mirrors/gnss-sdr
1
0
Fork 0
mirror of https://github.com/gnss-sdr/gnss-sdr synced 2024-12-15 20:50:33 +00:00
Code Issues Releases Wiki Activity

Fix assignment of a channel to a given satellite with ChannelN.satellite=PRN

Browse Source
This commit is contained in:
Carles Fernandez 2018-04-20 12:50:32 +02:00
parent 4db5f9165f
commit 514fde256a
No known key found for this signature in database
GPG Key ID: 4C583C52B0C3877D
1 changed files with 81 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

134
src/core/receiver/gnss_flowgraph.cc
View File

@ -9,7 +9,7 @@
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2015 (see AUTHORS file for a list of contributors)
* Copyright (C) 2010-2018 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
@ -61,6 +61,8 @@ GNSSFlowgraph::GNSSFlowgraph(std::shared_ptr<ConfigurationInterface> configurati
GNSSFlowgraph::~GNSSFlowgraph() {}
void GNSSFlowgraph::start()
{
if (running_)
@ -93,10 +95,9 @@ void GNSSFlowgraph::stop()
void GNSSFlowgraph::connect()
{
/* Connects the blocks in the flowgraph
*
* Signal Source > Signal conditioner >> Channels >> Observables >> PVT
*/
// Connects the blocks in the flowgraph
// Signal Source > Signal conditioner >> Channels >> Observables >> PVT
LOG(INFO) << "Connecting flowgraph";
if (connected_)
{
@ -267,7 +268,6 @@ void GNSSFlowgraph::connect()
return;
}
// Signal conditioner (selected_signal_source) >> channels (i) (dependent of their associated SignalSource_ID)
int selected_signal_conditioner_ID;
for (unsigned int i = 0; i < channels_count_; i++)
@ -301,26 +301,46 @@ void GNSSFlowgraph::connect()
top_block_->disconnect_all();
return;
}
}
std::string gnss_signal = channels_.at(i)->get_signal().get_signal_str(); // use channel's implicit signal!
channels_.at(i)->set_signal(search_next_signal(gnss_signal, false));
if (channels_state_[i] == 1)
// Put channels fixed to a given satellite at the beginning of the vector, then the rest
std::vector<unsigned int> vector_of_channels;
for (unsigned int i = 0; i < channels_count_; i++)
{
channels_.at(i)->start_acquisition();
available_GNSS_signals_.pop_front();
LOG(INFO) << "Channel " << i << " assigned to " << channels_.at(i)->get_signal();
LOG(INFO) << "Channel " << i << " connected to observables and ready for acquisition";
unsigned int sat = configuration_->property("Channel" + boost::lexical_cast<std::string>(i) + ".satellite", 0);
if (sat == 0)
{
vector_of_channels.push_back(i);
}
else
{
LOG(INFO) << "Channel " << i << " connected to observables in standby mode";
auto it = vector_of_channels.begin();
it = vector_of_channels.insert(it, i);
}
}
/*
* Connect the observables output of each channel to the PVT block
*/
// Assign satellites to channels in the initialization
for (unsigned int& i : vector_of_channels)
{
std::string gnss_signal = channels_.at(i)->get_signal().get_signal_str(); // use channel's implicit signal
unsigned int sat = configuration_->property("Channel" + boost::lexical_cast<std::string>(i) + ".satellite", 0);
if (sat == 0)
{
channels_.at(i)->set_signal(search_next_signal(gnss_signal, true));
}
else
{
std::string gnss_system;
if ((gnss_signal.compare("1C") == 0) or (gnss_signal.compare("2S") == 0) or (gnss_signal.compare("L5") == 0)) gnss_system = "GPS";
if ((gnss_signal.compare("1B") == 0) or (gnss_signal.compare("5X") == 0)) gnss_system = "Galileo";
if ((gnss_signal.compare("1G") == 0) or (gnss_signal.compare("2G") == 0)) gnss_system = "Glonass";
Gnss_Signal signal_value = Gnss_Signal(Gnss_Satellite(gnss_system, sat), gnss_signal);
available_GNSS_signals_.remove(signal_value);
channels_.at(i)->set_signal(signal_value);
}
}
// Connect the observables output of each channel to the PVT block
try
{
for (unsigned int i = 0; i < channels_count_; i++)
@ -337,6 +357,21 @@ void GNSSFlowgraph::connect()
return;
}
// Activate acquisition in enabled channels
for (unsigned int i = 0; i < channels_count_; i++)
{
LOG(INFO) << "Channel " << i << " assigned to " << channels_.at(i)->get_signal();
if (channels_state_[i] == 1)
{
channels_.at(i)->start_acquisition();
LOG(INFO) << "Channel " << i << " connected to observables and ready for acquisition";
}
else
{
LOG(INFO) << "Channel " << i << " connected to observables in standby mode";
}
}
connected_ = true;
LOG(INFO) << "Flowgraph connected";
top_block_->dump();
@ -374,12 +409,16 @@ bool GNSSFlowgraph::send_telemetry_msg(pmt::pmt_t msg)
void GNSSFlowgraph::apply_action(unsigned int who, unsigned int what)
{
DLOG(INFO) << "Received " << what << " from " << who << ". Number of applied actions = " << applied_actions_;
unsigned int sat = configuration_->property("Channel" + boost::lexical_cast<std::string>(who) + ".satellite", 0);
switch (what)
{
case 0:
DLOG(INFO) << "Channel " << who << " ACQ FAILED satellite " << channels_.at(who)->get_signal().get_satellite() << ", Signal " << channels_.at(who)->get_signal().get_signal_str();
if (sat == 0)
{
available_GNSS_signals_.push_back(channels_.at(who)->get_signal());
channels_.at(who)->set_signal(search_next_signal(channels_.at(who)->get_signal().get_signal_str(), true));
}
DLOG(INFO) << "Channel " << who << " Starting acquisition " << channels_.at(who)->get_signal().get_satellite() << ", Signal " << channels_.at(who)->get_signal().get_signal_str();
channels_.at(who)->start_acquisition();
break;
@ -390,10 +429,14 @@ void GNSSFlowgraph::apply_action(unsigned int who, unsigned int what)
acq_channels_count_--;
for (unsigned int i = 0; i < channels_count_; i++)
{
unsigned int sat_ = configuration_->property("Channel" + boost::lexical_cast<std::string>(i) + ".satellite", 0);
if (!available_GNSS_signals_.empty() && (acq_channels_count_ < max_acq_channels_) && (channels_state_[i] == 0))
{
channels_state_[i] = 1;
if (sat_ == 0)
{
channels_.at(i)->set_signal(search_next_signal(channels_.at(i)->get_signal().get_signal_str(), true));
}
acq_channels_count_++;
DLOG(INFO) << "Channel " << i << " Starting acquisition " << channels_.at(i)->get_signal().get_satellite() << ", Signal " << channels_.at(i)->get_signal().get_signal_str();
channels_.at(i)->start_acquisition();
@ -417,8 +460,11 @@ void GNSSFlowgraph::apply_action(unsigned int who, unsigned int what)
{
channels_state_[who] = 0;
LOG(INFO) << "Channel " << who << " Idle state";
if (sat == 0)
{
available_GNSS_signals_.push_back(channels_.at(who)->get_signal());
}
}
break;
default:
@ -436,7 +482,6 @@ void GNSSFlowgraph::set_configuration(std::shared_ptr<ConfigurationInterface> co
LOG(WARNING) << "Unable to update configuration while flowgraph running";
return;
}
if (connected_)
{
LOG(WARNING) << "Unable to update configuration while flowgraph connected";
@ -541,20 +586,10 @@ void GNSSFlowgraph::init()
void GNSSFlowgraph::set_signals_list()
{
/*
* Sets a sequential list of GNSS satellites
*/
// Set a sequential list of GNSS satellites
std::set<unsigned int>::const_iterator available_gnss_prn_iter;
/*
* \TODO Describe GNSS satellites more nicely, with RINEX notation
* See http://igscb.jpl.nasa.gov/igscb/data/format/rinex301.pdf (page 5)
*/
/*
* Read GNSS-SDR default GNSS system and signal
*/
// Read GNSS systems and signals
unsigned int total_channels = configuration_->property("Channels_1C.count", 0) +
configuration_->property("Channels_1B.count", 0) +
configuration_->property("Channels_1G.count", 0) +
@ -563,11 +598,7 @@ void GNSSFlowgraph::set_signals_list()
configuration_->property("Channels_5X.count", 0) +
configuration_->property("Channels_L5.count", 0);
/*
* Loop to create the list of GNSS Signals
* To add signals from other systems, add another loop 'for'
*/
// Create the lists of GNSS satellites
std::set<unsigned int> available_gps_prn = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28,
29, 30, 31, 32};
@ -689,6 +720,7 @@ void GNSSFlowgraph::set_signals_list()
std::string("L5")));
}
}
if (configuration_->property("Channels_SBAS.count", 0) > 0)
{
/*
@ -704,7 +736,6 @@ void GNSSFlowgraph::set_signals_list()
}
}
if (configuration_->property("Channels_1B.count", 0) > 0)
{
/*
@ -764,39 +795,12 @@ void GNSSFlowgraph::set_signals_list()
std::string("2G")));
}
}
/*
* Ordering the list of signals from configuration file
*/
std::list<Gnss_Signal>::iterator gnss_it = available_GNSS_signals_.begin();
// Pre-assignation if not defined at ChannelX.signal=1C ...? In what order?
for (unsigned int i = 0; i < total_channels; i++)
{
std::string gnss_signal = (configuration_->property("Channel" + boost::lexical_cast<std::string>(i) + ".signal", std::string("1C")));
std::string gnss_system;
if ((gnss_signal.compare("1C") == 0) or (gnss_signal.compare("2S") == 0) or (gnss_signal.compare("L5") == 0)) gnss_system = "GPS";
if ((gnss_signal.compare("1B") == 0) or (gnss_signal.compare("5X") == 0)) gnss_system = "Galileo";
if ((gnss_signal.compare("1G") == 0) or (gnss_signal.compare("2G") == 0)) gnss_system = "Glonass";
unsigned int sat = configuration_->property("Channel" + boost::lexical_cast<std::string>(i) + ".satellite", 0);
LOG(INFO) << "Channel " << i << " system " << gnss_system << ", signal " << gnss_signal << ", sat " << sat;
if (sat == 0) // 0 = not PRN in configuration file
{
gnss_it++;
}
else
{
Gnss_Signal signal_value = Gnss_Signal(Gnss_Satellite(gnss_system, sat), gnss_signal);
available_GNSS_signals_.remove(signal_value);
gnss_it = available_GNSS_signals_.insert(gnss_it, signal_value);
}
}
}
void GNSSFlowgraph::set_channels_state()
{
max_acq_channels_ = (configuration_->property("Channels.in_acquisition", channels_count_));
max_acq_channels_ = configuration_->property("Channels.in_acquisition", channels_count_);
if (max_acq_channels_ > channels_count_)
{
max_acq_channels_ = channels_count_;