def set_channel_num(self, channel_num):
self.channel_num = channel_num
self.blocks_file_sink_0.open("" + self.out_directory + "/fc_" +
str(self.channel_num) + ".cfile")
self.blocks_rotator_cc_0.set_phase_inc(
-2 * math.pi * (arfcn.get_freq_from_arfcn(self.channel_num, 'e') -
self.fc + self.f_offset) / self.samp_rate)
def __init__(self, channel_num=22, decim=50, directory="./", f_offset=0, fc=947.4e6, out_directory="./", samp_rate=25e6):
gr.top_block.__init__(self, "Get Channel")
##################################################
# Parameters
##################################################
self.channel_num = channel_num
self.decim = decim
self.directory = directory
self.f_offset = f_offset
self.fc = fc
self.out_directory = out_directory
self.samp_rate = samp_rate
##################################################
# Variables
##################################################
self.SDCCH = SDCCH = 6
self.RACH = RACH = 3
self.PCH = PCH = 5
self.CHANNEL_UNKNOWN = CHANNEL_UNKNOWN = 0
self.CCCH = CCCH = 2
self.BCCH = BCCH = 1
self.AGCH = AGCH = 4
##################################################
# Blocks
##################################################
self.pfb_decimator_ccf_0 = pfb.decimator_ccf(
decim,
(),
0,
100,
True,
True)
self.pfb_decimator_ccf_0.declare_sample_delay(0)
self.blocks_rotator_cc_0 = blocks.rotator_cc(-2*math.pi*(arfcn.get_freq_from_arfcn(channel_num,'e')-fc+f_offset)/samp_rate)
self.blocks_interleaved_short_to_complex_1 = blocks.interleaved_short_to_complex(False, False)
self.blocks_file_source_0 = blocks.file_source(gr.sizeof_short*1, "/home/piotr/Odbiornik_gsm/Hopping/test_data/nagranie_hopping_4", False)
self.blocks_file_sink_0 = blocks.file_sink(gr.sizeof_gr_complex*1, ""+out_directory+"/fc_"+ str(channel_num) +".cfile", False)
self.blocks_file_sink_0.set_unbuffered(False)
##################################################
# Connections
##################################################
self.connect((self.blocks_file_source_0, 0), (self.blocks_interleaved_short_to_complex_1, 0))
self.connect((self.blocks_interleaved_short_to_complex_1, 0), (self.blocks_rotator_cc_0, 0))
self.connect((self.blocks_rotator_cc_0, 0), (self.pfb_decimator_ccf_0, 0))
self.connect((self.pfb_decimator_ccf_0, 0), (self.blocks_file_sink_0, 0))
def set_f_offset(self, f_offset):
self.f_offset = f_offset
self.blocks_rotator_cc_0.set_phase_inc(-2*math.pi*(arfcn.get_freq_from_arfcn(self.channel_num,'e')-self.fc+self.f_offset)/self.samp_rate)
def set_channel_num(self, channel_num):
self.channel_num = channel_num
self.blocks_file_sink_0.open(""+self.out_directory+"/fc_"+ str(self.channel_num) +".cfile")
self.blocks_rotator_cc_0.set_phase_inc(-2*math.pi*(arfcn.get_freq_from_arfcn(self.channel_num,'e')-self.fc+self.f_offset)/self.samp_rate)
def __init__(self,
channel_num=22,
decim=50,
directory="./",
f_offset=0,
fc=947.4e6,
out_directory="./",
samp_rate=25e6):
gr.top_block.__init__(self, "Get Channel")
##################################################
# Parameters
##################################################
self.channel_num = channel_num
self.decim = decim
self.directory = directory
self.f_offset = f_offset
self.fc = fc
self.out_directory = out_directory
self.samp_rate = samp_rate
##################################################
# Variables
##################################################
self.SDCCH = SDCCH = 6
self.RACH = RACH = 3
self.PCH = PCH = 5
self.CHANNEL_UNKNOWN = CHANNEL_UNKNOWN = 0
self.CCCH = CCCH = 2
self.BCCH = BCCH = 1
self.AGCH = AGCH = 4
##################################################
# Blocks
##################################################
self.pfb_decimator_ccf_0 = pfb.decimator_ccf(decim, (), 0, 100, True,
True)
self.pfb_decimator_ccf_0.declare_sample_delay(0)
self.blocks_rotator_cc_0 = blocks.rotator_cc(
-2 * math.pi *
(arfcn.get_freq_from_arfcn(channel_num, 'e') - fc + f_offset) /
samp_rate)
self.blocks_interleaved_short_to_complex_1 = blocks.interleaved_short_to_complex(
False, False)
self.blocks_file_source_0 = blocks.file_source(
gr.sizeof_short * 1,
"/home/piotr/Odbiornik_gsm/Hopping/test_data/nagranie_hopping_4",
False)
self.blocks_file_sink_0 = blocks.file_sink(
gr.sizeof_gr_complex * 1,
"" + out_directory + "/fc_" + str(channel_num) + ".cfile", False)
self.blocks_file_sink_0.set_unbuffered(False)
##################################################
# Connections
##################################################
self.connect((self.blocks_file_source_0, 0),
(self.blocks_interleaved_short_to_complex_1, 0))
self.connect((self.blocks_interleaved_short_to_complex_1, 0),
(self.blocks_rotator_cc_0, 0))
self.connect((self.blocks_rotator_cc_0, 0),
(self.pfb_decimator_ccf_0, 0))
self.connect((self.pfb_decimator_ccf_0, 0),
(self.blocks_file_sink_0, 0))
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.blocks_rotator_cc_0.set_phase_inc(
-2 * math.pi * (arfcn.get_freq_from_arfcn(self.channel_num, 'e') -
self.fc + self.f_offset) / self.samp_rate)
