text: #!/usr/bin/env python2
  # -*- coding: utf-8 -*-
  ##################################################
  # GNU Radio Python Flow Graph
  # Title: Simulator Fsk Tracking Singletarget
  # Generated: Sat Jan 20 15:59:43 2018
  ##################################################
  
  if __name__ == '__main__':
      import ctypes
      import sys
      if sys.platform.startswith('linux'):
          try:
              x11 = ctypes.cdll.LoadLibrary('libX11.so')
              x11.XInitThreads()
          except:
              print "Warning: failed to XInitThreads()"
  
  from PyQt4 import Qt
  from gnuradio import analog
  from gnuradio import blocks
  from gnuradio import eng_notation
  from gnuradio import filter
  from gnuradio import gr
  from gnuradio.eng_option import eng_option
  from gnuradio.filter import firdes
  from gnuradio.qtgui import Range, RangeWidget
  from optparse import OptionParser
  import radar
  import sys
  from gnuradio import qtgui
  
  
  class simulator_fsk_tracking_singletarget(gr.top_block, Qt.QWidget):
  
      def __init__(self):
          gr.top_block.__init__(self, "Simulator Fsk Tracking Singletarget")
          Qt.QWidget.__init__(self)
          self.setWindowTitle("Simulator Fsk Tracking Singletarget")
          qtgui.util.check_set_qss()
          try:
              self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
          except:
              pass
          self.top_scroll_layout = Qt.QVBoxLayout()
          self.setLayout(self.top_scroll_layout)
          self.top_scroll = Qt.QScrollArea()
          self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
          self.top_scroll_layout.addWidget(self.top_scroll)
          self.top_scroll.setWidgetResizable(True)
          self.top_widget = Qt.QWidget()
          self.top_scroll.setWidget(self.top_widget)
          self.top_layout = Qt.QVBoxLayout(self.top_widget)
          self.top_grid_layout = Qt.QGridLayout()
          self.top_layout.addLayout(self.top_grid_layout)
  
          self.settings = Qt.QSettings("GNU Radio", "simulator_fsk_tracking_singletarget")
          self.restoreGeometry(self.settings.value("geometry").toByteArray())
  
          ##################################################
          # Variables
          ##################################################
          self.samp_rate = samp_rate = 5000000
          self.blocks_per_tag = blocks_per_tag = 2**17
          self.samp_per_freq = samp_per_freq = 1
          self.freq_res = freq_res = samp_rate/2/blocks_per_tag
          self.delta_freq = delta_freq = samp_rate/4
          self.center_freq = center_freq = 2.4e9
          self.velocity = velocity = 20
          self.v_res = v_res = freq_res*3e8/2/center_freq
          self.threshold = threshold = -120
          self.samp_discard = samp_discard = 0
          self.range_value = range_value = 10
          self.range_time = range_time = 10
          self.min_output_buffer = min_output_buffer = 2*(blocks_per_tag*samp_per_freq*2)
          self.decimator_fac = decimator_fac = 2**7
          self.R_max = R_max = 3e8/2/delta_freq
  
          ##################################################
          # Blocks
          ##################################################
          self._velocity_range = Range(-30, 30, 1, 20, 200)
          self._velocity_win = RangeWidget(self._velocity_range, self.set_velocity, "velocity", "counter_slider", float)
          self.top_layout.addWidget(self._velocity_win)
          self._threshold_range = Range(-200, 1000, 1, -120, 200)
          self._threshold_win = RangeWidget(self._threshold_range, self.set_threshold, 'Threshold Peak detector', "counter_slider", float)
          self.top_layout.addWidget(self._threshold_win)
          self._range_value_range = Range(0, 120, 1, 10, 200)
          self._range_value_win = RangeWidget(self._range_value_range, self.set_range_value, 'range', "counter_slider", float)
          self.top_layout.addWidget(self._range_value_win)
          self.rational_resampler_xxx_0_0 = filter.rational_resampler_ccc(
                  interpolation=1,
                  decimation=decimator_fac,
                  taps=None,
                  fractional_bw=None,
          )
          self.rational_resampler_xxx_0 = filter.rational_resampler_ccc(
                  interpolation=1,
                  decimation=decimator_fac,
                  taps=None,
                  fractional_bw=None,
          )
          self.radar_ts_fft_cc_0_0 = radar.ts_fft_cc(blocks_per_tag/decimator_fac,  "packet_len")
          self.radar_ts_fft_cc_0 = radar.ts_fft_cc(blocks_per_tag/decimator_fac,  "packet_len")
          self.radar_tracking_singletarget_0 = radar.tracking_singletarget(100, 1, v_res, 0.1, 0.001, 3, "particle")
          self.radar_static_target_simulator_cc_0 = radar.static_target_simulator_cc((range_value,), (velocity,), (1e16,), (0,), (0,), samp_rate, center_freq, -10, True, True, "packet_len")
          (self.radar_static_target_simulator_cc_0).set_min_output_buffer(524288)
          self.radar_split_fsk_cc_0 = radar.split_fsk_cc(samp_per_freq, samp_discard, "packet_len")
          (self.radar_split_fsk_cc_0).set_min_output_buffer(524288)
          self.radar_signal_generator_fsk_c_0 = radar.signal_generator_fsk_c(samp_rate, samp_per_freq, blocks_per_tag, -delta_freq/2, delta_freq/2, 1, "packet_len")
          (self.radar_signal_generator_fsk_c_0).set_min_output_buffer(524288)
          self.radar_qtgui_time_plot_0_0_0 = radar.qtgui_time_plot(250, 'range', (0,R_max), range_time, '')
          self.radar_qtgui_time_plot_0_0 = radar.qtgui_time_plot(250, 'range', (0,R_max), range_time, "TRACKING")
          self.radar_find_max_peak_c_0 = radar.find_max_peak_c(samp_rate/decimator_fac/2, threshold, 0, (), False, "packet_len")
          self.radar_estimator_fsk_0 = radar.estimator_fsk(center_freq, delta_freq, False)
          self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
          (self.blocks_throttle_0).set_min_output_buffer(524288)
          self.blocks_tagged_stream_multiply_length_0_0 = blocks.tagged_stream_multiply_length(gr.sizeof_gr_complex*1, "packet_len", 1.0/decimator_fac)
          (self.blocks_tagged_stream_multiply_length_0_0).set_min_output_buffer(524288)
          self.blocks_tagged_stream_multiply_length_0 = blocks.tagged_stream_multiply_length(gr.sizeof_gr_complex*1, "packet_len", 1.0/decimator_fac)
          (self.blocks_tagged_stream_multiply_length_0).set_min_output_buffer(524288)
          self.blocks_multiply_conjugate_cc_1 = blocks.multiply_conjugate_cc(1)
          (self.blocks_multiply_conjugate_cc_1).set_min_output_buffer(524288)
          self.blocks_multiply_conjugate_cc_0 = blocks.multiply_conjugate_cc(1)
          (self.blocks_multiply_conjugate_cc_0).set_min_output_buffer(524288)
          self.blocks_add_xx_0 = blocks.add_vcc(1)
          (self.blocks_add_xx_0).set_min_output_buffer(524288)
          self.analog_noise_source_x_0 = analog.noise_source_c(analog.GR_GAUSSIAN, 0.5, 0)
          (self.analog_noise_source_x_0).set_min_output_buffer(524288)
  
          ##################################################
          # Connections
          ##################################################
          self.msg_connect((self.radar_estimator_fsk_0, 'Msg out'), (self.radar_qtgui_time_plot_0_0_0, 'Msg in'))
          self.msg_connect((self.radar_estimator_fsk_0, 'Msg out'), (self.radar_tracking_singletarget_0, 'Msg in'))
          self.msg_connect((self.radar_find_max_peak_c_0, 'Msg out'), (self.radar_estimator_fsk_0, 'Msg in'))
          self.msg_connect((self.radar_tracking_singletarget_0, 'Msg out'), (self.radar_qtgui_time_plot_0_0, 'Msg in'))
          self.connect((self.analog_noise_source_x_0, 0), (self.blocks_add_xx_0, 0))
          self.connect((self.blocks_add_xx_0, 0), (self.blocks_multiply_conjugate_cc_1, 0))
          self.connect((self.blocks_multiply_conjugate_cc_0, 0), (self.radar_find_max_peak_c_0, 0))
          self.connect((self.blocks_multiply_conjugate_cc_1, 0), (self.radar_split_fsk_cc_0, 0))
          self.connect((self.blocks_tagged_stream_multiply_length_0, 0), (self.radar_ts_fft_cc_0, 0))
          self.connect((self.blocks_tagged_stream_multiply_length_0_0, 0), (self.radar_ts_fft_cc_0_0, 0))
          self.connect((self.blocks_throttle_0, 0), (self.blocks_multiply_conjugate_cc_1, 1))
          self.connect((self.blocks_throttle_0, 0), (self.radar_static_target_simulator_cc_0, 0))
          self.connect((self.radar_signal_generator_fsk_c_0, 0), (self.blocks_throttle_0, 0))
          self.connect((self.radar_split_fsk_cc_0, 0), (self.rational_resampler_xxx_0, 0))
          self.connect((self.radar_split_fsk_cc_0, 1), (self.rational_resampler_xxx_0_0, 0))
          self.connect((self.radar_static_target_simulator_cc_0, 0), (self.blocks_add_xx_0, 1))
          self.connect((self.radar_ts_fft_cc_0, 0), (self.blocks_multiply_conjugate_cc_0, 1))
          self.connect((self.radar_ts_fft_cc_0_0, 0), (self.blocks_multiply_conjugate_cc_0, 0))
          self.connect((self.rational_resampler_xxx_0, 0), (self.blocks_tagged_stream_multiply_length_0, 0))
          self.connect((self.rational_resampler_xxx_0_0, 0), (self.blocks_tagged_stream_multiply_length_0_0, 0))
  
      def closeEvent(self, event):
          self.settings = Qt.QSettings("GNU Radio", "simulator_fsk_tracking_singletarget")
          self.settings.setValue("geometry", self.saveGeometry())
          event.accept()
  
      def get_samp_rate(self):
          return self.samp_rate
  
      def set_samp_rate(self, samp_rate):
          self.samp_rate = samp_rate
          self.set_delta_freq(self.samp_rate/4)
          self.radar_static_target_simulator_cc_0.setup_targets((self.range_value,), (self.velocity,), (1e16,), (0,), (0,), self.samp_rate, self.center_freq, -10, True, True)
          self.set_freq_res(self.samp_rate/2/self.blocks_per_tag)
          self.blocks_throttle_0.set_sample_rate(self.samp_rate)
  
      def get_blocks_per_tag(self):
          return self.blocks_per_tag
  
      def set_blocks_per_tag(self, blocks_per_tag):
          self.blocks_per_tag = blocks_per_tag
          self.set_min_output_buffer(2*(self.blocks_per_tag*self.samp_per_freq*2))
          self.set_freq_res(self.samp_rate/2/self.blocks_per_tag)
  
      def get_samp_per_freq(self):
          return self.samp_per_freq
  
      def set_samp_per_freq(self, samp_per_freq):
          self.samp_per_freq = samp_per_freq
          self.set_min_output_buffer(2*(self.blocks_per_tag*self.samp_per_freq*2))
  
      def get_freq_res(self):
          return self.freq_res
  
      def set_freq_res(self, freq_res):
          self.freq_res = freq_res
          self.set_v_res(self.freq_res*3e8/2/self.center_freq)
  
      def get_delta_freq(self):
          return self.delta_freq
  
      def set_delta_freq(self, delta_freq):
          self.delta_freq = delta_freq
          self.set_R_max(3e8/2/self.delta_freq)
  
      def get_center_freq(self):
          return self.center_freq
  
      def set_center_freq(self, center_freq):
          self.center_freq = center_freq
          self.set_v_res(self.freq_res*3e8/2/self.center_freq)
          self.radar_static_target_simulator_cc_0.setup_targets((self.range_value,), (self.velocity,), (1e16,), (0,), (0,), self.samp_rate, self.center_freq, -10, True, True)
  
      def get_velocity(self):
          return self.velocity
  
      def set_velocity(self, velocity):
          self.velocity = velocity
          self.radar_static_target_simulator_cc_0.setup_targets((self.range_value,), (self.velocity,), (1e16,), (0,), (0,), self.samp_rate, self.center_freq, -10, True, True)
  
      def get_v_res(self):
          return self.v_res
  
      def set_v_res(self, v_res):
          self.v_res = v_res
  
      def get_threshold(self):
          return self.threshold
  
      def set_threshold(self, threshold):
          self.threshold = threshold
          self.radar_find_max_peak_c_0.set_threshold(self.threshold)
  
      def get_samp_discard(self):
          return self.samp_discard
  
      def set_samp_discard(self, samp_discard):
          self.samp_discard = samp_discard
  
      def get_range_value(self):
          return self.range_value
  
      def set_range_value(self, range_value):
          self.range_value = range_value
          self.radar_static_target_simulator_cc_0.setup_targets((self.range_value,), (self.velocity,), (1e16,), (0,), (0,), self.samp_rate, self.center_freq, -10, True, True)
  
      def get_range_time(self):
          return self.range_time
  
      def set_range_time(self, range_time):
          self.range_time = range_time
  
      def get_min_output_buffer(self):
          return self.min_output_buffer
  
      def set_min_output_buffer(self, min_output_buffer):
          self.min_output_buffer = min_output_buffer
  
      def get_decimator_fac(self):
          return self.decimator_fac
  
      def set_decimator_fac(self, decimator_fac):
          self.decimator_fac = decimator_fac
          self.blocks_tagged_stream_multiply_length_0_0.set_scalar(1.0/self.decimator_fac)
          self.blocks_tagged_stream_multiply_length_0.set_scalar(1.0/self.decimator_fac)
  
      def get_R_max(self):
          return self.R_max
  
      def set_R_max(self, R_max):
          self.R_max = R_max
  
  
  def main(top_block_cls=simulator_fsk_tracking_singletarget, options=None):
  
      from distutils.version import StrictVersion
      if StrictVersion(Qt.qVersion()) >= StrictVersion("4.5.0"):
          style = gr.prefs().get_string('qtgui', 'style', 'raster')
          Qt.QApplication.setGraphicsSystem(style)
      qapp = Qt.QApplication(sys.argv)
  
      tb = top_block_cls()
      tb.start()
      tb.show()
  
      def quitting():
          tb.stop()
          tb.wait()
      qapp.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
      qapp.exec_()
  
  
  if __name__ == '__main__':
      main()
  