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- Major changes:

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- The executable file and the default configuration file is now changed from "./install/mercurio" and "./conf/mercurio.conf" to "./install/gnss-sdr" and "./conf/gnss-sdr.conf", respectively.
        - Configuration file structure changed to define in a single entry the internal sampling frequency (after the signal conditioner). NOTICE that this change affects the all the adapters (acquisition, tracking, telemetry_decoder, observables, and PVT). All the adapters are now modified to work with this feature.
        - Moved several in-line GPS L1 CA parameters (a.k.a magic numbers..) to ./src/core/system_parameters/GPS_L1_CA.h definition file.
        - Tracking blocks now uses DOUBLE values in their outputs.
        - Observables and PVT now are separated. PVT and their associated libraries are moved to ./src/algorithms/PVT
        - Temporarily disabled the RINEX output (I am working on that!)
        - GNSS-SDR screen output now gives extended debug information of the receiver status and events. In the future, this output will be redirected to a log file.

- Bug fixes:
        - FILE_SIGNAL_SOURCE now works correctly when the user configures GNSS-SDR to process the entire file.
        - GPS_L1_CA_DLL_PLL now computes correctly the PRN start values.
        - GPS_L1_CA_DLL_FLL_PLL now computes correctly the PRN start values.
        - Several modifications in GPS_L1_CA_Telemetry_Decoder, GPS_L1_CA_Observables, and GPS_L1_CA_PVT modules to fix the GPS position computation.

- New features
        - Tracking blocks perform a signal integrity check against NaN outliers before the correlation process.
        - Tracking and PVT binary dump options are now documented and we provide MATLAB libraries and sample files to read it. Available in ./utils/matlab" and "./utils/matlab/libs"
        - Observables output rate can be configured. This option enables the GPS L1 CA PVT computation at a maximum rate of 1ms.
        - GPS_L1_CA_PVT now can perform a moving average Latitude, Longitude, and Altitude output for each of the Observables output. It is configurable using the configuration file.
        - Added Google Earth compatible Keyhole Markup Language (KML) output writer class (./src/algorithms/PVT/libs/kml_printer.h and ./src/algorithms/PVT/libs/kml_printer.cc ). You can see the receiver position directly using Google Earth.
        - We provide a master configuration file which includes an in-line documentation with all the new (and old) options. It can be found in ./conf/master.conf

git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@84 64b25241-fba3-4117-9849-534c7e92360d
This commit is contained in:
Javier Arribas
2011-12-07 17:59:34 +00:00
parent 57f7a128a5
commit 69b8ac00dc
102 changed files with 4756 additions and 914 deletions
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30
src/algorithms/signal_source/adapters/file_signal_source.cc
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@@ -38,6 +38,8 @@
#include <string>
#include <iostream>
#include <fstream>
#include <glog/log_severity.h>
#include <glog/logging.h>
@@ -93,6 +95,34 @@ FileSignalSource::FileSignalSource(ConfigurationInterface* configuration,
= gr_make_file_source(item_size_, filename_.c_str(), repeat_);
DLOG(INFO) << "file_source(" << file_source_->unique_id() << ")";
if (samples_==0)
{
/*!
* BUG workaround: The GNURadio file source does not stop the receiver after reaching the End of File.
* A possible solution is to compute the file lenght in samples using file size, excluding the last 100 milliseconds, and enable always the
* valve block
*/
std::ifstream file (filename_.c_str(), std::ios::in|std::ios::binary|std::ios::ate);
std::ifstream::pos_type size;
if (file.is_open())
{
size =file.tellg();
}else{
std::cout<<"file_signal_source: Unable to open the samples file "<<filename_.c_str()<<"\r\n";
LOG_AT_LEVEL(WARNING)<<"file_signal_source: Unable to open the samples file "<<filename_.c_str();
}
std::cout<<std::setprecision(16);
std::cout<<"Processing file "<<filename_<<" containing "<<(double)size<<" [bytes] \r\n";
if (size>0)
{
samples_=floor((double)size/(double)item_size())-ceil(0.1*(double)sampling_frequency_); //process all the samples available in the file excluding the last 100 ms
}
}
double signal_duration_s;
signal_duration_s=(double)samples_*(1/(double)sampling_frequency_);
DLOG(INFO)<<"Total samples to be processed="<<samples_<<" GNSS signal duration= "<<signal_duration_s<<" [s]";
std::cout<<"GNSS signal recorded time to be processed: "<<signal_duration_s<<" [s]\r\n";
// if samples != 0 then enable a flow valve to stop the process after n samples
if (samples_ != 0)
{