Merge branch 'next' of https://github.com/carlesfernandez/gnss-sdr into next

src/algorithms/acquisition/adapters/galileo_e1_pcps_8ms_ambiguous_acquisition.h

@@ -32,12 +32,11 @@
 #ifndef GNSS_SDR_GALILEO_E1_PCPS_8MS_AMBIGUOUS_ACQUISITION_H_
 #define GNSS_SDR_GALILEO_E1_PCPS_8MS_AMBIGUOUS_ACQUISITION_H_
 
-#include <string>
-#include <gnuradio/blocks/stream_to_vector.h>
 #include "gnss_synchro.h"
 #include "acquisition_interface.h"
 #include "galileo_pcps_8ms_acquisition_cc.h"
-
+#include <gnuradio/blocks/stream_to_vector.h>
+#include <string>
 
 class ConfigurationInterface;
 
@@ -123,6 +122,7 @@ public:
      * \brief Restart acquisition algorithm
      */
     void reset() override;
+    void set_state(int state __attribute__((unused))) override{};
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/galileo_e1_pcps_ambiguous_acquisition.h

@@ -130,7 +130,7 @@ public:
     /*!
      * \brief If state = 1, it forces the block to start acquiring from the first sample
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/galileo_e1_pcps_cccwsr_ambiguous_acquisition.h

@@ -32,12 +32,11 @@
 #ifndef GNSS_SDR_GALILEO_E1_PCPS_CCCWSR_AMBIGUOUS_ACQUISITION_H_
 #define GNSS_SDR_GALILEO_E1_PCPS_CCCWSR_AMBIGUOUS_ACQUISITION_H_
 
-#include <string>
-#include <gnuradio/blocks/stream_to_vector.h>
 #include "gnss_synchro.h"
 #include "acquisition_interface.h"
 #include "pcps_cccwsr_acquisition_cc.h"
-
+#include <gnuradio/blocks/stream_to_vector.h>
+#include <string>
 
 class ConfigurationInterface;
 
@@ -124,7 +123,7 @@ public:
     /*!
      * \brief If state = 1, it forces the block to start acquiring from the first sample
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/galileo_e1_pcps_quicksync_ambiguous_acquisition.h

@@ -32,11 +32,11 @@
 #ifndef GNSS_SDR_GALILEO_E1_PCPS_QUICKSYNC_AMBIGUOUS_ACQUISITION_H_
 #define GNSS_SDR_GALILEO_E1_PCPS_QUICKSYNC_AMBIGUOUS_ACQUISITION_H_
 
-#include <string>
-#include <gnuradio/blocks/stream_to_vector.h>
 #include "gnss_synchro.h"
 #include "acquisition_interface.h"
 #include "pcps_quicksync_acquisition_cc.h"
+#include <gnuradio/blocks/stream_to_vector.h>
+#include <string>
 
 
 class ConfigurationInterface;
@@ -127,7 +127,7 @@ public:
     /*!
      * \brief If state = 1, it forces the block to start acquiring from the first sample
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/galileo_e1_pcps_tong_ambiguous_acquisition.h

@@ -32,12 +32,11 @@
 #ifndef GNSS_SDR_GALILEO_E1_PCPS_TONG_AMBIGUOUS_ACQUISITION_H_
 #define GNSS_SDR_GALILEO_E1_PCPS_TONG_AMBIGUOUS_ACQUISITION_H_
 
-#include <string>
-#include <gnuradio/blocks/stream_to_vector.h>
 #include "gnss_synchro.h"
 #include "acquisition_interface.h"
 #include "pcps_tong_acquisition_cc.h"
-
+#include <gnuradio/blocks/stream_to_vector.h>
+#include <string>
 
 class ConfigurationInterface;
 
@@ -127,7 +126,7 @@ public:
     /*!
      * \brief If state = 1, it forces the block to start acquiring from the first sample
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/galileo_e5a_noncoherent_iq_acquisition_caf.h

@@ -38,10 +38,10 @@
 #ifndef GALILEO_E5A_NONCOHERENT_IQ_ACQUISITION_CAF_H_
 #define GALILEO_E5A_NONCOHERENT_IQ_ACQUISITION_CAF_H_
 
-#include <string>
 #include "gnss_synchro.h"
 #include "acquisition_interface.h"
 #include "galileo_e5a_noncoherent_iq_acquisition_caf_cc.h"
+#include <string>
 
 class ConfigurationInterface;
 
@@ -129,7 +129,7 @@ public:
      * first available sample.
      * \param state - int=1 forces start of acquisition
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/galileo_e5a_pcps_acquisition.h

@@ -121,7 +121,7 @@ public:
      * first available sample.
      * \param state - int=1 forces start of acquisition
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     float calculate_threshold(float pfa);

src/algorithms/acquisition/adapters/glonass_l1_ca_pcps_acquisition.h

@@ -130,7 +130,7 @@ public:
     /*!
      * \brief If state = 1, it forces the block to start acquiring from the first sample
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/glonass_l2_ca_pcps_acquisition.h

@@ -129,7 +129,7 @@ public:
     /*!
      * \brief If state = 1, it forces the block to start acquiring from the first sample
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_acquisition.h

@@ -134,7 +134,7 @@ public:
     /*!
      * \brief If state = 1, it forces the block to start acquiring from the first sample
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_acquisition_fine_doppler.cc

@@ -33,12 +33,12 @@
  */
 
 #include "gps_l1_ca_pcps_acquisition_fine_doppler.h"
-#include <glog/logging.h>
 #include "gps_sdr_signal_processing.h"
 #include "GPS_L1_CA.h"
 #include "configuration_interface.h"
 #include "gnss_sdr_flags.h"
 #include "acq_conf.h"
+#include <glog/logging.h>
 
 using google::LogMessage;
 
@@ -168,6 +168,12 @@ void GpsL1CaPcpsAcquisitionFineDoppler::reset()
 }
 
 
+void GpsL1CaPcpsAcquisitionFineDoppler::set_state(int state)
+{
+    acquisition_cc_->set_state(state);
+}
+
+
 void GpsL1CaPcpsAcquisitionFineDoppler::connect(boost::shared_ptr<gr::top_block> top_block)
 {
     if (top_block)

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_acquisition_fine_doppler.h

@@ -34,11 +34,10 @@
 #ifndef GNSS_SDR_GPS_L1_CA_PCPS_ACQUISITION_FINE_DOPPLER_H_
 #define GNSS_SDR_GPS_L1_CA_PCPS_ACQUISITION_FINE_DOPPLER_H_
 
-#include <string>
 #include "gnss_synchro.h"
 #include "acquisition_interface.h"
 #include "pcps_acquisition_fine_doppler_cc.h"
-
+#include <string>
 
 class ConfigurationInterface;
 
@@ -122,6 +121,11 @@ public:
      */
     void reset() override;
 
+    /*!
+     * \brief If state = 1, it forces the block to start acquiring from the first sample
+     */
+    void set_state(int state) override;
+
 private:
     pcps_acquisition_fine_doppler_cc_sptr acquisition_cc_;
     size_t item_size_;

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_acquisition_fpga.h

@@ -132,7 +132,7 @@ public:
     /*!
      * \brief If state = 1, it forces the block to start acquiring from the first sample
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_assisted_acquisition.h

@@ -34,11 +34,10 @@
 #ifndef GNSS_SDR_GPS_L1_CA_PCPS_ASSISTED_ACQUISITION_H_
 #define GNSS_SDR_GPS_L1_CA_PCPS_ASSISTED_ACQUISITION_H_
 
-#include <string>
 #include "gnss_synchro.h"
 #include "acquisition_interface.h"
 #include "pcps_assisted_acquisition_cc.h"
-
+#include <string>
 
 class ConfigurationInterface;
 
@@ -121,6 +120,7 @@ public:
      * \brief Restart acquisition algorithm
      */
     void reset() override;
+    void set_state(int state __attribute__((unused))) override{};
 
 private:
     pcps_assisted_acquisition_cc_sptr acquisition_cc_;

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_opencl_acquisition.h

@@ -32,12 +32,11 @@
 #ifndef GNSS_SDR_GPS_L1_CA_PCPS_OPENCL_ACQUISITION_H_
 #define GNSS_SDR_GPS_L1_CA_PCPS_OPENCL_ACQUISITION_H_
 
-#include <string>
-#include <gnuradio/blocks/stream_to_vector.h>
 #include "gnss_synchro.h"
 #include "acquisition_interface.h"
 #include "pcps_opencl_acquisition_cc.h"
-
+#include <gnuradio/blocks/stream_to_vector.h>
+#include <string>
 
 class ConfigurationInterface;
 
@@ -123,6 +122,7 @@ public:
      * \brief Restart acquisition algorithm
      */
     void reset() override;
+    void set_state(int state __attribute__((unused))) override{};
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_quicksync_acquisition.h

@@ -33,13 +33,12 @@
 #ifndef GNSS_SDR_GPS_L1_CA_PCPS_QUICKSYNC_ACQUISITION_H_
 #define GNSS_SDR_GPS_L1_CA_PCPS_QUICKSYNC_ACQUISITION_H_
 
-#include <string>
-#include <gnuradio/blocks/stream_to_vector.h>
 #include "gnss_synchro.h"
 #include "acquisition_interface.h"
 #include "pcps_quicksync_acquisition_cc.h"
 #include "configuration_interface.h"
-
+#include <gnuradio/blocks/stream_to_vector.h>
+#include <string>
 
 class ConfigurationInterface;
 
@@ -129,7 +128,7 @@ public:
     /*!
      * \brief If state = 1, it forces the block to start acquiring from the first sample
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/gps_l1_ca_pcps_tong_acquisition.h

@@ -32,12 +32,12 @@
 #ifndef GNSS_SDR_GPS_L1_CA_TONG_ACQUISITION_H_
 #define GNSS_SDR_GPS_L1_CA_TONG_ACQUISITION_H_
 
-#include <string>
-#include <gnuradio/blocks/stream_to_vector.h>
 #include "gnss_synchro.h"
 #include "acquisition_interface.h"
 #include "pcps_tong_acquisition_cc.h"
 #include "configuration_interface.h"
+#include <gnuradio/blocks/stream_to_vector.h>
+#include <string>
 
 class ConfigurationInterface;
 
@@ -127,7 +127,7 @@ public:
     /*!
      * \brief If state = 1, it forces the block to start acquiring from the first sample
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/gps_l2_m_pcps_acquisition.h

@@ -132,7 +132,7 @@ public:
     /*!
      * \brief If state = 1, it forces the block to start acquiring from the first sample
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/adapters/gps_l5i_pcps_acquisition.h

@@ -132,7 +132,7 @@ public:
     /*!
      * \brief If state = 1, it forces the block to start acquiring from the first sample
      */
-    void set_state(int state);
+    void set_state(int state) override;
 
 private:
     ConfigurationInterface* configuration_;

src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_fine_doppler_cc.cc

@@ -133,6 +133,12 @@ void pcps_acquisition_fine_doppler_cc::set_doppler_step(unsigned int doppler_ste
         {
             d_grid_data[i] = static_cast<float *>(volk_gnsssdr_malloc(d_fft_size * sizeof(float), volk_gnsssdr_get_alignment()));
         }
+
+    if (d_dump)
+        {
+            grid_ = arma::fmat(d_fft_size, d_num_doppler_points, arma::fill::zeros);
+        }
+
     update_carrier_wipeoff();
 }
 
@@ -181,11 +187,6 @@ void pcps_acquisition_fine_doppler_cc::init()
     d_gnss_synchro->Acq_doppler_hz = 0.0;
     d_gnss_synchro->Acq_samplestamp_samples = 0;
     d_state = 0;
-
-    if (d_dump)
-        {
-            grid_ = arma::fmat(d_fft_size, d_num_doppler_points, arma::fill::zeros);
-        }
 }
 
 
@@ -261,7 +262,6 @@ double pcps_acquisition_fine_doppler_cc::compute_CAF()
                 }
         }
 
-
     // -- - Find 1 chip wide code phase exclude range around the peak
     uint32_t samplesPerChip = ceil(GPS_L1_CA_CHIP_PERIOD * static_cast<float>(this->d_fs_in));
     int32_t excludeRangeIndex1 = index_time - samplesPerChip;
@@ -364,7 +364,6 @@ int pcps_acquisition_fine_doppler_cc::estimate_Doppler()
     //int fft_size_extended = nextPowerOf2(signal_samples * zero_padding_factor);
     int fft_size_extended = signal_samples * zero_padding_factor;
     gr::fft::fft_complex *fft_operator = new gr::fft::fft_complex(fft_size_extended, true);
-
     //zero padding the entire vector
     std::fill_n(fft_operator->get_inbuf(), fft_size_extended, gr_complex(0.0, 0.0));
 
@@ -386,7 +385,6 @@ int pcps_acquisition_fine_doppler_cc::estimate_Doppler()
             memcpy(&code_replica[(n + 1) * d_fft_size], code_replica, d_fft_size * sizeof(gr_complex));
         }
     //2. Perform code wipe-off
-
     volk_32fc_x2_multiply_32fc(fft_operator->get_inbuf(), d_10_ms_buffer, code_replica, signal_samples);
 
     // 3. Perform the FFT (zero padded!)
@@ -402,8 +400,8 @@ int pcps_acquisition_fine_doppler_cc::estimate_Doppler()
 
     //case even
     int counter = 0;
+    float *fftFreqBins = new float[fft_size_extended];
 
-    float fftFreqBins[fft_size_extended];
     std::fill_n(fftFreqBins, fft_size_extended, 0.0);
 
     for (int k = 0; k < (fft_size_extended / 2); k++)
@@ -414,7 +412,7 @@ int pcps_acquisition_fine_doppler_cc::estimate_Doppler()
 
     for (int k = fft_size_extended / 2; k > 0; k--)
         {
-            fftFreqBins[counter] = ((-static_cast<float>(d_fs_in) / 2) * static_cast<float>(k)) / (static_cast<float>(fft_size_extended) / 2.0);
+            fftFreqBins[counter] = ((-static_cast<float>(d_fs_in) / 2.0) * static_cast<float>(k)) / (static_cast<float>(fft_size_extended) / 2.0);
             counter++;
         }
 
@@ -434,9 +432,11 @@ int pcps_acquisition_fine_doppler_cc::estimate_Doppler()
     delete fft_operator;
     volk_gnsssdr_free(code_replica);
     volk_gnsssdr_free(p_tmp_vector);
+    delete[] fftFreqBins;
     return d_fft_size;
 }
 
+
 // Called by gnuradio to enable drivers, etc for i/o devices.
 bool pcps_acquisition_fine_doppler_cc::start()
 {
@@ -444,6 +444,32 @@ bool pcps_acquisition_fine_doppler_cc::start()
     return true;
 }
 
+
+void pcps_acquisition_fine_doppler_cc::set_state(int state)
+{
+    //gr::thread::scoped_lock lock(d_setlock);  // require mutex with work function called by the scheduler
+    d_state = state;
+
+    if (d_state == 1)
+        {
+            d_gnss_synchro->Acq_delay_samples = 0.0;
+            d_gnss_synchro->Acq_doppler_hz = 0.0;
+            d_gnss_synchro->Acq_samplestamp_samples = 0;
+            d_well_count = 0;
+            d_test_statistics = 0.0;
+            d_active = true;
+            reset_grid();
+        }
+    else if (d_state == 0)
+        {
+        }
+    else
+        {
+            LOG(ERROR) << "State can only be set to 0 or 1";
+        }
+}
+
+
 int pcps_acquisition_fine_doppler_cc::general_work(int noutput_items,
     gr_vector_int &ninput_items __attribute__((unused)), gr_vector_const_void_star &input_items,
     gr_vector_void_star &output_items __attribute__((unused)))
@@ -498,11 +524,6 @@ int pcps_acquisition_fine_doppler_cc::general_work(int noutput_items,
                     d_state = 5;  //negative acquisition
                 }
             d_n_samples_in_buffer = 0;
-            // Record results to file if required
-            if (d_dump and d_channel == d_dump_channel)
-                {
-                    dump_results(d_fft_size);
-                }
             d_sample_counter += d_fft_size;  // sample counter
             consume_each(d_fft_size);
             break;
@@ -535,6 +556,11 @@ int pcps_acquisition_fine_doppler_cc::general_work(int noutput_items,
             DLOG(INFO) << "doppler " << d_gnss_synchro->Acq_doppler_hz;
             d_positive_acq = 1;
             d_active = false;
+            // Record results to file if required
+            if (d_dump and d_channel == d_dump_channel)
+                {
+                    dump_results(d_fft_size);
+                }
             // Send message to channel port //0=STOP_CHANNEL 1=ACQ_SUCCEES 2=ACQ_FAIL
             this->message_port_pub(pmt::mp("events"), pmt::from_long(1));
             d_state = 0;
@@ -554,6 +580,11 @@ int pcps_acquisition_fine_doppler_cc::general_work(int noutput_items,
             DLOG(INFO) << "doppler " << d_gnss_synchro->Acq_doppler_hz;
             d_positive_acq = 0;
             d_active = false;
+            // Record results to file if required
+            if (d_dump and d_channel == d_dump_channel)
+                {
+                    dump_results(d_fft_size);
+                }
             // Send message to channel port //0=STOP_CHANNEL 1=ACQ_SUCCEES 2=ACQ_FAIL
             this->message_port_pub(pmt::mp("events"), pmt::from_long(2));
             d_state = 0;

src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_fine_doppler_cc.h

@@ -51,12 +51,12 @@
 
 #include "gnss_synchro.h"
 #include "acq_conf.h"
+#include <armadillo>
 #include <gnuradio/block.h>
 #include <gnuradio/gr_complex.h>
 #include <gnuradio/fft/fft.h>
 #include <fstream>
 #include <string>
-#include <armadillo>
 
 class pcps_acquisition_fine_doppler_cc;
 
@@ -70,7 +70,6 @@ pcps_make_acquisition_fine_doppler_cc(const Acq_Conf& conf_);
  * \brief This class implements a Parallel Code Phase Search Acquisition.
  *
  */
-
 class pcps_acquisition_fine_doppler_cc : public gr::block
 {
 private:
@@ -131,7 +130,6 @@ private:
     long int d_dump_number;
     unsigned int d_dump_channel;
 
-
 public:
     /*!
      * \brief Default destructor.
@@ -212,6 +210,13 @@ public:
      */
     void set_doppler_step(unsigned int doppler_step);
 
+    /*!
+      * \brief If set to 1, ensures that acquisition starts at the
+      * first available sample.
+      * \param state - int=1 forces start of acquisition
+      */
+    void set_state(int state);
+
     /*!
      * \brief Parallel Code Phase Search Acquisition signal processing.
      */

src/core/interfaces/acquisition_interface.h

@@ -61,6 +61,7 @@ public:
     virtual void set_doppler_step(unsigned int doppler_step) = 0;
     virtual void init() = 0;
     virtual void set_local_code() = 0;
+    virtual void set_state(int state) = 0;
     virtual signed int mag() = 0;
     virtual void reset() = 0;
 };

src/tests/unit-tests/signal-processing-blocks/acquisition/gps_l1_acq_performance_test.cc

@@ -33,6 +33,8 @@
 #include "signal_generator_flags.h"
 #include "tracking_true_obs_reader.h"
 #include "true_observables_reader.h"
+#include "gps_l1_ca_pcps_acquisition.h"
+#include "gps_l1_ca_pcps_acquisition_fine_doppler.h"
 #include "display.h"
 #include "gnuplot_i.h"
 #include <boost/filesystem.hpp>
@@ -42,6 +44,7 @@
 
 DEFINE_string(config_file_ptest, std::string(""), "File containing alternative configuration parameters for the acquisition performance test.");
 DEFINE_string(acq_test_input_file, std::string(""), "File containing raw signal data, must be in int8_t format. The signal generator will not be used.");
+DEFINE_string(acq_test_implementation, std::string("GPS_L1_CA_PCPS_Acquisition"), "Acquisition block implementation under test. Alternative: GPS_L1_CA_PCPS_Acquisition_Fine_Doppler");
 
 DEFINE_int32(acq_test_doppler_max, 5000, "Maximum Doppler, in Hz");
 DEFINE_int32(acq_test_doppler_step, 125, "Doppler step, in Hz.");
@@ -200,7 +203,6 @@ protected:
     {
     }
 
-
     std::vector<double> cn0_vector;
     std::vector<float> pfa_vector;
 
@@ -223,7 +225,7 @@ protected:
 
     gr::msg_queue::sptr queue;
     gr::top_block_sptr top_block;
-    std::shared_ptr<GpsL1CaPcpsAcquisition> acquisition;
+    std::shared_ptr<AcquisitionInterface> acquisition;
     std::shared_ptr<InMemoryConfiguration> config;
     std::shared_ptr<FileConfiguration> config_f;
     Gnss_Synchro gnss_synchro;
@@ -235,7 +237,7 @@ protected:
     int message;
     boost::thread ch_thread;
 
-    std::string implementation = "GPS_L1_CA_PCPS_Acquisition";
+    std::string implementation = FLAGS_acq_test_implementation;
 
     const double baseband_sampling_freq = static_cast<double>(FLAGS_fs_gen_sps);
     const int coherent_integration_time_ms = FLAGS_acq_test_coherent_time_ms;
@@ -379,6 +381,7 @@ int AcquisitionPerformanceTest::configure_receiver(double cn0, float pfa, unsign
             config->set_property("Acquisition_1C.implementation", implementation);
             config->set_property("Acquisition_1C.item_type", "gr_complex");
             config->set_property("Acquisition_1C.doppler_max", std::to_string(doppler_max));
+            config->set_property("Acquisition_1C.doppler_min", std::to_string(-doppler_max));
             config->set_property("Acquisition_1C.doppler_step", std::to_string(doppler_step));
 
             config->set_property("Acquisition_1C.threshold", std::to_string(pfa));
@@ -457,23 +460,39 @@ int AcquisitionPerformanceTest::run_receiver()
 
     int nsamples = floor(config->property("GNSS-SDR.internal_fs_sps", 2000000) * generated_signal_duration_s);
     boost::shared_ptr<gr::block> valve = gnss_sdr_make_valve(sizeof(gr_complex), nsamples, queue);
+    if (implementation.compare("GPS_L1_CA_PCPS_Acquisition") == 0)
+        {
+            acquisition = std::make_shared<GpsL1CaPcpsAcquisition>(config.get(), "Acquisition_1C", 1, 0);
+        }
+    else
+        {
+            if (implementation.compare("GPS_L1_CA_PCPS_Acquisition_Fine_Doppler") == 0)
+                {
+                    acquisition = std::make_shared<GpsL1CaPcpsAcquisitionFineDoppler>(config.get(), "Acquisition_1C", 1, 0);
+                }
+            else
+                {
+                    bool aux = false;
+                    EXPECT_EQ(true, aux);
+                }
+        }
 
-    acquisition = std::make_shared<GpsL1CaPcpsAcquisition>(config.get(), "Acquisition_1C", 1, 0);
     acquisition->set_gnss_synchro(&gnss_synchro);
     acquisition->set_channel(0);
-    acquisition->set_local_code();
     acquisition->set_doppler_max(config->property("Acquisition_1C.doppler_max", 10000));
     acquisition->set_doppler_step(config->property("Acquisition_1C.doppler_step", 500));
     acquisition->set_threshold(config->property("Acquisition_1C.threshold", 0.0));
+    acquisition->init();
+    acquisition->set_local_code();
+
     acquisition->set_state(1);  // Ensure that acquisition starts at the first sample
     acquisition->connect(top_block);
-    top_block->msg_connect(acquisition->get_right_block(), pmt::mp("events"), msg_rx, pmt::mp("events"));
-
-    acquisition->init();
 
+    acquisition->reset();
     top_block->connect(file_source, 0, gr_interleaved_char_to_complex, 0);
     top_block->connect(gr_interleaved_char_to_complex, 0, valve, 0);
     top_block->connect(valve, 0, acquisition->get_left_block(), 0);
+    top_block->msg_connect(acquisition->get_right_block(), pmt::mp("events"), msg_rx, pmt::mp("events"));
 
     start_queue();
 
@@ -534,6 +553,14 @@ void AcquisitionPerformanceTest::plot_results()
                             Gnuplot::set_GNUPlotPath(gnuplot_path);
 
                             Gnuplot g1("linespoints");
+                            if (FLAGS_show_plots)
+                                {
+                                    g1.showonscreen();  // window output
+                                }
+                            else
+                                {
+                                    g1.disablescreen();
+                                }
                             g1.cmd("set font \"Times,18\"");
                             g1.set_title("Receiver Operating Characteristic for GPS L1 C/A acquisition");
                             g1.cmd("set label 1 \"" + std::string("Coherent integration time: ") + std::to_string(config->property("Acquisition_1C.coherent_integration_time_ms", 1)) + " ms, Non-coherent integrations: " + std::to_string(config->property("Acquisition_1C.max_dwells", 1)) + " \" at screen 0.12, 0.83 font \"Times,16\"");
@@ -560,9 +587,16 @@ void AcquisitionPerformanceTest::plot_results()
                             g1.set_legend();
                             g1.savetops("ROC");
                             g1.savetopdf("ROC", 18);
-                            if (FLAGS_show_plots) g1.showonscreen();  // window output
 
                             Gnuplot g2("linespoints");
+                            if (FLAGS_show_plots)
+                                {
+                                    g2.showonscreen();  // window output
+                                }
+                            else
+                                {
+                                    g2.disablescreen();
+                                }
                             g2.cmd("set font \"Times,18\"");
                             g2.set_title("Receiver Operating Characteristic for GPS L1 C/A valid acquisition");
                             g2.cmd("set label 1 \"" + std::string("Coherent integration time: ") + std::to_string(config->property("Acquisition_1C.coherent_integration_time_ms", 1)) + " ms, Non-coherent integrations: " + std::to_string(config->property("Acquisition_1C.max_dwells", 1)) + " \" at screen  0.12, 0.83 font \"Times,16\"");
@@ -589,7 +623,6 @@ void AcquisitionPerformanceTest::plot_results()
                             g2.set_legend();
                             g2.savetops("ROC-valid-detection");
                             g2.savetopdf("ROC-valid-detection", 18);
-                            if (FLAGS_show_plots) g2.showonscreen();  // window output
                         }
                     catch (const GnuplotException& ge)
                         {