Exemplo n.º 1
0
    def __init__(self):
        grc_wxgui.top_block_gui.__init__(self, title="Dvbs Tx")

        ##################################################
        # Variables
        ##################################################
        self.symbol_rate = symbol_rate = 4500000
        self.samp_rate = samp_rate = symbol_rate * 2
        self.rrc_taps = rrc_taps = 20

        ##################################################
        # Blocks
        ##################################################
        self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
        	self.GetWin(),
        	baseband_freq=435000000,
        	y_per_div=10,
        	y_divs=10,
        	ref_level=0,
        	ref_scale=2.0,
        	sample_rate=samp_rate,
        	fft_size=1024,
        	fft_rate=15,
        	average=True,
        	avg_alpha=None,
        	title="FFT Plot",
        	peak_hold=False,
        )
        self.Add(self.wxgui_fftsink2_0.win)
        self.trellis_encoder_xx_0 = trellis.encoder_bb(trellis.fsm(1, 2, (0171, 0133)), 0)
        self.osmosdr_sink_0 = osmosdr.sink( args="numchan=" + str(1) + " " + "" )
        self.osmosdr_sink_0.set_sample_rate(samp_rate)
        self.osmosdr_sink_0.set_center_freq(435e6, 0)
        self.osmosdr_sink_0.set_freq_corr(0, 0)
        self.osmosdr_sink_0.set_gain(2, 0)
        self.osmosdr_sink_0.set_if_gain(0, 0)
        self.osmosdr_sink_0.set_bb_gain(-4, 0)
        self.osmosdr_sink_0.set_antenna("", 0)
        self.osmosdr_sink_0.set_bandwidth(6000000, 0)
          
        self.fft_filter_xxx_0 = filter.fft_filter_ccc(1, (firdes.root_raised_cosine(1.79, samp_rate, samp_rate/2, 0.35, rrc_taps)), 1)
        self.fft_filter_xxx_0.declare_sample_delay(0)
        self.dvbs_reed_solomon_enc_bb_0 = dvbs.reed_solomon_enc_bb()
        self.dvbs_randomizer_bb_0 = dvbs.randomizer_bb()
        self.dvbs_puncture_bb_0 = dvbs.puncture_bb(dvbs.C1_2)
        self.dvbs_modulator_bc_0 = dvbs.modulator_bc()
        self.dvbs_interleaver_bb_0 = dvbs.interleaver_bb()
        self.blocks_unpack_k_bits_bb_0 = blocks.unpack_k_bits_bb(2)
        self.blocks_packed_to_unpacked_xx_0 = blocks.packed_to_unpacked_bb(1, gr.GR_MSB_FIRST)
        self.blocks_pack_k_bits_bb_0 = blocks.pack_k_bits_bb(2)
        self.blocks_file_source_0 = blocks.file_source(gr.sizeof_char*1, "/home/re/xfer/adv.ts", False)

        ##################################################
        # Connections
        ##################################################
        self.connect((self.blocks_file_source_0, 0), (self.dvbs_randomizer_bb_0, 0))
        self.connect((self.dvbs_randomizer_bb_0, 0), (self.dvbs_reed_solomon_enc_bb_0, 0))
        self.connect((self.dvbs_reed_solomon_enc_bb_0, 0), (self.dvbs_interleaver_bb_0, 0))
        self.connect((self.dvbs_interleaver_bb_0, 0), (self.blocks_packed_to_unpacked_xx_0, 0))
        self.connect((self.blocks_packed_to_unpacked_xx_0, 0), (self.trellis_encoder_xx_0, 0))
        self.connect((self.trellis_encoder_xx_0, 0), (self.blocks_unpack_k_bits_bb_0, 0))
        self.connect((self.blocks_unpack_k_bits_bb_0, 0), (self.dvbs_puncture_bb_0, 0))
        self.connect((self.dvbs_puncture_bb_0, 0), (self.blocks_pack_k_bits_bb_0, 0))
        self.connect((self.dvbs_modulator_bc_0, 0), (self.fft_filter_xxx_0, 0))
        self.connect((self.blocks_pack_k_bits_bb_0, 0), (self.dvbs_modulator_bc_0, 0))
        self.connect((self.fft_filter_xxx_0, 0), (self.osmosdr_sink_0, 0))
        self.connect((self.fft_filter_xxx_0, 0), (self.wxgui_fftsink2_0, 0))
Exemplo n.º 2
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: dvbs-blade.py input_file [output_file]\n")
        sys.exit(1)

    symbol_rate = 4500000
    samp_rate = symbol_rate * 2
    code_rate = dvbs.C1_2
    rrc_taps = 20
    center_freq = 435000000
    txvga1_gain = -4
    txvga2_gain = 1
    bandwidth = 6000000

    tb = gr.top_block()

    src = blocks.file_source(gr.sizeof_char, infile, True)

    dvbs_randomizer = dvbs.randomizer_bb()
    dvbs_reed_solomon_enc = dvbs.reed_solomon_enc_bb()
    dvbs_interleaver = dvbs.interleaver_bb()
    blocks_packed_to_unpacked = blocks.packed_to_unpacked_bb(
        1, gr.GR_MSB_FIRST)
    trellis_encoder = trellis.encoder_bb(trellis.fsm(1, 2, (0171, 0133)), 0)
    blocks_unpack_k_bits = blocks.unpack_k_bits_bb(2)
    dvbs_puncture = dvbs.puncture_bb(code_rate)
    blocks_pack_k_bits = blocks.pack_k_bits_bb(2)
    digital_chunks_to_symbols = digital.chunks_to_symbols_bc(([
        complex(0.70710678, 0.70710678),
        complex(0.70710678, -0.70710678),
        complex(-0.70710678, 0.70710678),
        complex(-0.70710678, -0.70710678)
    ]), 1)
    interp_fir_filter = filter.interp_fir_filter_ccc(
        2, (firdes.root_raised_cosine(1.79, samp_rate, samp_rate / 2, 0.35,
                                      rrc_taps)))
    interp_fir_filter.declare_sample_delay(0)

    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, dvbs_randomizer)
    tb.connect(dvbs_randomizer, dvbs_reed_solomon_enc)
    tb.connect(dvbs_reed_solomon_enc, dvbs_interleaver)
    tb.connect(dvbs_interleaver, blocks_packed_to_unpacked)
    tb.connect(blocks_packed_to_unpacked, trellis_encoder)
    tb.connect(trellis_encoder, blocks_unpack_k_bits)
    tb.connect(blocks_unpack_k_bits, dvbs_puncture)
    tb.connect(dvbs_puncture, blocks_pack_k_bits)
    tb.connect(blocks_pack_k_bits, digital_chunks_to_symbols)
    tb.connect(digital_chunks_to_symbols, interp_fir_filter)
    tb.connect(interp_fir_filter, out)

    if outfile:
        dst = blocks.file_sink(gr.sizeof_gr_complex, outfile)
        tb.connect(interp_fir_filter, dst)

    tb.run()
Exemplo n.º 3
0
    def __init__(self):
        grc_wxgui.top_block_gui.__init__(self, title="Dvbs Tx")
        _icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
        self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))

        ##################################################
        # Variables
        ##################################################
        self.symbol_rate = symbol_rate = 1000000
        self.username = username = os.environ.get('USER')
        self.samp_rate = samp_rate = symbol_rate * 2
        self.rrc_taps = rrc_taps = 20
        self.frequency = frequency = 970e6

        ##################################################
        # Blocks
        ##################################################
        self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
            self.GetWin(),
            baseband_freq=frequency,
            y_per_div=10,
            y_divs=10,
            ref_level=0,
            ref_scale=2.0,
            sample_rate=samp_rate,
            fft_size=1024,
            fft_rate=15,
            average=True,
            avg_alpha=None,
            title='FFT Plot',
            peak_hold=False,
        )
        self.Add(self.wxgui_fftsink2_0.win)
        self.trellis_encoder_xx_0 = trellis.encoder_bb(
            trellis.fsm(1, 2,
                        (0171, 0133)), 0, 0) if False else trellis.encoder_bb(
                            trellis.fsm(1, 2, (0171, 0133)), 0)
        self._symbol_rate_chooser = forms.radio_buttons(
            parent=self.GetWin(),
            value=self.symbol_rate,
            callback=self.set_symbol_rate,
            label='symbol_rate',
            choices=[333000, 500000, 1000000, 1200000, 1500000],
            labels=["333kS/s", "500 kS/s", "1000kS/s", "1200kS/s", "1500kS/s"],
            style=wx.RA_HORIZONTAL,
        )
        self.Add(self._symbol_rate_chooser)
        self.pluto_sink_0 = iio.pluto_sink('', int(frequency), int(samp_rate),
                                           int(9000000), 0x8000, False, 0.0,
                                           '', True)
        self.fft_filter_xxx_0 = filter.fft_filter_ccc(
            1, (firdes.root_raised_cosine(1.79, samp_rate, samp_rate / 2, 0.35,
                                          rrc_taps)), 1)
        self.fft_filter_xxx_0.declare_sample_delay(0)
        self.dvbs_reed_solomon_enc_bb_0 = dvbs.reed_solomon_enc_bb()
        self.dvbs_randomizer_bb_0 = dvbs.randomizer_bb()
        self.dvbs_puncture_bb_0 = dvbs.puncture_bb(dvbs.C1_2)
        self.dvbs_modulator_bc_0 = dvbs.modulator_bc()
        self.dvbs_interleaver_bb_0 = dvbs.interleaver_bb()
        self.blocks_unpack_k_bits_bb_0 = blocks.unpack_k_bits_bb(2)
        self.blocks_packed_to_unpacked_xx_0 = blocks.packed_to_unpacked_bb(
            1, gr.GR_MSB_FIRST)
        self.blocks_pack_k_bits_bb_0 = blocks.pack_k_bits_bb(2)
        self.blocks_file_source_1 = blocks.file_source(
            gr.sizeof_char * 1,
            "/media/" + username + "/PlutoSDR/MPEG2-lalinea.ts", True)

        ##################################################
        # Connections
        ##################################################
        self.connect((self.blocks_file_source_1, 0),
                     (self.dvbs_randomizer_bb_0, 0))
        self.connect((self.blocks_pack_k_bits_bb_0, 0),
                     (self.dvbs_modulator_bc_0, 0))
        self.connect((self.blocks_packed_to_unpacked_xx_0, 0),
                     (self.trellis_encoder_xx_0, 0))
        self.connect((self.blocks_unpack_k_bits_bb_0, 0),
                     (self.dvbs_puncture_bb_0, 0))
        self.connect((self.dvbs_interleaver_bb_0, 0),
                     (self.blocks_packed_to_unpacked_xx_0, 0))
        self.connect((self.dvbs_modulator_bc_0, 0), (self.fft_filter_xxx_0, 0))
        self.connect((self.dvbs_puncture_bb_0, 0),
                     (self.blocks_pack_k_bits_bb_0, 0))
        self.connect((self.dvbs_randomizer_bb_0, 0),
                     (self.dvbs_reed_solomon_enc_bb_0, 0))
        self.connect((self.dvbs_reed_solomon_enc_bb_0, 0),
                     (self.dvbs_interleaver_bb_0, 0))
        self.connect((self.fft_filter_xxx_0, 0), (self.pluto_sink_0, 0))
        self.connect((self.fft_filter_xxx_0, 0), (self.wxgui_fftsink2_0, 0))
        self.connect((self.trellis_encoder_xx_0, 0),
                     (self.blocks_unpack_k_bits_bb_0, 0))
Exemplo n.º 4
0
    def __init__(self):
        grc_wxgui.top_block_gui.__init__(self, title="Dvbs Tx")

        ##################################################
        # Variables
        ##################################################
        self.symbol_rate = symbol_rate = 4500000
        self.samp_rate = samp_rate = symbol_rate * 2
        self.rrc_taps = rrc_taps = 20

        ##################################################
        # Blocks
        ##################################################
        self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
        	self.GetWin(),
        	baseband_freq=435000000,
        	y_per_div=10,
        	y_divs=10,
        	ref_level=0,
        	ref_scale=2.0,
        	sample_rate=samp_rate,
        	fft_size=1024,
        	fft_rate=15,
        	average=True,
        	avg_alpha=None,
        	title="FFT Plot",
        	peak_hold=False,
        )
        self.Add(self.wxgui_fftsink2_0.win)
        self.trellis_encoder_xx_0 = trellis.encoder_bb(trellis.fsm(1, 2, (0171, 0133)), 0)
        self.osmosdr_sink_0 = osmosdr.sink( args="numchan=" + str(1) + " " + "" )
        self.osmosdr_sink_0.set_sample_rate(samp_rate)
        self.osmosdr_sink_0.set_center_freq(435e6, 0)
        self.osmosdr_sink_0.set_freq_corr(0, 0)
        self.osmosdr_sink_0.set_gain(2, 0)
        self.osmosdr_sink_0.set_if_gain(0, 0)
        self.osmosdr_sink_0.set_bb_gain(-4, 0)
        self.osmosdr_sink_0.set_antenna("", 0)
        self.osmosdr_sink_0.set_bandwidth(6000000, 0)
          
        self.interp_fir_filter_xxx_0 = filter.interp_fir_filter_ccc(2, (firdes.root_raised_cosine(1.79, samp_rate, samp_rate/2, 0.35, rrc_taps)))
        self.interp_fir_filter_xxx_0.declare_sample_delay(0)
        self.dvbs_reed_solomon_enc_bb_0 = dvbs.reed_solomon_enc_bb()
        self.dvbs_randomizer_bb_0 = dvbs.randomizer_bb()
        self.dvbs_puncture_bb_0 = dvbs.puncture_bb(dvbs.C1_2)
        self.dvbs_interleaver_bb_0 = dvbs.interleaver_bb()
        self.digital_chunks_to_symbols_xx_0 = digital.chunks_to_symbols_bc(([complex(0.70710678,0.70710678), complex(0.70710678,-0.70710678), complex(-0.70710678,0.70710678), complex(-0.70710678,-0.70710678)]), 1)
        self.blocks_unpack_k_bits_bb_0 = blocks.unpack_k_bits_bb(2)
        self.blocks_packed_to_unpacked_xx_0 = blocks.packed_to_unpacked_bb(1, gr.GR_MSB_FIRST)
        self.blocks_pack_k_bits_bb_0 = blocks.pack_k_bits_bb(2)
        self.blocks_file_source_0 = blocks.file_source(gr.sizeof_char*1, "/home/re/xfer/adv.ts", False)

        ##################################################
        # Connections
        ##################################################
        self.connect((self.blocks_file_source_0, 0), (self.dvbs_randomizer_bb_0, 0))
        self.connect((self.dvbs_randomizer_bb_0, 0), (self.dvbs_reed_solomon_enc_bb_0, 0))
        self.connect((self.dvbs_reed_solomon_enc_bb_0, 0), (self.dvbs_interleaver_bb_0, 0))
        self.connect((self.dvbs_interleaver_bb_0, 0), (self.blocks_packed_to_unpacked_xx_0, 0))
        self.connect((self.blocks_packed_to_unpacked_xx_0, 0), (self.trellis_encoder_xx_0, 0))
        self.connect((self.interp_fir_filter_xxx_0, 0), (self.wxgui_fftsink2_0, 0))
        self.connect((self.interp_fir_filter_xxx_0, 0), (self.osmosdr_sink_0, 0))
        self.connect((self.trellis_encoder_xx_0, 0), (self.blocks_unpack_k_bits_bb_0, 0))
        self.connect((self.blocks_unpack_k_bits_bb_0, 0), (self.dvbs_puncture_bb_0, 0))
        self.connect((self.dvbs_puncture_bb_0, 0), (self.blocks_pack_k_bits_bb_0, 0))
        self.connect((self.blocks_pack_k_bits_bb_0, 0), (self.digital_chunks_to_symbols_xx_0, 0))
        self.connect((self.digital_chunks_to_symbols_xx_0, 0), (self.interp_fir_filter_xxx_0, 0))
Exemplo n.º 5
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: dvbs-blade.py input_file [output_file]\n")
        sys.exit(1)

    symbol_rate = 4500000
    samp_rate = symbol_rate * 2
    code_rate = dvbs.C1_2
    rrc_taps = 20
    center_freq = 435000000
    txvga1_gain = -4
    txvga2_gain = 1
    bandwidth = 6000000

    tb = gr.top_block()

    src = blocks.file_source(gr.sizeof_char, infile, True)

    dvbs_randomizer = dvbs.randomizer_bb()
    dvbs_reed_solomon_enc = dvbs.reed_solomon_enc_bb()
    dvbs_interleaver = dvbs.interleaver_bb()
    blocks_packed_to_unpacked = blocks.packed_to_unpacked_bb(1, gr.GR_MSB_FIRST)
    trellis_encoder = trellis.encoder_bb(trellis.fsm(1, 2, (0171, 0133)), 0)
    blocks_unpack_k_bits = blocks.unpack_k_bits_bb(2)
    dvbs_puncture = dvbs.puncture_bb(code_rate)
    blocks_pack_k_bits = blocks.pack_k_bits_bb(2)
    dvbs_modulator = dvbs.modulator_bc()
    fft_filter = filter.fft_filter_ccc(
        1, (firdes.root_raised_cosine(1.79, samp_rate, samp_rate / 2, 0.35, rrc_taps)), 1
    )
    fft_filter.declare_sample_delay(0)

    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, dvbs_randomizer)
    tb.connect(dvbs_randomizer, dvbs_reed_solomon_enc)
    tb.connect(dvbs_reed_solomon_enc, dvbs_interleaver)
    tb.connect(dvbs_interleaver, blocks_packed_to_unpacked)
    tb.connect(blocks_packed_to_unpacked, trellis_encoder)
    tb.connect(trellis_encoder, blocks_unpack_k_bits)
    tb.connect(blocks_unpack_k_bits, dvbs_puncture)
    tb.connect(dvbs_puncture, blocks_pack_k_bits)
    tb.connect(blocks_pack_k_bits, dvbs_modulator)
    tb.connect(dvbs_modulator, fft_filter)
    tb.connect(fft_filter, out)

    if outfile:
        dst = blocks.file_sink(gr.sizeof_gr_complex, outfile)
        tb.connect(fft_filter, dst)

    tb.run()