor G1_register[4] xor G1_register[10];
feedback2 = G2_register[0] xor G2_register[2] xor G2_register[3] xor G2_register[6] xor G2_register[7] xor G2_register[8] xor G2_register[9] xor G2_register[10];
@ -75,7 +73,7 @@ void beidou_b1i_code_gen_int(own::span<int32_t> dest, int32_t prn, uint32_t chip
}
// Set the delay
delay = code_length - delays[prn_idx] * 0; // *********************************
delay = code_length; //**********************************
delay += chip_shift;
delay %= code_length;

2
src/algorithms/libs/rtklib/rtklib.h
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@ -202,7 +202,7 @@ const int NSYSQZS = 0;
#define ENABDS
#ifdef ENABDS
const int MINPRNBDS = 1; //!< min satellite sat number of BeiDou
const int MAXPRNBDS = 37; //!< max satellite sat number of BeiDou
const int MAXPRNBDS = 63; //!< max satellite sat number of BeiDou
const int NSATBDS = (MAXPRNBDS - MINPRNBDS + 1); //!< number of BeiDou satellites
const int NSYSBDS = 1;
#else

2
src/core/system_parameters/beidou_dnav_ephemeris.cc
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@ -22,7 +22,7 @@ Beidou_Dnav_Ephemeris::Beidou_Dnav_Ephemeris()
{
auto gnss_sat = Gnss_Satellite();
const std::string _system("Beidou");
for (unsigned int i = 1; i < 36; i++)
for (unsigned int i = 1; i < 64; i++)
{
satelliteBlock[i] = gnss_sat.what_block(_system, i);
}