def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="Vv014 64Qam34")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 8000000
##################################################
# Blocks
##################################################
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.GetWin(),
baseband_freq=429000000,
y_per_div=20,
y_divs=10,
ref_level=10,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="FFT Plot",
peak_hold=False,
size=(600, 600),
)
self.Add(self.wxgui_fftsink2_0.win)
self.dvbt2_pilotgenerator_cc_0 = dvbt2.pilotgenerator_cc(
dvbt2.CARRIERS_EXTENDED,
dvbt2.FFTSIZE_8K,
dvbt2.PILOT_PP7,
dvbt2.GI_1_32,
242,
dvbt2.PAPR_TR,
dvbt2.VERSION_111,
dvbt2.PREAMBLE_T2_SISO,
dvbt2.MISO_TX1,
dvbt2.EQUALIZATION_OFF,
dvbt2.BANDWIDTH_1_7_MHZ,
8192,
)
self.dvbt2_paprtr_cc_0 = dvbt2.paprtr_cc(
dvbt2.CARRIERS_EXTENDED,
dvbt2.FFTSIZE_8K,
dvbt2.PILOT_PP7,
dvbt2.GI_1_32,
242,
dvbt2.PAPR_TR,
dvbt2.VERSION_111,
2.83,
9,
8192,
)
self.dvbt2_p1insertion_cc_0 = dvbt2.p1insertion_cc(
dvbt2.CARRIERS_EXTENDED,
dvbt2.FFTSIZE_8K,
dvbt2.GI_1_32,
242,
dvbt2.PREAMBLE_T2_SISO,
dvbt2.SHOWLEVELS_OFF,
3.3,
)
self.dvbt2_modulator_bc_0 = dvbt2.modulator_bc(dvbt2.FECFRAME_NORMAL, dvbt2.MOD_64QAM, dvbt2.ROTATION_ON)
self.dvbt2_ldpc_bb_0 = dvbt2.ldpc_bb(dvbt2.FECFRAME_NORMAL, dvbt2.C3_4)
self.dvbt2_interleaver_bb_0 = dvbt2.interleaver_bb(dvbt2.FECFRAME_NORMAL, dvbt2.C3_4, dvbt2.MOD_64QAM)
self.dvbt2_freqinterleaver_cc_0 = dvbt2.freqinterleaver_cc(
dvbt2.CARRIERS_EXTENDED,
dvbt2.FFTSIZE_8K,
dvbt2.PILOT_PP7,
dvbt2.GI_1_32,
242,
dvbt2.PAPR_TR,
dvbt2.VERSION_111,
dvbt2.PREAMBLE_T2_SISO,
)
self.dvbt2_framemapper_cc_0 = dvbt2.framemapper_cc(
dvbt2.FECFRAME_NORMAL,
dvbt2.C3_4,
dvbt2.MOD_64QAM,
dvbt2.ROTATION_ON,
151,
3,
dvbt2.CARRIERS_EXTENDED,
dvbt2.FFTSIZE_8K,
dvbt2.GI_1_32,
dvbt2.L1_MOD_64QAM,
dvbt2.PILOT_PP7,
2,
242,
dvbt2.PAPR_TR,
dvbt2.VERSION_111,
dvbt2.PREAMBLE_T2_SISO,
dvbt2.INPUTMODE_NORMAL,
dvbt2.RESERVED_OFF,
dvbt2.L1_SCRAMBLED_OFF,
dvbt2.INBAND_OFF,
)
self.dvbt2_cellinterleaver_cc_0 = dvbt2.cellinterleaver_cc(dvbt2.FECFRAME_NORMAL, dvbt2.MOD_64QAM, 151, 3)
self.dvbt2_bch_bb_0 = dvbt2.bch_bb(dvbt2.FECFRAME_NORMAL, dvbt2.C3_4)
self.dvbt2_bbscrambler_bb_0 = dvbt2.bbscrambler_bb(dvbt2.FECFRAME_NORMAL, dvbt2.C3_4)
self.dvbt2_bbheader_bb_0 = dvbt2.bbheader_bb(
dvbt2.FECFRAME_NORMAL, dvbt2.C3_4, dvbt2.INPUTMODE_HIEFF, dvbt2.INBAND_OFF, 168, 4000000
)
self.digital_ofdm_cyclic_prefixer_0 = digital.ofdm_cyclic_prefixer(8192, 8192 + 8192 / 32, 0, "")
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex * 1, samp_rate, True)
self.blocks_file_source_0 = blocks.file_source(gr.sizeof_char * 1, "/home/re/xfer/vv014.ts", True)
##################################################
# Connections
##################################################
self.connect((self.blocks_file_source_0, 0), (self.dvbt2_bbheader_bb_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.digital_ofdm_cyclic_prefixer_0, 0), (self.dvbt2_p1insertion_cc_0, 0))
self.connect((self.dvbt2_bbheader_bb_0, 0), (self.dvbt2_bbscrambler_bb_0, 0))
self.connect((self.dvbt2_bbscrambler_bb_0, 0), (self.dvbt2_bch_bb_0, 0))
self.connect((self.dvbt2_bch_bb_0, 0), (self.dvbt2_ldpc_bb_0, 0))
self.connect((self.dvbt2_cellinterleaver_cc_0, 0), (self.dvbt2_framemapper_cc_0, 0))
self.connect((self.dvbt2_framemapper_cc_0, 0), (self.dvbt2_freqinterleaver_cc_0, 0))
self.connect((self.dvbt2_freqinterleaver_cc_0, 0), (self.dvbt2_pilotgenerator_cc_0, 0))
self.connect((self.dvbt2_interleaver_bb_0, 0), (self.dvbt2_modulator_bc_0, 0))
self.connect((self.dvbt2_ldpc_bb_0, 0), (self.dvbt2_interleaver_bb_0, 0))
self.connect((self.dvbt2_modulator_bc_0, 0), (self.dvbt2_cellinterleaver_cc_0, 0))
self.connect((self.dvbt2_p1insertion_cc_0, 0), (self.blocks_throttle_0, 0))
self.connect((self.dvbt2_paprtr_cc_0, 0), (self.digital_ofdm_cyclic_prefixer_0, 0))
self.connect((self.dvbt2_pilotgenerator_cc_0, 0), (self.dvbt2_paprtr_cc_0, 0))
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="Vv014 64Qam34")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 8000000
##################################################
# Blocks
##################################################
self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
self.GetWin(),
baseband_freq=429000000,
y_per_div=20,
y_divs=10,
ref_level=10,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="FFT Plot",
peak_hold=False,
size=(600, 600),
)
self.Add(self.wxgui_fftsink2_0.win)
self.dvbt2_pilotgenerator_cc_0 = dvbt2.pilotgenerator_cc(
dvbt2.CARRIERS_EXTENDED, dvbt2.FFTSIZE_8K, dvbt2.PILOT_PP7,
dvbt2.GI_1_32, 242, dvbt2.PAPR_TR, dvbt2.VERSION_111,
dvbt2.PREAMBLE_T2_SISO, dvbt2.MISO_TX1, dvbt2.EQUALIZATION_OFF,
dvbt2.BANDWIDTH_1_7_MHZ, 8192)
self.dvbt2_paprtr_cc_0 = dvbt2.paprtr_cc(
dvbt2.CARRIERS_EXTENDED, dvbt2.FFTSIZE_8K, dvbt2.PILOT_PP7,
dvbt2.GI_1_32, 242, dvbt2.PAPR_TR, dvbt2.VERSION_111, 2.83, 9,
8192)
self.dvbt2_p1insertion_cc_0 = dvbt2.p1insertion_cc(
dvbt2.CARRIERS_EXTENDED, dvbt2.FFTSIZE_8K, dvbt2.GI_1_32, 242,
dvbt2.PREAMBLE_T2_SISO, dvbt2.SHOWLEVELS_OFF, 3.3)
self.dvbt2_modulator_bc_0 = dvbt2.modulator_bc(dvbt2.FECFRAME_NORMAL,
dvbt2.MOD_64QAM,
dvbt2.ROTATION_ON)
self.dvbt2_ldpc_bb_0 = dvbt2.ldpc_bb(dvbt2.FECFRAME_NORMAL, dvbt2.C3_4)
self.dvbt2_interleaver_bb_0 = dvbt2.interleaver_bb(
dvbt2.FECFRAME_NORMAL, dvbt2.C3_4, dvbt2.MOD_64QAM)
self.dvbt2_freqinterleaver_cc_0 = dvbt2.freqinterleaver_cc(
dvbt2.CARRIERS_EXTENDED,
dvbt2.FFTSIZE_8K,
dvbt2.PILOT_PP7,
dvbt2.GI_1_32,
242,
dvbt2.PAPR_TR,
dvbt2.VERSION_111,
dvbt2.PREAMBLE_T2_SISO,
)
self.dvbt2_framemapper_cc_0 = dvbt2.framemapper_cc(
dvbt2.FECFRAME_NORMAL, dvbt2.C3_4, dvbt2.MOD_64QAM,
dvbt2.ROTATION_ON, 151, 3, dvbt2.CARRIERS_EXTENDED,
dvbt2.FFTSIZE_8K, dvbt2.GI_1_32, dvbt2.L1_MOD_64QAM,
dvbt2.PILOT_PP7, 2, 242, dvbt2.PAPR_TR, dvbt2.VERSION_111,
dvbt2.PREAMBLE_T2_SISO, dvbt2.INPUTMODE_NORMAL, dvbt2.RESERVED_OFF,
dvbt2.L1_SCRAMBLED_OFF, dvbt2.INBAND_OFF)
self.dvbt2_cellinterleaver_cc_0 = dvbt2.cellinterleaver_cc(
dvbt2.FECFRAME_NORMAL, dvbt2.MOD_64QAM, 151, 3)
self.dvbt2_bch_bb_0 = dvbt2.bch_bb(dvbt2.FECFRAME_NORMAL, dvbt2.C3_4)
self.dvbt2_bbscrambler_bb_0 = dvbt2.bbscrambler_bb(
dvbt2.FECFRAME_NORMAL, dvbt2.C3_4)
self.dvbt2_bbheader_bb_0 = dvbt2.bbheader_bb(dvbt2.FECFRAME_NORMAL,
dvbt2.C3_4,
dvbt2.INPUTMODE_HIEFF,
dvbt2.INBAND_OFF, 168,
4000000)
self.digital_ofdm_cyclic_prefixer_0 = digital.ofdm_cyclic_prefixer(
8192, 8192 + 8192 / 32, 0, "")
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex * 1,
samp_rate, True)
self.blocks_file_source_0 = blocks.file_source(
gr.sizeof_char * 1, "/home/re/xfer/vv014.ts", True)
##################################################
# Connections
##################################################
self.connect((self.blocks_file_source_0, 0),
(self.dvbt2_bbheader_bb_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.wxgui_fftsink2_0, 0))
self.connect((self.digital_ofdm_cyclic_prefixer_0, 0),
(self.dvbt2_p1insertion_cc_0, 0))
self.connect((self.dvbt2_bbheader_bb_0, 0),
(self.dvbt2_bbscrambler_bb_0, 0))
self.connect((self.dvbt2_bbscrambler_bb_0, 0),
(self.dvbt2_bch_bb_0, 0))
self.connect((self.dvbt2_bch_bb_0, 0), (self.dvbt2_ldpc_bb_0, 0))
self.connect((self.dvbt2_cellinterleaver_cc_0, 0),
(self.dvbt2_framemapper_cc_0, 0))
self.connect((self.dvbt2_framemapper_cc_0, 0),
(self.dvbt2_freqinterleaver_cc_0, 0))
self.connect((self.dvbt2_freqinterleaver_cc_0, 0),
(self.dvbt2_pilotgenerator_cc_0, 0))
self.connect((self.dvbt2_interleaver_bb_0, 0),
(self.dvbt2_modulator_bc_0, 0))
self.connect((self.dvbt2_ldpc_bb_0, 0),
(self.dvbt2_interleaver_bb_0, 0))
self.connect((self.dvbt2_modulator_bc_0, 0),
(self.dvbt2_cellinterleaver_cc_0, 0))
self.connect((self.dvbt2_p1insertion_cc_0, 0),
(self.blocks_throttle_0, 0))
self.connect((self.dvbt2_paprtr_cc_0, 0),
(self.digital_ofdm_cyclic_prefixer_0, 0))
self.connect((self.dvbt2_pilotgenerator_cc_0, 0),
(self.dvbt2_paprtr_cc_0, 0))
log.debug("top block initialized")
src = blocks.file_source(gr.sizeof_char, infile, True)
log.debug("source block initialized")
dvbt2_bbheader = dvbt2.bbheader_bb(frame_size, code_rate, input_mode, dvbt2.INBAND_OFF, fec_blocks, 4000000)
dvbt2_bbscrambler = dvbt2.bbscrambler_bb(frame_size, code_rate)
dvbt2_bch = dvbt2.bch_bb(frame_size, code_rate)
dvbt2_ldpc = dvbt2.ldpc_bb(frame_size, code_rate)
dvbt2_interleaver = dvbt2.interleaver_bb(frame_size, code_rate, constellation)
dvbt2_modulator = dvbt2.modulator_bc(frame_size, constellation, rotation)
dvbt2_cellinterleaver = dvbt2.cellinterleaver_cc(frame_size, constellation, fec_blocks, ti_blocks)
dvbt2_framemapper = dvbt2.framemapper_cc(frame_size, code_rate, constellation, rotation, fec_blocks, ti_blocks, carrier_mode, fft_size, guard_interval, l1_constellation, pilot_pattern, 2, data_symbols, papr_mode, version, mode, input_mode, dvbt2.RESERVED_OFF, dvbt2.L1_SCRAMBLED_OFF, dvbt2.INBAND_OFF)
dvbt2_freqinterleaver = dvbt2.freqinterleaver_cc(carrier_mode, fft_size, pilot_pattern, guard_interval, data_symbols, papr_mode, version, mode)
dvbt2_pilotgenerator = dvbt2.pilotgenerator_cc(carrier_mode, fft_size, pilot_pattern, guard_interval, data_symbols, papr_mode, version, mode, dvbt2.MISO_TX1, dvbt2.EQUALIZATION_ON, equalization_bandwidth, fftsize)
dvbt2_paprtr = dvbt2.paprtr_cc(carrier_mode, fft_size, pilot_pattern, guard_interval, data_symbols, papr_mode, version, papr_vclip, papr_iterations, fftsize)
digital_ofdm_cyclic_prefixer = digital.ofdm_cyclic_prefixer(fftsize, fftsize+(gi), 0, "")
dvbt2_p1insertion = dvbt2.p1insertion_cc(carrier_mode, fft_size, guard_interval, data_symbols, mode, dvbt2.SHOWLEVELS_OFF, 3.31)
blocks_multiply_const = blocks.multiply_const_vcc((0.2, ))
log.debug("DVB-T2 blocks initialized")
out = osmosdr.sink(args="numchan=1")
out.set_sample_rate(samp_rate)
out.set_center_freq(center_freq, 0)
out.set_freq_corr(0, 0)
out.set_gain(rf_gain, 0)
out.set_if_gain(if_gain, 0)
out.set_bb_gain(bb_gain, 0)
out.set_antenna("", 0)
out.set_bandwidth(bandwidth, 0)
log.debug("Output block initialized")
dvbt2_framemapper = dvbt2.framemapper_cc(
frame_size, code_rate, constellation, rotation, fec_blocks, ti_blocks,
carrier_mode, fft_size, guard_interval, l1_constellation,
pilot_pattern, 2, data_symbols, papr_mode, version, mode, input_mode,
dvbt2.RESERVED_OFF, dvbt2.L1_SCRAMBLED_OFF, dvbt2.INBAND_OFF)
dvbt2_freqinterleaver = dvbt2.freqinterleaver_cc(carrier_mode, fft_size,
pilot_pattern,
guard_interval,
data_symbols, papr_mode,
version, mode)
dvbt2_pilotgenerator = dvbt2.pilotgenerator_cc(
carrier_mode, fft_size, pilot_pattern, guard_interval, data_symbols,
papr_mode, version, mode, dvbt2.MISO_TX1, dvbt2.EQUALIZATION_ON,
equalization_bandwidth, fftsize)
dvbt2_paprtr = dvbt2.paprtr_cc(carrier_mode, fft_size, pilot_pattern,
guard_interval, data_symbols, papr_mode,
version, papr_vclip, papr_iterations,
fftsize)
digital_ofdm_cyclic_prefixer = digital.ofdm_cyclic_prefixer(
fftsize, fftsize + (gi), 0, "")
dvbt2_p1insertion = dvbt2.p1insertion_cc(carrier_mode, fft_size,
guard_interval, data_symbols,
mode, dvbt2.SHOWLEVELS_OFF, 3.31)
blocks_multiply_const = blocks.multiply_const_vcc((0.2, ))
log.debug("DVB-T2 blocks initialized")
out = osmosdr.sink(args="numchan=1")
out.set_sample_rate(samp_rate)
out.set_center_freq(center_freq, 0)
out.set_freq_corr(0, 0)
out.set_gain(rf_gain, 0)
out.set_if_gain(if_gain, 0)
def main(args):
nargs = len(args)
if nargs == 1:
infile = args[0]
outfile = None
elif nargs == 2:
infile = args[0]
outfile = args[1]
else:
sys.stderr.write("Usage: dvbt2-blade.py input_file [output_file]\n")
sys.exit(1)
version = dvbt2.VERSION_111
fft_size = dvbt2.FFTSIZE_4K
input_mode = dvbt2.INPUTMODE_NORMAL
frame_size = dvbt2.FECFRAME_NORMAL
code_rate = dvbt2.C2_3
data_symbols = 100
fec_blocks = 31
ti_blocks = 3
constellation = dvbt2.MOD_64QAM
rotation = dvbt2.ROTATION_ON
guard_interval = dvbt2.GI_1_32
mode = dvbt2.PREAMBLE_T2_SISO
carrier_mode = dvbt2.CARRIERS_NORMAL
pilot_pattern = dvbt2.PILOT_PP7
l1_constellation = dvbt2.L1_MOD_16QAM
papr_mode = dvbt2.PAPR_OFF
papr_vclip = 3.3
papr_iterations = 3
channel_mhz = 8
samp_rate = channel_mhz * 8000000.0 / 7
center_freq = 429000000
txvga1_gain = -8
txvga2_gain = 12
if channel_mhz == 10:
bandwidth = 10000000
equalization_bandwidth = dvbt2.BANDWIDTH_10_0_MHZ
elif channel_mhz == 8:
bandwidth = 8750000
equalization_bandwidth = dvbt2.BANDWIDTH_8_0_MHZ
elif channel_mhz == 7:
bandwidth = 7000000
equalization_bandwidth = dvbt2.BANDWIDTH_7_0_MHZ
elif channel_mhz == 6:
bandwidth = 5500000
equalization_bandwidth = dvbt2.BANDWIDTH_6_0_MHZ
elif channel_mhz == 5:
bandwidth = 5000000
equalization_bandwidth = dvbt2.BANDWIDTH_5_0_MHZ
else:
bandwidth = 1750000
equalization_bandwidth = dvbt2.BANDWIDTH_1_7_MHZ
if fft_size == dvbt2.FFTSIZE_1K:
fftsize = 1024
elif fft_size == dvbt2.FFTSIZE_2K:
fftsize = 2048
elif fft_size == dvbt2.FFTSIZE_4K:
fftsize = 4096
elif fft_size == dvbt2.FFTSIZE_8K:
fftsize = 8192
elif fft_size == dvbt2.FFTSIZE_8K_T2GI:
fftsize = 8192
elif fft_size == dvbt2.FFTSIZE_16K:
fftsize = 16384
elif fft_size == dvbt2.FFTSIZE_16K_T2GI:
fftsize = 16384
elif fft_size == dvbt2.FFTSIZE_32K:
fftsize = 32768
elif fft_size == dvbt2.FFTSIZE_32K_T2GI:
fftsize = 32768
if guard_interval == dvbt2.GI_1_32:
gi = fftsize / 32
elif guard_interval == dvbt2.GI_1_16:
gi = fftsize / 16
elif guard_interval == dvbt2.GI_1_8:
gi = fftsize / 8
elif guard_interval == dvbt2.GI_1_4:
gi = fftsize / 4
elif guard_interval == dvbt2.GI_1_128:
gi = fftsize / 128
elif guard_interval == dvbt2.GI_19_128:
gi = (fftsize * 19) / 128
elif guard_interval == dvbt2.GI_19_256:
gi = (fftsize * 19) / 256
tb = gr.top_block()
src = blocks.file_source(gr.sizeof_char, infile, True)
dvbt2_bbheader = dvbt2.bbheader_bb(frame_size, code_rate, input_mode,
dvbt2.INBAND_OFF, fec_blocks, 4000000)
dvbt2_bbscrambler = dvbt2.bbscrambler_bb(frame_size, code_rate)
dvbt2_bch = dvbt2.bch_bb(frame_size, code_rate)
dvbt2_ldpc = dvbt2.ldpc_bb(frame_size, code_rate)
dvbt2_interleaver = dvbt2.interleaver_bb(frame_size, code_rate,
constellation)
dvbt2_modulator = dvbt2.modulator_bc(frame_size, constellation, rotation)
dvbt2_cellinterleaver = dvbt2.cellinterleaver_cc(frame_size, constellation,
fec_blocks, ti_blocks)
dvbt2_framemapper = dvbt2.framemapper_cc(
frame_size, code_rate, constellation, rotation, fec_blocks, ti_blocks,
carrier_mode, fft_size, guard_interval, l1_constellation,
pilot_pattern, 2, data_symbols, papr_mode, version, mode, input_mode,
dvbt2.RESERVED_OFF, dvbt2.L1_SCRAMBLED_OFF, dvbt2.INBAND_OFF)
dvbt2_freqinterleaver = dvbt2.freqinterleaver_cc(carrier_mode, fft_size,
pilot_pattern,
guard_interval,
data_symbols, papr_mode,
version, mode)
dvbt2_pilotgenerator = dvbt2.pilotgenerator_cc(
carrier_mode, fft_size, pilot_pattern, guard_interval, data_symbols,
papr_mode, version, mode, dvbt2.MISO_TX1, dvbt2.EQUALIZATION_ON,
equalization_bandwidth, fftsize)
dvbt2_paprtr = dvbt2.paprtr_cc(carrier_mode, fft_size, pilot_pattern,
guard_interval, data_symbols, papr_mode,
version, papr_vclip, papr_iterations,
fftsize)
digital_ofdm_cyclic_prefixer = digital.ofdm_cyclic_prefixer(
fftsize, fftsize + (gi), 0, "")
dvbt2_p1insertion = dvbt2.p1insertion_cc(carrier_mode, fft_size,
guard_interval, data_symbols,
mode, dvbt2.SHOWLEVELS_OFF, 3.31)
blocks_multiply_const = blocks.multiply_const_vcc((0.2, ))
out = osmosdr.sink(args="bladerf=0,buffers=128,buflen=32768")
out.set_sample_rate(samp_rate)
out.set_center_freq(center_freq, 0)
out.set_freq_corr(0, 0)
out.set_gain(txvga2_gain, 0)
out.set_bb_gain(txvga1_gain, 0)
out.set_bandwidth(bandwidth, 0)
tb.connect(src, dvbt2_bbheader)
tb.connect(dvbt2_bbheader, dvbt2_bbscrambler)
tb.connect(dvbt2_bbscrambler, dvbt2_bch)
tb.connect(dvbt2_bch, dvbt2_ldpc)
tb.connect(dvbt2_ldpc, dvbt2_interleaver)
tb.connect(dvbt2_interleaver, dvbt2_modulator)
tb.connect(dvbt2_modulator, dvbt2_cellinterleaver)
tb.connect(dvbt2_cellinterleaver, dvbt2_framemapper)
tb.connect(dvbt2_framemapper, dvbt2_freqinterleaver)
tb.connect(dvbt2_freqinterleaver, dvbt2_pilotgenerator)
tb.connect(dvbt2_pilotgenerator, dvbt2_paprtr)
tb.connect(dvbt2_paprtr, digital_ofdm_cyclic_prefixer)
tb.connect(digital_ofdm_cyclic_prefixer, dvbt2_p1insertion)
tb.connect(dvbt2_p1insertion, blocks_multiply_const)
tb.connect(blocks_multiply_const, out)
if outfile:
dst = blocks.file_sink(gr.sizeof_gr_complex, outfile)
tb.connect(blocks_multiply_const, dst)
tb.run()
def main(args):
nargs = len(args)
if nargs == 1:
infile = args[0]
outfile = None
elif nargs == 2:
infile = args[0]
outfile = args[1]
else:
sys.stderr.write("Usage: dvbt2-blade.py input_file [output_file]\n");
sys.exit(1)
version = dvbt2.VERSION_111
fft_size = dvbt2.FFTSIZE_4K
input_mode = dvbt2.INPUTMODE_NORMAL
frame_size = dvbt2.FECFRAME_NORMAL
code_rate = dvbt2.C2_3
data_symbols = 100
fec_blocks = 31
ti_blocks = 3
constellation = dvbt2.MOD_64QAM
rotation = dvbt2.ROTATION_ON
guard_interval = dvbt2.GI_1_32
mode = dvbt2.PREAMBLE_T2_SISO
carrier_mode = dvbt2.CARRIERS_NORMAL
pilot_pattern = dvbt2.PILOT_PP7
l1_constellation = dvbt2.L1_MOD_16QAM
papr_mode = dvbt2.PAPR_OFF
papr_vclip = 3.3
papr_iterations = 3
channel_mhz = 8
samp_rate = channel_mhz * 8000000.0 / 7
center_freq = 429000000
txvga1_gain = -8
txvga2_gain = 12
if channel_mhz == 10:
bandwidth = 10000000
equalization_bandwidth = dvbt2.BANDWIDTH_10_0_MHZ
elif channel_mhz == 8:
bandwidth = 8750000
equalization_bandwidth = dvbt2.BANDWIDTH_8_0_MHZ
elif channel_mhz == 7:
bandwidth = 7000000
equalization_bandwidth = dvbt2.BANDWIDTH_7_0_MHZ
elif channel_mhz == 6:
bandwidth = 5500000
equalization_bandwidth = dvbt2.BANDWIDTH_6_0_MHZ
elif channel_mhz == 5:
bandwidth = 5000000
equalization_bandwidth = dvbt2.BANDWIDTH_5_0_MHZ
else:
bandwidth = 1750000
equalization_bandwidth = dvbt2.BANDWIDTH_1_7_MHZ
if fft_size == dvbt2.FFTSIZE_1K:
fftsize = 1024
elif fft_size == dvbt2.FFTSIZE_2K:
fftsize = 2048
elif fft_size == dvbt2.FFTSIZE_4K:
fftsize = 4096
elif fft_size == dvbt2.FFTSIZE_8K:
fftsize = 8192
elif fft_size == dvbt2.FFTSIZE_8K_T2GI:
fftsize = 8192
elif fft_size == dvbt2.FFTSIZE_16K:
fftsize = 16384
elif fft_size == dvbt2.FFTSIZE_16K_T2GI:
fftsize = 16384
elif fft_size == dvbt2.FFTSIZE_32K:
fftsize = 32768
elif fft_size == dvbt2.FFTSIZE_32K_T2GI:
fftsize = 32768
if guard_interval == dvbt2.GI_1_32:
gi = fftsize / 32
elif guard_interval == dvbt2.GI_1_16:
gi = fftsize / 16
elif guard_interval == dvbt2.GI_1_8:
gi = fftsize / 8
elif guard_interval == dvbt2.GI_1_4:
gi = fftsize / 4
elif guard_interval == dvbt2.GI_1_128:
gi = fftsize / 128
elif guard_interval == dvbt2.GI_19_128:
gi = (fftsize * 19) / 128
elif guard_interval == dvbt2.GI_19_256:
gi = (fftsize * 19) / 256
tb = gr.top_block()
src = blocks.file_source(gr.sizeof_char, infile, True)
dvbt2_bbheader = dvbt2.bbheader_bb(frame_size, code_rate, input_mode, dvbt2.INBAND_OFF, fec_blocks, 4000000)
dvbt2_bbscrambler = dvbt2.bbscrambler_bb(frame_size, code_rate)
dvbt2_bch = dvbt2.bch_bb(frame_size, code_rate)
dvbt2_ldpc = dvbt2.ldpc_bb(frame_size, code_rate)
dvbt2_interleaver = dvbt2.interleaver_bb(frame_size, code_rate, constellation)
dvbt2_modulator = dvbt2.modulator_bc(frame_size, constellation, rotation)
dvbt2_cellinterleaver = dvbt2.cellinterleaver_cc(frame_size, constellation, fec_blocks, ti_blocks)
dvbt2_framemapper = dvbt2.framemapper_cc(frame_size, code_rate, constellation, rotation, fec_blocks, ti_blocks, carrier_mode, fft_size, guard_interval, l1_constellation, pilot_pattern, 2, data_symbols, papr_mode, version, mode, input_mode, dvbt2.RESERVED_OFF, dvbt2.L1_SCRAMBLED_OFF, dvbt2.INBAND_OFF)
dvbt2_freqinterleaver = dvbt2.freqinterleaver_cc(carrier_mode, fft_size, pilot_pattern, guard_interval, data_symbols, papr_mode, version, mode)
dvbt2_pilotgenerator = dvbt2.pilotgenerator_cc(carrier_mode, fft_size, pilot_pattern, guard_interval, data_symbols, papr_mode, version, mode, dvbt2.MISO_TX1, dvbt2.EQUALIZATION_ON, equalization_bandwidth, fftsize)
dvbt2_paprtr = dvbt2.paprtr_cc(carrier_mode, fft_size, pilot_pattern, guard_interval, data_symbols, papr_mode, version, papr_vclip, papr_iterations, fftsize)
digital_ofdm_cyclic_prefixer = digital.ofdm_cyclic_prefixer(fftsize, fftsize+(gi), 0, "")
dvbt2_p1insertion = dvbt2.p1insertion_cc(carrier_mode, fft_size, guard_interval, data_symbols, mode, dvbt2.SHOWLEVELS_OFF, 3.31)
blocks_multiply_const = blocks.multiply_const_vcc((0.2, ))
out = osmosdr.sink(args="bladerf=0,buffers=128,buflen=32768")
out.set_sample_rate(samp_rate)
out.set_center_freq(center_freq, 0)
out.set_freq_corr(0, 0)
out.set_gain(txvga2_gain, 0)
out.set_bb_gain(txvga1_gain, 0)
out.set_bandwidth(bandwidth, 0)
tb.connect(src, dvbt2_bbheader)
tb.connect(dvbt2_bbheader, dvbt2_bbscrambler)
tb.connect(dvbt2_bbscrambler, dvbt2_bch)
tb.connect(dvbt2_bch, dvbt2_ldpc)
tb.connect(dvbt2_ldpc, dvbt2_interleaver)
tb.connect(dvbt2_interleaver, dvbt2_modulator)
tb.connect(dvbt2_modulator, dvbt2_cellinterleaver)
tb.connect(dvbt2_cellinterleaver, dvbt2_framemapper)
tb.connect(dvbt2_framemapper, dvbt2_freqinterleaver)
tb.connect(dvbt2_freqinterleaver, dvbt2_pilotgenerator)
tb.connect(dvbt2_pilotgenerator, dvbt2_paprtr)
tb.connect(dvbt2_paprtr, digital_ofdm_cyclic_prefixer)
tb.connect(digital_ofdm_cyclic_prefixer, dvbt2_p1insertion)
tb.connect(dvbt2_p1insertion, blocks_multiply_const)
tb.connect(blocks_multiply_const, out)
if outfile:
dst = blocks.file_sink(gr.sizeof_gr_complex, outfile)
tb.connect(blocks_multiply_const, dst)
tb.run()
def main(args):
nargs = len(args)
if nargs == 1:
infile = args[0]
outfile = None
elif nargs == 2:
infile = args[0]
outfile = args[1]
else:
sys.stderr.write("Usage: dvbt2-hackrf.py input_file [output_file]\n")
sys.exit(1)
try:
shmaxfile = open('/proc/sys/kernel/shmmax', 'r')
shmax = int(shmaxfile.readline())
if shmax < 1024 * 1024 * 1024:
print("")
print(
"In order to run this, the maximum size of shared memory must be > %d"
% (1024 * 1024 * 1024))
print("your current maximum is at %d" % (shmax))
print("please run the following command to fix this:")
print("")
print(
" # sudo sh -c 'echo $(( 1024 * 1024 * 1024 )) > /proc/sys/kernel/shmmax'"
)
print("")
sys.exit(1)
except Exception as e:
print(
"!! Warning: Can't read shared memory maxsize (%s), \n your maximum might be to low to run this\n"
% e)
## Config Options
# DVB-T2 Parameters
version = dvbt2.VERSION_111
fft_size = dvbt2.FFTSIZE_4K
input_mode = dvbt2.INPUTMODE_NORMAL
frame_size = dvbt2.FECFRAME_NORMAL
code_rate = dvbt2.C2_3
data_symbols = 100
fec_blocks = 31
ti_blocks = 3
constellation = dvbt2.MOD_64QAM
rotation = dvbt2.ROTATION_ON
guard_interval = dvbt2.GI_1_32
mode = dvbt2.PREAMBLE_T2_SISO
carrier_mode = dvbt2.CARRIERS_NORMAL
pilot_pattern = dvbt2.PILOT_PP7
l1_constellation = dvbt2.L1_MOD_16QAM
papr_mode = dvbt2.PAPR_OFF
papr_vclip = 3.3
papr_iterations = 3
channel_mhz = 8
# Hack-RF Parameters
center_freq = 474000000
rf_gain = 14
if_gain = 20
bb_gain = 20
##
samp_rate = channel_mhz * 8000000.0 / 7
if channel_mhz == 10:
bandwidth = 10000000
equalization_bandwidth = dvbt2.BANDWIDTH_10_0_MHZ
elif channel_mhz == 8:
bandwidth = 8750000
equalization_bandwidth = dvbt2.BANDWIDTH_8_0_MHZ
elif channel_mhz == 7:
bandwidth = 7000000
equalization_bandwidth = dvbt2.BANDWIDTH_7_0_MHZ
elif channel_mhz == 6:
bandwidth = 5500000
equalization_bandwidth = dvbt2.BANDWIDTH_6_0_MHZ
elif channel_mhz == 5:
bandwidth = 5000000
equalization_bandwidth = dvbt2.BANDWIDTH_5_0_MHZ
else:
bandwidth = 1750000
equalization_bandwidth = dvbt2.BANDWIDTH_1_7_MHZ
if fft_size == dvbt2.FFTSIZE_1K:
fftsize = 1024
elif fft_size == dvbt2.FFTSIZE_2K:
fftsize = 2048
elif fft_size == dvbt2.FFTSIZE_4K:
fftsize = 4096
elif fft_size == dvbt2.FFTSIZE_8K:
fftsize = 8192
elif fft_size == dvbt2.FFTSIZE_8K_T2GI:
fftsize = 8192
elif fft_size == dvbt2.FFTSIZE_16K:
fftsize = 16384
elif fft_size == dvbt2.FFTSIZE_16K_T2GI:
fftsize = 16384
elif fft_size == dvbt2.FFTSIZE_32K:
fftsize = 32768
elif fft_size == dvbt2.FFTSIZE_32K_T2GI:
fftsize = 32768
if guard_interval == dvbt2.GI_1_32:
gi = fftsize / 32
elif guard_interval == dvbt2.GI_1_16:
gi = fftsize / 16
elif guard_interval == dvbt2.GI_1_8:
gi = fftsize / 8
elif guard_interval == dvbt2.GI_1_4:
gi = fftsize / 4
elif guard_interval == dvbt2.GI_1_128:
gi = fftsize / 128
elif guard_interval == dvbt2.GI_19_128:
gi = (fftsize * 19) / 128
elif guard_interval == dvbt2.GI_19_256:
gi = (fftsize * 19) / 256
log = gr.logger("dvbt2-hackrf")
log.set_level("DEBUG")
log.debug("logger initilized")
tb = gr.top_block()
log.debug("top block initialized")
src = blocks.file_source(gr.sizeof_char, infile, True)
log.debug("source block initialized")
dvbt2_bbheader = dvbt2.bbheader_bb(frame_size, code_rate, input_mode,
dvbt2.INBAND_OFF, fec_blocks, 4000000)
dvbt2_bbscrambler = dvbt2.bbscrambler_bb(frame_size, code_rate)
dvbt2_bch = dvbt2.bch_bb(frame_size, code_rate)
dvbt2_ldpc = dvbt2.ldpc_bb(frame_size, code_rate)
dvbt2_interleaver = dvbt2.interleaver_bb(frame_size, code_rate,
constellation)
dvbt2_modulator = dvbt2.modulator_bc(frame_size, constellation, rotation)
dvbt2_cellinterleaver = dvbt2.cellinterleaver_cc(frame_size, constellation,
fec_blocks, ti_blocks)
dvbt2_framemapper = dvbt2.framemapper_cc(
frame_size, code_rate, constellation, rotation, fec_blocks, ti_blocks,
carrier_mode, fft_size, guard_interval, l1_constellation,
pilot_pattern, 2, data_symbols, papr_mode, version, mode, input_mode,
dvbt2.RESERVED_OFF, dvbt2.L1_SCRAMBLED_OFF, dvbt2.INBAND_OFF)
dvbt2_freqinterleaver = dvbt2.freqinterleaver_cc(carrier_mode, fft_size,
pilot_pattern,
guard_interval,
data_symbols, papr_mode,
version, mode)
dvbt2_pilotgenerator = dvbt2.pilotgenerator_cc(
carrier_mode, fft_size, pilot_pattern, guard_interval, data_symbols,
papr_mode, version, mode, dvbt2.MISO_TX1, dvbt2.EQUALIZATION_ON,
equalization_bandwidth, fftsize)
dvbt2_paprtr = dvbt2.paprtr_cc(carrier_mode, fft_size, pilot_pattern,
guard_interval, data_symbols, papr_mode,
version, papr_vclip, papr_iterations,
fftsize)
digital_ofdm_cyclic_prefixer = digital.ofdm_cyclic_prefixer(
fftsize, fftsize + (gi), 0, "")
dvbt2_p1insertion = dvbt2.p1insertion_cc(carrier_mode, fft_size,
guard_interval, data_symbols,
mode, dvbt2.SHOWLEVELS_OFF, 3.31)
blocks_multiply_const = blocks.multiply_const_vcc((0.2, ))
log.debug("DVB-T2 blocks initialized")
out = osmosdr.sink(args="numchan=1")
out.set_sample_rate(samp_rate)
out.set_center_freq(center_freq, 0)
out.set_freq_corr(0, 0)
out.set_gain(rf_gain, 0)
out.set_if_gain(if_gain, 0)
out.set_bb_gain(bb_gain, 0)
out.set_antenna("", 0)
out.set_bandwidth(bandwidth, 0)
log.debug("Output block initialized")
tb.connect(src, dvbt2_bbheader)
tb.connect(dvbt2_bbheader, dvbt2_bbscrambler)
tb.connect(dvbt2_bbscrambler, dvbt2_bch)
tb.connect(dvbt2_bch, dvbt2_ldpc)
tb.connect(dvbt2_ldpc, dvbt2_interleaver)
tb.connect(dvbt2_interleaver, dvbt2_modulator)
tb.connect(dvbt2_modulator, dvbt2_cellinterleaver)
tb.connect(dvbt2_cellinterleaver, dvbt2_framemapper)
tb.connect(dvbt2_framemapper, dvbt2_freqinterleaver)
tb.connect(dvbt2_freqinterleaver, dvbt2_pilotgenerator)
tb.connect(dvbt2_pilotgenerator, dvbt2_paprtr)
tb.connect(dvbt2_paprtr, digital_ofdm_cyclic_prefixer)
tb.connect(digital_ofdm_cyclic_prefixer, dvbt2_p1insertion)
tb.connect(dvbt2_p1insertion, blocks_multiply_const)
tb.connect(blocks_multiply_const, out)
log.debug("all blocks connected")
if outfile:
dst = blocks.file_sink(gr.sizeof_gr_complex, outfile)
tb.connect(blocks_multiply_const, dst)
log.debug("running gnuradio")
tb.run()
