def __init__(self,
max_freq_offset=10,
guard=0.125,
mode=3,
snr=10,
tmcc_print=False):
gr.hier_block2.__init__(
# self, "ISDB-T RF Channel Decoding",
self,
"isdbt_rf_channel_decoding",
gr.io_signature(1, 1, gr.sizeof_gr_complex * 1),
gr.io_signaturev(2, 2, [
gr.sizeof_gr_complex * 13 * 96 * 2**(mode - 1),
gr.sizeof_gr_complex * (13 * 108 * 2**(mode - 1) + 1)
]),
)
##################################################
# Parameters
##################################################
self.max_freq_offset = max_freq_offset
self.guard = guard
self.mode = mode
self.snr = snr
self.tmcc_print = tmcc_print
##################################################
# Variables
##################################################
self.total_carriers = total_carriers = 2**(10 + mode)
self.data_carriers = data_carriers = 13 * 96 * 2**(mode - 1)
self.active_carriers = active_carriers = 13 * 108 * 2**(mode - 1) + 1
##################################################
# Blocks
##################################################
self.isdbt_tmcc_decoder_0 = isdbt.tmcc_decoder(mode, tmcc_print)
self.isdbt_sync_and_channel_estimaton_0 = isdbt.sync_and_channel_estimaton(
total_carriers, active_carriers, max_freq_offset)
self.isdbt_ofdm_sym_acquisition_0 = isdbt.ofdm_sym_acquisition(
total_carriers, int(guard * total_carriers), snr)
self.fft_vxx_0 = fft.fft_vcc(total_carriers, True,
(window.rectangular(total_carriers)),
True, 1)
##################################################
# Connections
##################################################
self.connect((self.fft_vxx_0, 0),
(self.isdbt_sync_and_channel_estimaton_0, 0))
self.connect((self.isdbt_ofdm_sym_acquisition_0, 0),
(self.fft_vxx_0, 0))
self.connect((self.isdbt_sync_and_channel_estimaton_0, 0),
(self.isdbt_tmcc_decoder_0, 0))
self.connect((self.isdbt_sync_and_channel_estimaton_0, 1), (self, 1))
self.connect((self.isdbt_tmcc_decoder_0, 0), (self, 0))
self.connect((self, 0), (self.isdbt_ofdm_sym_acquisition_0, 0))
def test_001_t(self):
# set up fg
total_segments = 13
mode = 1
total_carriers = total_segments * 108 * 2**(mode - 1) + 1
fft_size = 2**(10 + mode)
sync = isdbt.sync_and_channel_estimaton(fft_size, total_carriers, 200)
src_data = range(fft_size) * 2
src = blocks.vector_source_c(src_data, False, fft_size)
dst = blocks.vector_sink_c(total_carriers)
self.tb.connect(src, sync)
self.tb.connect(sync, dst)
self.tb.run()
actual_result = dst.data()
def test_001_t (self):
# set up fg
total_segments = 13;
mode = 1;
total_carriers = total_segments*108*2**(mode-1)+1
fft_size = 2**(10+mode)
sync = isdbt.sync_and_channel_estimaton(fft_size, total_carriers,200)
src_data = range(fft_size)*2
src = blocks.vector_source_c(src_data, False, fft_size)
dst = blocks.vector_sink_c(total_carriers)
self.tb.connect(src, sync)
self.tb.connect(sync,dst)
self.tb.run()
actual_result = dst.data()
def __init__(self, max_freq_offset=10, guard=0.125, mode=3, snr=10, tmcc_print=False):
gr.hier_block2.__init__(
# self, "ISDB-T RF Channel Decoding",
self, "isdbt_rf_channel_decoding",
gr.io_signature(1, 1, gr.sizeof_gr_complex*1),
gr.io_signaturev(2, 2, [gr.sizeof_gr_complex*13*96*2**(mode-1), gr.sizeof_gr_complex*(13*108*2**(mode-1)+1)]),
)
##################################################
# Parameters
##################################################
self.max_freq_offset = max_freq_offset
self.guard = guard
self.mode = mode
self.snr = snr
self.tmcc_print = tmcc_print
##################################################
# Variables
##################################################
self.total_carriers = total_carriers = 2**(10+mode)
self.data_carriers = data_carriers = 13*96*2**(mode-1)
self.active_carriers = active_carriers = 13*108*2**(mode-1)+1
##################################################
# Blocks
##################################################
self.isdbt_tmcc_decoder_0 = isdbt.tmcc_decoder(mode, tmcc_print)
self.isdbt_sync_and_channel_estimaton_0 = isdbt.sync_and_channel_estimaton(total_carriers, active_carriers, max_freq_offset)
self.isdbt_ofdm_sym_acquisition_0 = isdbt.ofdm_sym_acquisition(total_carriers, int(guard*total_carriers), snr)
self.fft_vxx_0 = fft.fft_vcc(total_carriers, True, (window.rectangular(total_carriers)), True, 1)
##################################################
# Connections
##################################################
self.connect((self.fft_vxx_0, 0), (self.isdbt_sync_and_channel_estimaton_0, 0))
self.connect((self.isdbt_ofdm_sym_acquisition_0, 0), (self.fft_vxx_0, 0))
self.connect((self.isdbt_sync_and_channel_estimaton_0, 0), (self.isdbt_tmcc_decoder_0, 0))
self.connect((self.isdbt_sync_and_channel_estimaton_0, 1), (self, 1))
self.connect((self.isdbt_tmcc_decoder_0, 0), (self, 0))
self.connect((self, 0), (self.isdbt_ofdm_sym_acquisition_0, 0))