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E5a Dll/Pll tracking + tracking test + Secondary code delay generator

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+ PCPS acquisition of 1ms code 1ms filled with zeros (to avoid sec code
ambiguity)
This commit is contained in:
marc-sales
2014-06-20 18:23:44 +02:00
parent dbad4b5742
commit 4b5526ec7e
16 changed files with 1583 additions and 149 deletions
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4
src/algorithms/signal_generator/adapters/signal_generator.cc
View File

@@ -66,6 +66,7 @@ SignalGenerator::SignalGenerator(ConfigurationInterface* configuration,
std::vector<float> CN0_dB;
std::vector<float> doppler_Hz;
std::vector<unsigned int> delay_chips;
std::vector<unsigned int> delay_sec;
for (unsigned int sat_idx = 0; sat_idx < num_satellites; sat_idx++)
{
@@ -76,6 +77,7 @@ SignalGenerator::SignalGenerator(ConfigurationInterface* configuration,
CN0_dB.push_back(configuration->property("SignalSource.CN0_dB_" + sat, 10));
doppler_Hz.push_back(configuration->property("SignalSource.doppler_Hz_" + sat, 0));
delay_chips.push_back(configuration->property("SignalSource.delay_chips_" + sat, 0));
delay_sec.push_back(configuration->property("SignalSource.delay_sec_" + sat, 0));
}
// If Galileo signal is present -> vector duration = 100 ms (25 * 4 ms)
@@ -108,7 +110,7 @@ SignalGenerator::SignalGenerator(ConfigurationInterface* configuration,
{
item_size_ = sizeof(gr_complex);
DLOG(INFO) << "Item size " << item_size_;
gen_source_ = signal_make_generator_c(signal1, system, PRN, CN0_dB, doppler_Hz, delay_chips,
gen_source_ = signal_make_generator_c(signal1, system, PRN, CN0_dB, doppler_Hz, delay_chips, delay_sec,
data_flag, noise_flag, fs_in, vector_length, BW_BB);
vector_to_stream_ = gr::blocks::vector_to_stream::make(item_size_, vector_length);

29
src/algorithms/signal_generator/gnuradio_blocks/signal_generator_c.cc
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@@ -45,10 +45,10 @@
signal_generator_c_sptr
signal_make_generator_c (std::vector<std::string> signal1, std::vector<std::string> system, const std::vector<unsigned int> &PRN,
const std::vector<float> &CN0_dB, const std::vector<float> &doppler_Hz,
const std::vector<unsigned int> &delay_chips, bool data_flag, bool noise_flag,
const std::vector<unsigned int> &delay_chips, const std::vector<unsigned int> &delay_sec,bool data_flag, bool noise_flag,
unsigned int fs_in, unsigned int vector_length, float BW_BB)
{
return gnuradio::get_initial_sptr(new signal_generator_c(signal1, system, PRN, CN0_dB, doppler_Hz, delay_chips,
return gnuradio::get_initial_sptr(new signal_generator_c(signal1, system, PRN, CN0_dB, doppler_Hz, delay_chips,delay_sec,
data_flag, noise_flag, fs_in, vector_length, BW_BB));
}
@@ -57,7 +57,7 @@ signal_make_generator_c (std::vector<std::string> signal1, std::vector<std::stri
*/
signal_generator_c::signal_generator_c (std::vector<std::string> signal1, std::vector<std::string> system, const std::vector<unsigned int> &PRN,
const std::vector<float> &CN0_dB, const std::vector<float> &doppler_Hz,
const std::vector<unsigned int> &delay_chips, bool data_flag, bool noise_flag,
const std::vector<unsigned int> &delay_chips,const std::vector<unsigned int> &delay_sec ,bool data_flag, bool noise_flag,
unsigned int fs_in, unsigned int vector_length, float BW_BB) :
gr::block ("signal_gen_cc", gr::io_signature::make(0, 0, sizeof(gr_complex)),
@@ -68,6 +68,7 @@ signal_generator_c::signal_generator_c (std::vector<std::string> signal1, std::v
CN0_dB_(CN0_dB),
doppler_Hz_(doppler_Hz),
delay_chips_(delay_chips),
delay_sec_(delay_sec),
data_flag_(data_flag),
noise_flag_(noise_flag),
fs_in_(fs_in),
@@ -98,6 +99,9 @@ void signal_generator_c::init()
data_modulation_.push_back((Galileo_E5a_I_SECONDARY_CODE.at(0)=='0' ? 1 : -1));
pilot_modulation_.push_back((Galileo_E5a_Q_SECONDARY_CODE[PRN_[sat]].at(0)=='0' ? 1 : -1));
std::cout << "data bit init" << current_data_bits_[sat] << std::endl;
std::cout << "data bit init" << current_data_bit_int_[sat] << std::endl;
if (system_[sat] == "G")
{
@@ -207,6 +211,7 @@ void signal_generator_c::generate_codes()
galileo_e5_a_code_gen_complex_sampled(sampled_code_data_[sat] , signal, PRN_[sat], fs_in_,
(int)Galileo_E5a_CODE_LENGTH_CHIPS - delay_chips_[sat],false);
std::cout << "PRN "<< PRN_[sat] << " first two bytes "<< sampled_code_data_[sat][0] << sampled_code_data_[sat][1] << sampled_code_data_[sat][2] << sampled_code_data_[sat][3] << sampled_code_data_[sat][4] << sampled_code_data_[sat][5] << sampled_code_data_[sat][6] << sampled_code_data_[sat][7] << std::endl;
//// std::ofstream myfile;
// //myfile.open ("example_sink_gencode.dat");
// std::ofstream myfile("example_sink_gencode.bin",std::ios_base::binary);
@@ -314,7 +319,7 @@ gr_vector_void_star &output_items)
gr_complex *out = (gr_complex *) output_items[0];
work_counter_++;
std::cout<<"work counter = "<<work_counter_<<std::endl;
//std::cout<<"work counter = "<<work_counter_<<std::endl;
unsigned int out_idx = 0;
unsigned int i = 0;
@@ -383,13 +388,23 @@ gr_vector_void_star &output_items)
* complex_phase_[out_idx];
out_idx++;
}
if (ms_counter_[sat]%data_bit_duration_ms_[sat] == 0 && data_flag_)
{
// New random data bit
current_data_bit_int_[sat] = (rand()%2) == 0 ? 1 : -1;
data_modulation_[sat] = current_data_bit_int_[sat] * (Galileo_E5a_I_SECONDARY_CODE.at(ms_counter_[sat]%20)=='0' ? 1 : -1);
pilot_modulation_[sat] = (Galileo_E5a_Q_SECONDARY_CODE[PRN_[sat]].at(ms_counter_[sat]%100)=='0' ? 1 : -1);
}
data_modulation_[sat] = current_data_bit_int_[sat] * (Galileo_E5a_I_SECONDARY_CODE.at((ms_counter_[sat]+delay_sec_[sat])%20)=='0' ? 1 : -1);
pilot_modulation_[sat] = (Galileo_E5a_Q_SECONDARY_CODE[PRN_[sat]-1].at((ms_counter_[sat]+delay_sec_[sat])%100)=='0' ? 1 : -1);
// if (work_counter_==1)
// {
std::cout << "ms " << ms_counter_[sat] << " pilot mod " << pilot_modulation_[sat] << " data bit " << current_data_bit_int_[sat] << " data mod " << data_modulation_[sat] << " sat " << sat << " PRN" << PRN_[sat];
std::cout << " delay_sec " << delay_sec_[sat] << std::endl;
//std::cout << "code 1st 2 byte " << out[0] << out[1] << out[2] << out[3] << out[4] << out[5] << out[6] << out[7] << std::endl;
// }
ms_counter_[sat] = ms_counter_[sat] + (int)round(1e3*GALILEO_E5a_CODE_PERIOD);
for (k = delay_samples; k < samples_per_code_[sat]; k++)
{
out[out_idx] += (gr_complex(sampled_code_data_[sat][out_idx].real()*data_modulation_[sat] ,
@@ -398,7 +413,7 @@ gr_vector_void_star &output_items)
out_idx++;
}
ms_counter_[sat] = ms_counter_[sat] + (int)round(1e3*GALILEO_E5a_CODE_PERIOD);
}
else

7
src/algorithms/signal_generator/gnuradio_blocks/signal_generator_c.h
View File

@@ -167,7 +167,7 @@ typedef boost::shared_ptr<signal_generator_c> signal_generator_c_sptr;
signal_generator_c_sptr
signal_make_generator_c (std::vector<std::string> signal1, std::vector<std::string> system, const std::vector<unsigned int> &PRN,
const std::vector<float> &CN0_dB, const std::vector<float> &doppler_Hz,
const std::vector<unsigned int> &delay_chips, bool data_flag, bool noise_flag,
const std::vector<unsigned int> &delay_chips,const std::vector<unsigned int> &delay_sec, bool data_flag, bool noise_flag,
unsigned int fs_in, unsigned int vector_length, float BW_BB);
/*!
@@ -186,12 +186,12 @@ private:
friend signal_generator_c_sptr
signal_make_generator_c (std::vector<std::string> signal1, std::vector<std::string> system, const std::vector<unsigned int> &PRN,
const std::vector<float> &CN0_dB, const std::vector<float> &doppler_Hz,
const std::vector<unsigned int> &delay_chips, bool data_flag, bool noise_flag,
const std::vector<unsigned int> &delay_chips,const std::vector<unsigned int> &delay_sec, bool data_flag, bool noise_flag,
unsigned int fs_in, unsigned int vector_length, float BW_BB);
signal_generator_c (std::vector<std::string> signal1, std::vector<std::string> system, const std::vector<unsigned int> &PRN,
const std::vector<float> &CN0_dB, const std::vector<float> &doppler_Hz,
const std::vector<unsigned int> &delay_chips, bool data_flag, bool noise_flag,
const std::vector<unsigned int> &delay_chips,const std::vector<unsigned int> &delay_sec, bool data_flag, bool noise_flag,
unsigned int fs_in, unsigned int vector_length, float BW_BB);
void init();
@@ -203,6 +203,7 @@ private:
std::vector<float> CN0_dB_;
std::vector<float> doppler_Hz_;
std::vector<unsigned int> delay_chips_;
std::vector<unsigned int> delay_sec_;
bool data_flag_;
bool noise_flag_;
unsigned int fs_in_;