Merge branch 'dfsg-orig'

[debian/gnuradio] / gr-noaa / apps / hrpt_decode.py

diff --git a/gr-noaa/apps/hrpt_decode.py b/gr-noaa/apps/hrpt_decode.py
new file mode 100755 (executable)
index 0000000..158780b
--- /dev/null
+++ b/gr-noaa/apps/hrpt_decode.py
@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+##################################################
+# Gnuradio Python Flow Graph
+# Title: Hrpt Decode
+# Generated: Sun Nov  8 10:49:01 2009
+##################################################
+
+from gnuradio import eng_notation
+from gnuradio import gr
+from gnuradio import noaa
+from gnuradio.eng_option import eng_option
+from gnuradio.gr import firdes
+from optparse import OptionParser
+import math, os
+
+class hrpt_decode(gr.top_block):
+
+       def __init__(self, decim=32, pll_alpha=0.01, clock_alpha=0.01, input_filename="frames.hrpt"):
+               gr.top_block.__init__(self, "Hrpt Decode")
+
+               ##################################################
+               # Parameters
+               ##################################################
+               self.decim = decim
+               self.pll_alpha = pll_alpha
+               self.clock_alpha = clock_alpha
+               self.input_filename = input_filename
+
+               ##################################################
+               # Variables
+               ##################################################
+               self.sym_rate = sym_rate = 600*1109
+               self.sample_rate = sample_rate = 64e6/decim
+               self.sps = sps = sample_rate/sym_rate
+               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)
+
+               ##################################################
+               # Blocks
+               ##################################################
+               self.decoder = noaa.hrpt_decoder(True,True)
+               self.file_source = gr.file_source(gr.sizeof_short*1, input_filename, False)
+
+               ##################################################
+               # Connections
+               ##################################################
+               self.connect((self.file_source, 0), (self.decoder, 0))
+
+       def set_decim(self, decim):
+               self.decim = decim
+               self.set_sample_rate(64e6/self.decim)
+
+       def set_pll_alpha(self, pll_alpha):
+               self.pll_alpha = pll_alpha
+
+       def set_clock_alpha(self, clock_alpha):
+               self.clock_alpha = clock_alpha
+
+       def set_input_filename(self, input_filename):
+               self.input_filename = input_filename
+
+       def set_sym_rate(self, sym_rate):
+               self.sym_rate = sym_rate
+               self.set_sps(self.sample_rate/self.sym_rate)
+
+       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)
+
+       def set_sps(self, sps):
+               self.sps = sps
+               self.set_hs(int(self.sps/2.0))
+
+       def set_max_clock_offset(self, max_clock_offset):
+               self.max_clock_offset = max_clock_offset
+
+       def set_max_carrier_offset(self, max_carrier_offset):
+               self.max_carrier_offset = max_carrier_offset
+
+       def set_hs(self, hs):
+               self.hs = hs
+
+if __name__ == '__main__':
+       parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
+       parser.add_option("-d", "--decim", dest="decim", type="intx", default=32,
+               help="Set decim [default=%default]")
+       parser.add_option("-p", "--pll-alpha", dest="pll_alpha", type="eng_float", default=eng_notation.num_to_str(0.01),
+               help="Set pll_alpha [default=%default]")
+       parser.add_option("-s", "--clock-alpha", dest="clock_alpha", type="eng_float", default=eng_notation.num_to_str(0.01),
+               help="Set clock_alpha [default=%default]")
+       parser.add_option("-F", "--input-filename", dest="input_filename", type="string", default="frames.hrpt",
+               help="Set frames.hrpt [default=%default]")
+       (options, args) = parser.parse_args()
+       tb = hrpt_decode(decim=options.decim, pll_alpha=options.pll_alpha, clock_alpha=options.clock_alpha, input_filename=options.input_filename)
+       tb.run()
+