[hamradio-commits] [gnss-sdr] 63/126: Improvements to gnss_flowgraph
Carles Fernandez
carles_fernandez-guest at moszumanska.debian.org
Sat Dec 26 18:38:02 UTC 2015
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carles_fernandez-guest pushed a commit to branch next
in repository gnss-sdr.
commit 086118c4aaf268e64c581904fadbd98197b25584
Author: Cillian O'Driscoll <cillian.odriscoll at gmail.com>
Date: Sat Oct 24 09:39:10 2015 +0100
Improvements to gnss_flowgraph
1) Fixed a bug in gnss_signal::compare
The signal string comparison was not correct.
2) Fix for gnss_flowgraph when satellites are specified
3) Better handling of acquisition in flow graph
Now PRNs are alternated amongst channels, so we don't get 'stuck' on a
particular PRN, and we don't miss out on PRNs that are assigned to
channels that come after a channel that is always in the acquisition state.
4) Added SYS.prns to config file.
Now we can specify which PRNs are available in the configuration, rather
than re-compiling. Particularly useful for debugging, or experimenting
with files where you already know which signals are present
---
src/core/receiver/gnss_flowgraph.cc | 73 +++++++++++++++++++++++++++++--
src/core/system_parameters/gnss_signal.cc | 2 +-
2 files changed, 70 insertions(+), 5 deletions(-)
diff --git a/src/core/receiver/gnss_flowgraph.cc b/src/core/receiver/gnss_flowgraph.cc
index 1d1c142..3cdacde 100644
--- a/src/core/receiver/gnss_flowgraph.cc
+++ b/src/core/receiver/gnss_flowgraph.cc
@@ -43,6 +43,8 @@
#include "gnss_block_interface.h"
#include "channel_interface.h"
#include "gnss_block_factory.h"
+#include <boost/tokenizer.hpp>
+#include <algorithm>
#define GNSS_SDR_ARRAY_SIGNAL_CONDITIONER_CHANNELS 8
@@ -313,12 +315,12 @@ void GNSSFlowgraph::connect()
}
channels_.at(i)->set_signal(available_GNSS_signals_.front());
LOG(INFO) << "Channel " << i << " assigned to " << available_GNSS_signals_.front();
- available_GNSS_signals_.pop_front();
channels_.at(i)->start();
if (channels_state_[i] == 1)
{
channels_.at(i)->start_acquisition();
+ available_GNSS_signals_.pop_front();
LOG(INFO) << "Channel " << i << " connected to observables and ready for acquisition";
}
else
@@ -413,13 +415,20 @@ void GNSSFlowgraph::apply_action(unsigned int who, unsigned int what)
LOG(INFO) << "Channel " << who << " ACQ SUCCESS satellite " << channels_.at(who)->get_signal().get_satellite();
channels_state_[who] = 2;
acq_channels_count_--;
- if (acq_channels_count_ < max_acq_channels_)
+ if (!available_GNSS_signals_.empty() && acq_channels_count_ < max_acq_channels_)
{
for (unsigned int i = 0; i < channels_count_; i++)
{
if (channels_state_[i] == 0)
{
channels_state_[i] = 1;
+ while (channels_.at(i)->get_signal().get_signal_str().compare(available_GNSS_signals_.front().get_signal_str()) != 0 )
+ {
+ available_GNSS_signals_.push_back(available_GNSS_signals_.front());
+ available_GNSS_signals_.pop_front();
+ }
+ channels_.at(i)->set_signal(available_GNSS_signals_.front());
+ available_GNSS_signals_.pop_front();
acq_channels_count_++;
channels_.at(i)->start_acquisition();
break;
@@ -442,6 +451,7 @@ void GNSSFlowgraph::apply_action(unsigned int who, unsigned int what)
{
channels_state_[who] = 0;
channels_.at(who)->standby();
+ available_GNSS_signals_.push_back( channels_.at(who)->get_signal() );
}
// for (unsigned int i = 0; i < channels_count_; i++)
@@ -593,7 +603,54 @@ void GNSSFlowgraph::set_signals_list()
11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28,
29, 30, 31, 32, 33, 34, 35, 36};
+ std::string sv_list = configuration_->property("Galileo.prns", std::string("") );
+
+
+ if( sv_list.length() > 0 )
+ {
+ // Reset the available prns:
+ std::set< unsigned int > tmp_set;
+ boost::tokenizer<> tok( sv_list );
+ std::transform( tok.begin(), tok.end(), std::inserter( tmp_set, tmp_set.begin() ),
+ boost::lexical_cast<unsigned int, std::string> );
+
+ if( tmp_set.size() > 0 )
+ {
+ available_galileo_prn = tmp_set;
+ }
+ }
+
+ sv_list = configuration_->property("GPS.prns", std::string("") );
+ if( sv_list.length() > 0 )
+ {
+ // Reset the available prns:
+ std::set< unsigned int > tmp_set;
+ boost::tokenizer<> tok( sv_list );
+ std::transform( tok.begin(), tok.end(), std::inserter( tmp_set, tmp_set.begin() ),
+ boost::lexical_cast<unsigned int, std::string> );
+
+ if( tmp_set.size() > 0 )
+ {
+ available_gps_prn = tmp_set;
+ }
+ }
+
+ sv_list = configuration_->property("SBAS.prns", std::string("") );
+
+ if( sv_list.length() > 0 )
+ {
+ // Reset the available prns:
+ std::set< unsigned int > tmp_set;
+ boost::tokenizer<> tok( sv_list );
+ std::transform( tok.begin(), tok.end(), std::inserter( tmp_set, tmp_set.begin() ),
+ boost::lexical_cast<unsigned int, std::string> );
+
+ if( tmp_set.size() > 0 )
+ {
+ available_sbas_prn = tmp_set;
+ }
+ }
if ((configuration_->property("Channels_1C.count", 0) > 0) or (default_system.find(std::string("GPS")) != std::string::npos) or (default_signal.compare("1C") == 0) or (configuration_->property("Channels_GPS.count", 0) > 0) )
{
@@ -691,8 +748,16 @@ void GNSSFlowgraph::set_signals_list()
}
else
{
- Gnss_Signal signal_value = Gnss_Signal(Gnss_Satellite(gnss_system, gnss_it->get_satellite().get_PRN()), gnss_signal);
- available_GNSS_signals_.remove(signal_value);
+ Gnss_Signal signal_value = Gnss_Signal(Gnss_Satellite(gnss_system, ( sat != 0 ? sat : gnss_it->get_satellite().get_PRN())), gnss_signal);
+ if( gnss_it == available_GNSS_signals_.begin() )
+ {
+ available_GNSS_signals_.remove(signal_value);
+ gnss_it = available_GNSS_signals_.begin();
+ }
+ else
+ {
+ available_GNSS_signals_.remove(signal_value);
+ }
available_GNSS_signals_.insert(gnss_it, signal_value);
}
}
diff --git a/src/core/system_parameters/gnss_signal.cc b/src/core/system_parameters/gnss_signal.cc
index 3230c10..feba0e7 100644
--- a/src/core/system_parameters/gnss_signal.cc
+++ b/src/core/system_parameters/gnss_signal.cc
@@ -73,7 +73,7 @@ bool operator==(const Gnss_Signal &sig1, const Gnss_Signal &sig2)
if (sig1.get_satellite() == sig2.get_satellite())
{
- if (sig1.get_signal_str().compare(sig1.get_signal_str()))
+ if (sig1.get_signal_str().compare(sig1.get_signal_str())==0)
{
equal = true;
}
--
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