##################################################
# Gnuradio Python Flow Graph
# Title: USRP HRPT Receiver
-# Generated: Mon Nov 2 08:30:47 2009
+# Generated: Mon Nov 9 07:47:17 2009
##################################################
from gnuradio import eng_notation
class file_rx_hrpt(grc_wxgui.top_block_gui):
- def __init__(self, input_filename='usrp.dat', decim=16):
+ def __init__(self, input_filename="usrp.dat", decim=32):
grc_wxgui.top_block_gui.__init__(self, title="USRP HRPT Receiver")
##################################################
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(config_filename)
try: saved_pll_alpha = self._saved_pll_alpha_config.getfloat('usrp_rx_hrpt', 'pll_alpha')
- except: saved_pll_alpha = 0.05
+ except: saved_pll_alpha = 0.01
self.saved_pll_alpha = saved_pll_alpha
self._saved_clock_alpha_config = ConfigParser.ConfigParser()
self._saved_clock_alpha_config.read(config_filename)
try: saved_clock_alpha = self._saved_clock_alpha_config.getfloat('usrp_rx_hrpt', 'clock_alpha')
- except: saved_clock_alpha = 0.05
+ except: saved_clock_alpha = 0.01
self.saved_clock_alpha = saved_clock_alpha
- self._side_config = ConfigParser.ConfigParser()
- self._side_config.read(config_filename)
- try: side = self._side_config.get('usrp_rx_hrpt', 'side')
- except: side = 'A'
- self.side = side
self.pll_alpha = pll_alpha = saved_pll_alpha
self._output_filename_config = ConfigParser.ConfigParser()
self._output_filename_config.read(config_filename)
try: output_filename = self._output_filename_config.get('usrp_rx_hrpt', 'filename')
- except: output_filename = 'frames.dat'
+ except: output_filename = 'frames.hrpt'
self.output_filename = output_filename
- self.max_clock_offset = max_clock_offset = 0.1
+ self.max_clock_offset = max_clock_offset = 100e-6
self.max_carrier_offset = max_carrier_offset = 2*math.pi*100e3/sample_rate
self.hs = hs = int(sps/2.0)
self.clock_alpha = clock_alpha = saved_clock_alpha
# Blocks
##################################################
self.agc = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
- self.decoder = noaa.hrpt_decoder()
+ self.decoder = noaa.hrpt_decoder(True,False)
self.deframer = noaa.hrpt_deframer()
self.demod_scope = scopesink2.scope_sink_f(
self.displays.GetPage(1).GetWin(),
size=(640, 360),
)
self.displays.GetPage(0).GridAdd(self.rx_fft.win, 0, 0, 1, 1)
- self.throttle = gr.throttle(gr.sizeof_short*1, sample_rate)
+ self.throttle = gr.throttle(gr.sizeof_short*1, 2*sample_rate)
##################################################
# Connections
def set_sample_rate(self, sample_rate):
self.sample_rate = sample_rate
- self.set_max_carrier_offset(2*math.pi*100e3/self.sample_rate)
self.set_sps(self.sample_rate/self.sym_rate)
self.rx_fft.set_sample_rate(self.sample_rate)
+ self.set_max_carrier_offset(2*math.pi*100e3/self.sample_rate)
def set_config_filename(self, config_filename):
self.config_filename = config_filename
- self._side_config = ConfigParser.ConfigParser()
- self._side_config.read(self.config_filename)
- if not self._side_config.has_section('usrp_rx_hrpt'):
- self._side_config.add_section('usrp_rx_hrpt')
- self._side_config.set('usrp_rx_hrpt', 'side', str(self.side))
- self._side_config.write(open(self.config_filename, 'w'))
+ self._output_filename_config = ConfigParser.ConfigParser()
+ self._output_filename_config.read(self.config_filename)
+ if not self._output_filename_config.has_section('usrp_rx_hrpt'):
+ self._output_filename_config.add_section('usrp_rx_hrpt')
+ self._output_filename_config.set('usrp_rx_hrpt', 'filename', str(self.output_filename))
+ self._output_filename_config.write(open(self.config_filename, 'w'))
self._saved_pll_alpha_config = ConfigParser.ConfigParser()
self._saved_pll_alpha_config.read(self.config_filename)
if not self._saved_pll_alpha_config.has_section('usrp_rx_hrpt'):
self._saved_clock_alpha_config.add_section('usrp_rx_hrpt')
self._saved_clock_alpha_config.set('usrp_rx_hrpt', 'clock_alpha', str(self.clock_alpha))
self._saved_clock_alpha_config.write(open(self.config_filename, 'w'))
- self._output_filename_config = ConfigParser.ConfigParser()
- self._output_filename_config.read(self.config_filename)
- if not self._output_filename_config.has_section('usrp_rx_hrpt'):
- self._output_filename_config.add_section('usrp_rx_hrpt')
- self._output_filename_config.set('usrp_rx_hrpt', 'filename', str(self.output_filename))
- self._output_filename_config.write(open(self.config_filename, 'w'))
def set_sps(self, sps):
self.sps = sps
- self.set_hs(int(self.sps/2.0))
self.gr_clock_recovery_mm_xx_0.set_omega(self.sps/2.0)
+ self.set_hs(int(self.sps/2.0))
def set_saved_pll_alpha(self, saved_pll_alpha):
self.saved_pll_alpha = saved_pll_alpha
self.saved_clock_alpha = saved_clock_alpha
self.set_clock_alpha(self.saved_clock_alpha)
- def set_side(self, side):
- self.side = side
- self._side_config = ConfigParser.ConfigParser()
- self._side_config.read(self.config_filename)
- if not self._side_config.has_section('usrp_rx_hrpt'):
- self._side_config.add_section('usrp_rx_hrpt')
- self._side_config.set('usrp_rx_hrpt', 'side', str(self.side))
- self._side_config.write(open(self.config_filename, 'w'))
-
def set_pll_alpha(self, pll_alpha):
self.pll_alpha = pll_alpha
self.pll.set_alpha(self.pll_alpha)
if __name__ == '__main__':
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
- parser.add_option("-F", "--input-filename", dest="input_filename", type="string", default='usrp.dat',
+ parser.add_option("-F", "--input-filename", dest="input_filename", type="string", default="usrp.dat",
help="Set usrp.dat [default=%default]")
- parser.add_option("-d", "--decim", dest="decim", type="intx", default=16,
+ parser.add_option("-d", "--decim", dest="decim", type="intx", default=32,
help="Set decim [default=%default]")
(options, args) = parser.parse_args()
tb = file_rx_hrpt(input_filename=options.input_filename, decim=options.decim)
projects / debian / gnuradio / blobdiff