def test_001_t(self):
        np.set_printoptions(precision=2)
        n_frames = 3
        alpha = .5
        active = 8
        M = 8
        K = 16
        L = 2
        cp_len = 8
        cs_len = 4
        ramp_len = 4
        block_len = M * K
        window_len = get_window_len(cp_len, M, K, cs_len)
        taps = get_frequency_domain_filter('rrc', alpha, M, K, L)
        taps /= np.sqrt(calculate_signal_energy(taps) / M)
        window_taps = get_raised_cosine_ramp(ramp_len, window_len)
        pn_symbols = get_random_qpsk(K)
        H_preamble = get_frequency_domain_filter('rrc', alpha, 2, K, L)
        preamble = get_sync_symbol(pn_symbols, H_preamble, K, L, cp_len,
                                   ramp_len)[0]
        smap = get_subcarrier_map(K, active, dc_free=True)

        ref = np.array([], dtype=complex)
        data = np.array([], dtype=complex)
        frame_len = window_len + len(preamble)
        frame_gap = np.zeros(frame_len)
        for i in range(n_frames):
            d = get_random_qpsk(active * M)
            dd = map_to_waveform_resources(d, active, K, smap)
            D = get_data_matrix(dd, K, group_by_subcarrier=False)
            b = gfdm_modulate_block(D, taps, M, K, L, False)
            b = add_cyclic_starfix(b, cp_len, cs_len)
            b = pinch_block(b, window_taps)
            ref = np.concatenate((ref, frame_gap, preamble, b))
            data = np.concatenate((data, d))

        src = blocks.vector_source_c(data)
        mapper = gfdm.resource_mapper_cc(active, K, M, smap, True)
        mod = gfdm.simple_modulator_cc(M, K, L, taps)
        prefixer = gfdm.cyclic_prefixer_cc(block_len, cp_len, cs_len, ramp_len,
                                           window_taps)
        preambler = blocks.vector_insert_c(preamble,
                                           window_len + len(preamble), 0)
        gapper = blocks.vector_insert_c(frame_gap, frame_len + len(frame_gap),
                                        0)
        dst = blocks.vector_sink_c()

        self.tb.connect(src, mapper, mod, prefixer, preambler, gapper, dst)
        # self.tb.connect(src, mapper, dst)
        self.tb.run()
        res = np.array(dst.data())[0:len(ref)]

        self.assertComplexTuplesAlmostEqual(ref, res, 5)
    def test_001_t(self):
        np.set_printoptions(precision=2)
        n_frames = 3
        alpha = .5
        active = 8
        M = 8
        K = 16
        L = 2
        cp_len = 8
        cs_len = 4
        ramp_len = 4
        block_len = M * K
        window_len = get_window_len(cp_len, M, K, cs_len)
        taps = get_frequency_domain_filter('rrc', alpha, M, K, L)
        taps /= np.sqrt(calculate_signal_energy(taps) / M)
        window_taps = get_raised_cosine_ramp(ramp_len, window_len)
        pn_symbols = get_random_qpsk(K)
        H_preamble = get_frequency_domain_filter('rrc', alpha, 2, K, L)
        preamble = get_sync_symbol(pn_symbols, H_preamble, K, L, cp_len, ramp_len)[0]
        smap = get_subcarrier_map(K, active, dc_free=True)

        ref = np.array([], dtype=np.complex)
        data = np.array([], dtype=np.complex)
        frame_len = window_len + len(preamble)
        frame_gap = np.zeros(frame_len)
        for i in range(n_frames):
            d = get_random_qpsk(active * M)
            dd = map_to_waveform_resources(d, active, K, smap)
            D = get_data_matrix(dd, K, group_by_subcarrier=False)
            b = gfdm_modulate_block(D, taps, M, K, L, False)
            b = add_cyclic_starfix(b, cp_len, cs_len)
            b = pinch_block(b, window_taps)
            ref = np.concatenate((ref, frame_gap, preamble, b))
            data = np.concatenate((data, d))

        src = blocks.vector_source_c(data)
        mapper = gfdm.resource_mapper_cc(active, K, M, smap, True)
        mod = gfdm.simple_modulator_cc(M, K, L, taps)
        prefixer = gfdm.cyclic_prefixer_cc(block_len, cp_len, cs_len, ramp_len, window_taps)
        preambler = blocks.vector_insert_c(preamble, window_len + len(preamble), 0)
        gapper = blocks.vector_insert_c(frame_gap, frame_len + len(frame_gap), 0)
        dst = blocks.vector_sink_c()

        self.tb.connect(src, mapper, mod, prefixer, preambler, gapper, dst)
        # self.tb.connect(src, mapper, dst)
        self.tb.run()
        res = np.array(dst.data())[0:len(ref)]

        self.assertComplexTuplesAlmostEqual(ref, res, 5)
    def __init__(self, M, syms_per_frame, sel_preamble, zero_pads, extra_pad=False):
        gr.hier_block2.__init__(self,
            "insert_preamble_vcvc",
            gr.io_signature(1, 1, gr.sizeof_gr_complex*M),
            gr.io_signature(1, 1, gr.sizeof_gr_complex*M),
        )

        # Parameters
        self.M = M
        self.syms_per_frame = syms_per_frame;
        if sel_preamble == 0: # standard one vector center preamble [1,-j,-1,j]
            self.center_preamble = center_preamble = [1, -1j, -1, 1j]*((int)(M/4))
        elif sel_preamble == 1: # standard preamble with triple repetition
            self.center_preamble = center_preamble = [1, -1j, -1, 1j]*((int)(M/4))*3 #[1/math.sqrt(3), -1j/math.sqrt(3), -1/math.sqrt(3), 1j/math.sqrt(3)]*((int)(M/4))*3
        elif sel_preamble ==2: # IAM-R preamble [1, -1,-1, 1]
            self.center_preamble = center_preamble = [1, -1, -1, 1]*((int)(M/4))
        else: # standard one vector center preamble [1,-j,-1,j]
            self.center_preamble = center_preamble = [1, -1j, -1, 1j]*((int)(M/4))

        self.preamble = preamble = [0]*M*zero_pads+center_preamble+[0]*M*zero_pads

        if extra_pad:
            self.preamble = preamble = preamble + [0]*M

        # Variables
        self.preamble_length = len(preamble)

        # Assertions
        assert (M>0 and syms_per_frame>0), "M and syms_per_frame should be larger than zero!"
        assert ( int(math.log(M,2))==math.log(M,2)), "M should be of 2^n!"
        assert (self.preamble_length>0), "Preamble should be predefined."
        assert (self.preamble_length%M == 0), "preamble should be a multiple of M"


        # Blocks
        self.blocks_vector_to_stream_1 = blocks.vector_to_stream(gr.sizeof_gr_complex*1, M)
        self.blocks_vector_insert_x_0 = blocks.vector_insert_c(preamble, 2*syms_per_frame*M+self.preamble_length, 0)
        self.blocks_stream_to_vector_1 = blocks.stream_to_vector(gr.sizeof_gr_complex*1, M)

        # Connections
        self.connect((self.blocks_vector_to_stream_1, 0), (self.blocks_vector_insert_x_0, 0))
        self.connect((self.blocks_vector_insert_x_0, 0), (self.blocks_stream_to_vector_1, 0))
        self.connect((self, 0), (self.blocks_vector_to_stream_1, 0))
        self.connect((self.blocks_stream_to_vector_1, 0), (self, 0))
    def test_001_t(self):
        np.set_printoptions(precision=2)
        n_frames = 3
        alpha = .5
        M = 8
        K = 4
        L = 2
        cp_len = 8
        ramp_len = 4
        block_len = M * K
        window_len = get_window_len(cp_len, M, K)
        taps = get_frequency_domain_filter('rrc', alpha, M, K, L)
        window_taps = get_raised_cosine_ramp(ramp_len, window_len)
        pn_symbols = get_random_qpsk(K)
        H_preamble = get_frequency_domain_filter('rrc', alpha, 2, K, L)
        preamble = get_sync_symbol(pn_symbols, H_preamble, K, L, cp_len, ramp_len)

        ref = np.array([], dtype=np.complex)
        data = np.array([], dtype=np.complex)
        for i in range(n_frames):
            d = get_random_qpsk(block_len)
            D = get_data_matrix(d, K, group_by_subcarrier=False)
            b = gfdm_modulate_block(D, taps, M, K, L, False)
            b = add_cyclic_prefix(b, cp_len)
            b = pinch_block(b, window_taps)
            ref = np.concatenate((ref, preamble, b))
            data = np.concatenate((data, d))

        src = blocks.vector_source_c(data)
        mod = gfdm.simple_modulator_cc(M, K, L, taps)
        prefixer = gfdm.cyclic_prefixer_cc(cp_len, ramp_len, block_len, window_taps)
        preambler = blocks.vector_insert_c(preamble, window_len + len(preamble), 0)
        dst = blocks.vector_sink_c()

        self.tb.connect(src, mod, prefixer, preambler, dst)
        self.tb.run()
        res = np.array(dst.data())[0:len(ref)]

        self.assertComplexTuplesAlmostEqual(ref, res, 5)
    def __init__(self):
        gr.top_block.__init__(self, "Mod Ook Sim Inputfile")
        Qt.QWidget.__init__(self)
        self.setWindowTitle("Mod Ook Sim Inputfile")
        qtgui.util.check_set_qss()
        try:
            self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
        except:
            pass
        self.top_scroll_layout = Qt.QVBoxLayout()
        self.setLayout(self.top_scroll_layout)
        self.top_scroll = Qt.QScrollArea()
        self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
        self.top_scroll_layout.addWidget(self.top_scroll)
        self.top_scroll.setWidgetResizable(True)
        self.top_widget = Qt.QWidget()
        self.top_scroll.setWidget(self.top_widget)
        self.top_layout = Qt.QVBoxLayout(self.top_widget)
        self.top_grid_layout = Qt.QGridLayout()
        self.top_layout.addLayout(self.top_grid_layout)

        self.settings = Qt.QSettings("GNU Radio", "mod_OOK_sim_inputfile")

        if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
            self.restoreGeometry(self.settings.value("geometry").toByteArray())
        else:
            self.restoreGeometry(
                self.settings.value("geometry", type=QtCore.QByteArray))

        ##################################################
        # Variables
        ##################################################
        self.samp_rate = samp_rate = 100e6
        self.freq_carrier = freq_carrier = 10e6
        self.data_2 = data_2 = (1, 1)
        self.bitstream = bitstream = 600
        self.Event = Event = '@FlUxIuS - Synacktiv.com / PentHertz.com'

        ##################################################
        # Blocks
        ##################################################
        self.qtgui_time_sink_x_0 = qtgui.time_sink_c(
            1024,  #size
            samp_rate,  #samp_rate
            "",  #name
            1  #number of inputs
        )
        self.qtgui_time_sink_x_0.set_update_time(0.1)
        self.qtgui_time_sink_x_0.set_y_axis(-10, 10)

        self.qtgui_time_sink_x_0.set_y_label('Amplitude', "")

        self.qtgui_time_sink_x_0.enable_tags(-1, True)
        self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_AUTO,
                                                  qtgui.TRIG_SLOPE_POS, 0.0, 0,
                                                  0, "")
        self.qtgui_time_sink_x_0.enable_autoscale(True)
        self.qtgui_time_sink_x_0.enable_grid(True)
        self.qtgui_time_sink_x_0.enable_axis_labels(True)
        self.qtgui_time_sink_x_0.enable_control_panel(True)
        self.qtgui_time_sink_x_0.enable_stem_plot(False)

        if not True:
            self.qtgui_time_sink_x_0.disable_legend()

        labels = ['', '', '', '', '', '', '', '', '', '']
        widths = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
        colors = [
            "blue", "red", "green", "black", "cyan", "magenta", "yellow",
            "dark red", "dark green", "blue"
        ]
        styles = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
        markers = [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1]
        alphas = [1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]

        for i in xrange(2):
            if len(labels[i]) == 0:
                if (i % 2 == 0):
                    self.qtgui_time_sink_x_0.set_line_label(
                        i, "Re{{Data {0}}}".format(i / 2))
                else:
                    self.qtgui_time_sink_x_0.set_line_label(
                        i, "Im{{Data {0}}}".format(i / 2))
            else:
                self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
            self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
            self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
            self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
            self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
            self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])

        self._qtgui_time_sink_x_0_win = sip.wrapinstance(
            self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
        self.top_layout.addWidget(self._qtgui_time_sink_x_0_win)
        self.blocks_vector_source_x_0 = blocks.vector_source_c(
            data_2, True, 1, [])
        self.blocks_vector_insert_x_0 = blocks.vector_insert_c(
            (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0),
            len(data_2) + 16, 0)
        self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex * 1,
                                                 samp_rate, True)
        self.blocks_repeat_0 = blocks.repeat(gr.sizeof_gr_complex * 1,
                                             bitstream)
        self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
        self.blocks_file_sink_0 = blocks.file_sink(gr.sizeof_gr_complex * 1,
                                                   'OOK_gen_inputfile.cfile',
                                                   False)
        self.blocks_file_sink_0.set_unbuffered(False)
        self.analog_sig_source_x_0_0_0 = analog.sig_source_c(
            samp_rate, analog.GR_COS_WAVE, freq_carrier, 1, 0)
        self._Event_tool_bar = Qt.QToolBar(self)

        if None:
            self._Event_formatter = None
        else:
            self._Event_formatter = lambda x: str(x)

        self._Event_tool_bar.addWidget(
            Qt.QLabel('GreHack Workshop 2019' + ": "))
        self._Event_label = Qt.QLabel(str(self._Event_formatter(self.Event)))
        self._Event_tool_bar.addWidget(self._Event_label)
        self.top_layout.addWidget(self._Event_tool_bar)

        ##################################################
        # Connections
        ##################################################
        self.connect((self.analog_sig_source_x_0_0_0, 0),
                     (self.blocks_multiply_xx_0, 0))
        self.connect((self.blocks_multiply_xx_0, 0),
                     (self.blocks_file_sink_0, 0))
        self.connect((self.blocks_multiply_xx_0, 0),
                     (self.qtgui_time_sink_x_0, 0))
        self.connect((self.blocks_repeat_0, 0), (self.blocks_throttle_0, 0))
        self.connect((self.blocks_throttle_0, 0),
                     (self.blocks_multiply_xx_0, 1))
        self.connect((self.blocks_vector_insert_x_0, 0),
                     (self.blocks_repeat_0, 0))
        self.connect((self.blocks_vector_source_x_0, 0),
                     (self.blocks_vector_insert_x_0, 0))
    def __init__(self):
        gr.top_block.__init__(self, "Not titled yet")
        Qt.QWidget.__init__(self)
        self.setWindowTitle("Not titled yet")
        qtgui.util.check_set_qss()
        try:
            self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
        except:
            pass
        self.top_scroll_layout = Qt.QVBoxLayout()
        self.setLayout(self.top_scroll_layout)
        self.top_scroll = Qt.QScrollArea()
        self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
        self.top_scroll_layout.addWidget(self.top_scroll)
        self.top_scroll.setWidgetResizable(True)
        self.top_widget = Qt.QWidget()
        self.top_scroll.setWidget(self.top_widget)
        self.top_layout = Qt.QVBoxLayout(self.top_widget)
        self.top_grid_layout = Qt.QGridLayout()
        self.top_layout.addLayout(self.top_grid_layout)

        self.settings = Qt.QSettings("GNU Radio", "send")

        try:
            if StrictVersion(Qt.qVersion()) < StrictVersion("5.0.0"):
                self.restoreGeometry(
                    self.settings.value("geometry").toByteArray())
            else:
                self.restoreGeometry(self.settings.value("geometry"))
        except:
            pass

        ##################################################
        # Variables
        ##################################################
        self.samp_rate = samp_rate = 25e5
        self.payload = payload = np.load("payload.npy")
        self.padding = padding = list(np.zeros(32))
        self.carrier = carrier = 915552

        ##################################################
        # Blocks
        ##################################################
        self.qtgui_sink_x_0 = qtgui.sink_c(
            1024,  #fftsize
            firdes.WIN_BLACKMAN_hARRIS,  #wintype
            433e6,  #fc
            samp_rate,  #bw
            "",  #name
            True,  #plotfreq
            True,  #plotwaterfall
            True,  #plottime
            True  #plotconst
        )
        self.qtgui_sink_x_0.set_update_time(1.0 / 10)
        self._qtgui_sink_x_0_win = sip.wrapinstance(
            self.qtgui_sink_x_0.pyqwidget(), Qt.QWidget)

        self.qtgui_sink_x_0.enable_rf_freq(False)

        self.top_grid_layout.addWidget(self._qtgui_sink_x_0_win)
        self.blocks_vector_source_x_0 = blocks.vector_source_c(
            payload, True, 1, [])
        self.blocks_vector_insert_x_0 = blocks.vector_insert_c(
            padding,
            len(payload) + len(padding), 0)
        self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex * 1,
                                                 samp_rate, True)
        self.blocks_repeat_0 = blocks.repeat(gr.sizeof_gr_complex * 1, 1250)
        self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
        self.analog_sig_source_x_0 = analog.sig_source_c(
            samp_rate, analog.GR_COS_WAVE, carrier, 1, 0, 0)

        ##################################################
        # Connections
        ##################################################
        self.connect((self.analog_sig_source_x_0, 0),
                     (self.blocks_multiply_xx_0, 1))
        self.connect((self.blocks_multiply_xx_0, 0), (self.qtgui_sink_x_0, 0))
        self.connect((self.blocks_repeat_0, 0), (self.blocks_throttle_0, 0))
        self.connect((self.blocks_throttle_0, 0),
                     (self.blocks_multiply_xx_0, 0))
        self.connect((self.blocks_vector_insert_x_0, 0),
                     (self.blocks_repeat_0, 0))
        self.connect((self.blocks_vector_source_x_0, 0),
                     (self.blocks_vector_insert_x_0, 0))
Exemple #7
0
    def __init__(self,
                 M,
                 syms_per_frame,
                 sel_preamble,
                 zero_pads,
                 extra_pad=False):
        gr.hier_block2.__init__(
            self,
            "insert_preamble_vcvc",
            gr.io_signature(1, 1, gr.sizeof_gr_complex * M),
            gr.io_signature(1, 1, gr.sizeof_gr_complex * M),
        )

        # Parameters
        self.M = M
        self.syms_per_frame = syms_per_frame
        if sel_preamble == 0:  # standard one vector center preamble [1,-j,-1,j]
            self.center_preamble = center_preamble = [1, -1j, -1, 1j] * (
                (int)(M / 4))
        elif sel_preamble == 1:  # standard preamble with triple repetition
            self.center_preamble = center_preamble = [1, -1j, -1, 1j] * (
                (int)(M / 4)
            ) * 3  #[1/math.sqrt(3), -1j/math.sqrt(3), -1/math.sqrt(3), 1j/math.sqrt(3)]*((int)(M/4))*3
        elif sel_preamble == 2:  # IAM-R preamble [1, -1,-1, 1]
            self.center_preamble = center_preamble = [1, -1, -1, 1] * (
                (int)(M / 4))
        else:  # standard one vector center preamble [1,-j,-1,j]
            self.center_preamble = center_preamble = [1, -1j, -1, 1j] * (
                (int)(M / 4))

        self.preamble = preamble = [0] * M * zero_pads + center_preamble + [
            0
        ] * M * zero_pads

        if extra_pad:
            self.preamble = preamble = preamble + [0] * M

        # Variables
        self.preamble_length = len(preamble)

        # Assertions
        assert (M > 0 and syms_per_frame > 0
                ), "M and syms_per_frame should be larger than zero!"
        assert (int(math.log(M, 2)) == math.log(M, 2)), "M should be of 2^n!"
        assert (self.preamble_length > 0), "Preamble should be predefined."
        assert (self.preamble_length %
                M == 0), "preamble should be a multiple of M"

        # Blocks
        self.blocks_vector_to_stream_1 = blocks.vector_to_stream(
            gr.sizeof_gr_complex * 1, M)
        self.blocks_vector_insert_x_0 = blocks.vector_insert_c(
            preamble, 2 * syms_per_frame * M + self.preamble_length, 0)
        self.blocks_stream_to_vector_1 = blocks.stream_to_vector(
            gr.sizeof_gr_complex * 1, M)

        # Connections
        self.connect((self.blocks_vector_to_stream_1, 0),
                     (self.blocks_vector_insert_x_0, 0))
        self.connect((self.blocks_vector_insert_x_0, 0),
                     (self.blocks_stream_to_vector_1, 0))
        self.connect((self, 0), (self.blocks_vector_to_stream_1, 0))
        self.connect((self.blocks_stream_to_vector_1, 0), (self, 0))
Exemple #8
0
    def __init__(self):
        grc_wxgui.top_block_gui.__init__(
            self, title="IEEE 802.15.4 Transceiver using CSS PHY")
        _icon_path = "/usr/share/icons/hicolor/32x32/apps/gnuradio-grc.png"
        self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY))

        ##################################################
        # Variables
        ##################################################
        self.text_msg = text_msg = "This is a test message"
        self.c = c = ieee802_15_4.css_phy(chirp_number=4,
                                          phy_packetsize_bytes=len(text_msg) +
                                          15)
        self.samp_rate = samp_rate = 32e6
        self.phi = phi = 10
        self.pad_len = pad_len = c.nsamp_frame * 0
        self.msg_interval = msg_interval = 1000
        self.freq_off = freq_off = 0
        self.enable = enable = 1.0
        self.delay = delay = 0
        self.ampl = ampl = 0

        ##################################################
        # Blocks
        ##################################################
        _pad_len_sizer = wx.BoxSizer(wx.VERTICAL)
        self._pad_len_text_box = forms.text_box(
            parent=self.GetWin(),
            sizer=_pad_len_sizer,
            value=self.pad_len,
            callback=self.set_pad_len,
            label="Pad Length",
            converter=forms.float_converter(),
            proportion=0,
        )
        self._pad_len_slider = forms.slider(
            parent=self.GetWin(),
            sizer=_pad_len_sizer,
            value=self.pad_len,
            callback=self.set_pad_len,
            minimum=0,
            maximum=10000,
            num_steps=100,
            style=wx.SL_HORIZONTAL,
            cast=float,
            proportion=1,
        )
        self.Add(_pad_len_sizer)
        self.nb = self.nb = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
        self.nb.AddPage(grc_wxgui.Panel(self.nb), "RX Waterfall")
        self.nb.AddPage(grc_wxgui.Panel(self.nb), "RX FFT")
        self.nb.AddPage(grc_wxgui.Panel(self.nb), "RX Time")
        self.nb.AddPage(grc_wxgui.Panel(self.nb), "RX Symbols")
        self.Add(self.nb)
        _msg_interval_sizer = wx.BoxSizer(wx.VERTICAL)
        self._msg_interval_text_box = forms.text_box(
            parent=self.GetWin(),
            sizer=_msg_interval_sizer,
            value=self.msg_interval,
            callback=self.set_msg_interval,
            label="Message Interval [ms]",
            converter=forms.float_converter(),
            proportion=0,
        )
        self._msg_interval_slider = forms.slider(
            parent=self.GetWin(),
            sizer=_msg_interval_sizer,
            value=self.msg_interval,
            callback=self.set_msg_interval,
            minimum=1,
            maximum=5000,
            num_steps=1000,
            style=wx.SL_HORIZONTAL,
            cast=float,
            proportion=1,
        )
        self.Add(_msg_interval_sizer)
        _freq_off_sizer = wx.BoxSizer(wx.VERTICAL)
        self._freq_off_text_box = forms.text_box(
            parent=self.GetWin(),
            sizer=_freq_off_sizer,
            value=self.freq_off,
            callback=self.set_freq_off,
            label="Frequency Offset",
            converter=forms.float_converter(),
            proportion=0,
        )
        self._freq_off_slider = forms.slider(
            parent=self.GetWin(),
            sizer=_freq_off_sizer,
            value=self.freq_off,
            callback=self.set_freq_off,
            minimum=-1e5,
            maximum=1e5,
            num_steps=1000,
            style=wx.SL_HORIZONTAL,
            cast=float,
            proportion=1,
        )
        self.Add(_freq_off_sizer)
        _delay_sizer = wx.BoxSizer(wx.VERTICAL)
        self._delay_text_box = forms.text_box(
            parent=self.GetWin(),
            sizer=_delay_sizer,
            value=self.delay,
            callback=self.set_delay,
            label="Delay",
            converter=forms.float_converter(),
            proportion=0,
        )
        self._delay_slider = forms.slider(
            parent=self.GetWin(),
            sizer=_delay_sizer,
            value=self.delay,
            callback=self.set_delay,
            minimum=0,
            maximum=100000,
            num_steps=100,
            style=wx.SL_HORIZONTAL,
            cast=float,
            proportion=1,
        )
        self.Add(_delay_sizer)
        _ampl_sizer = wx.BoxSizer(wx.VERTICAL)
        self._ampl_text_box = forms.text_box(
            parent=self.GetWin(),
            sizer=_ampl_sizer,
            value=self.ampl,
            callback=self.set_ampl,
            label="Noise Amplitude",
            converter=forms.float_converter(),
            proportion=0,
        )
        self._ampl_slider = forms.slider(
            parent=self.GetWin(),
            sizer=_ampl_sizer,
            value=self.ampl,
            callback=self.set_ampl,
            minimum=0,
            maximum=1,
            num_steps=100,
            style=wx.SL_HORIZONTAL,
            cast=float,
            proportion=1,
        )
        self.Add(_ampl_sizer)
        self.wxgui_waterfallsink2_0 = waterfallsink2.waterfall_sink_c(
            self.nb.GetPage(0).GetWin(),
            baseband_freq=0,
            dynamic_range=100,
            ref_level=0,
            ref_scale=2.0,
            sample_rate=samp_rate,
            fft_size=512,
            fft_rate=15,
            average=False,
            avg_alpha=None,
            title="RX Waterfall",
        )
        self.nb.GetPage(0).Add(self.wxgui_waterfallsink2_0.win)
        self.wxgui_scopesink2_3 = scopesink2.scope_sink_c(
            self.nb.GetPage(3).GetWin(),
            title="RX Correlator Output",
            sample_rate=samp_rate,
            v_scale=0,
            v_offset=0,
            t_scale=0,
            ac_couple=False,
            xy_mode=False,
            num_inputs=1,
            trig_mode=wxgui.TRIG_MODE_AUTO,
            y_axis_label="Counts",
        )
        self.nb.GetPage(3).Add(self.wxgui_scopesink2_3.win)
        self.wxgui_scopesink2_2 = scopesink2.scope_sink_c(
            self.nb.GetPage(2).GetWin(),
            title="RX Time Signal",
            sample_rate=samp_rate,
            v_scale=0,
            v_offset=0,
            t_scale=0,
            ac_couple=False,
            xy_mode=False,
            num_inputs=1,
            trig_mode=wxgui.TRIG_MODE_AUTO,
            y_axis_label="Counts",
        )
        self.nb.GetPage(2).Add(self.wxgui_scopesink2_2.win)
        self.wxgui_fftsink2_0 = fftsink2.fft_sink_c(
            self.nb.GetPage(1).GetWin(),
            baseband_freq=0,
            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="RX FFT",
            peak_hold=False,
        )
        self.nb.GetPage(1).Add(self.wxgui_fftsink2_0.win)
        _phi_sizer = wx.BoxSizer(wx.VERTICAL)
        self._phi_text_box = forms.text_box(
            parent=self.GetWin(),
            sizer=_phi_sizer,
            value=self.phi,
            callback=self.set_phi,
            label="Phi",
            converter=forms.float_converter(),
            proportion=0,
        )
        self._phi_slider = forms.slider(
            parent=self.GetWin(),
            sizer=_phi_sizer,
            value=self.phi,
            callback=self.set_phi,
            minimum=2,
            maximum=20,
            num_steps=100,
            style=wx.SL_HORIZONTAL,
            cast=float,
            proportion=1,
        )
        self.Add(_phi_sizer)
        self.ieee802_15_4_rime_stack_0 = ieee802_15_4.rime_stack(
            ([129]), ([131]), ([132]), ([23, 42]))
        self.ieee802_15_4_mac_0 = ieee802_15_4.mac(True)
        self.ieee802_15_4_css_phy_1 = ieee802_15_4_css_phy(
            bits_per_cw=c.bits_per_symbol,
            chirp_seq=c.chirp_seq,
            codewords=c.codewords,
            intlv_seq=c.intlv_seq,
            len_sub=38,
            nbytes_payload=c.phy_packetsize_bytes,
            nsamp_frame=c.nsamp_frame,
            num_subchirps=c.n_subchirps,
            nzeros_padding=c.padded_zeros,
            phr=c.PHR,
            preamble=c.preamble,
            sfd=c.SFD,
            sym_per_frame=c.nsym_frame,
            threshold=0.95,
            time_gap_1=c.time_gap_1,
            time_gap_2=c.time_gap_2,
        )
        self._enable_chooser = forms.button(
            parent=self.GetWin(),
            value=self.enable,
            callback=self.set_enable,
            label="TX Enable",
            choices=[1.0, 0.0],
            labels=['on', 'off'],
        )
        self.Add(self._enable_chooser)
        self.blocks_vector_insert_x_0 = blocks.vector_insert_c(
            ([0 for i in range(pad_len)]), 3 * c.nsamp_frame,
            3 * c.nsamp_frame)
        self.blocks_socket_pdu_0_0 = blocks.socket_pdu("UDP_SERVER", "",
                                                       "52001", 10000, False)
        self.blocks_multiply_xx_1 = blocks.multiply_vcc(1)
        self.blocks_multiply_xx_0 = blocks.multiply_vcc(1)
        self.blocks_message_strobe_0 = blocks.message_strobe(
            pmt.intern(text_msg), msg_interval)
        self.blocks_delay_0 = blocks.delay(gr.sizeof_gr_complex * 1,
                                           int(delay))
        self.blocks_add_xx_0 = blocks.add_vcc(1)
        self.analog_sig_source_x_0 = analog.sig_source_c(
            samp_rate, analog.GR_SIN_WAVE, freq_off, 1, 0)
        self.analog_fastnoise_source_x_0 = analog.fastnoise_source_c(
            analog.GR_GAUSSIAN, ampl, 0, 8192)
        self.analog_const_source_x_0 = analog.sig_source_c(
            0, analog.GR_CONST_WAVE, 0, 0, 10)

        ##################################################
        # Connections
        ##################################################
        self.msg_connect((self.blocks_message_strobe_0, 'strobe'),
                         (self.ieee802_15_4_rime_stack_0, 'bcin'))
        self.msg_connect((self.blocks_socket_pdu_0_0, 'pdus'),
                         (self.ieee802_15_4_rime_stack_0, 'bcin'))
        self.msg_connect((self.ieee802_15_4_css_phy_1, 'rxout'),
                         (self.ieee802_15_4_mac_0, 'pdu in'))
        self.msg_connect((self.ieee802_15_4_mac_0, 'pdu out'),
                         (self.ieee802_15_4_css_phy_1, 'txin'))
        self.msg_connect((self.ieee802_15_4_mac_0, 'app out'),
                         (self.ieee802_15_4_rime_stack_0, 'fromMAC'))
        self.msg_connect((self.ieee802_15_4_rime_stack_0, 'bcout'),
                         (self.blocks_socket_pdu_0_0, 'pdus'))
        self.msg_connect((self.ieee802_15_4_rime_stack_0, 'toMAC'),
                         (self.ieee802_15_4_mac_0, 'app in'))
        self.connect((self.analog_const_source_x_0, 0),
                     (self.blocks_delay_0, 0))
        self.connect((self.analog_fastnoise_source_x_0, 0),
                     (self.blocks_add_xx_0, 0))
        self.connect((self.analog_sig_source_x_0, 0),
                     (self.blocks_multiply_xx_0, 0))
        self.connect((self.blocks_add_xx_0, 0),
                     (self.ieee802_15_4_css_phy_1, 0))
        self.connect((self.blocks_add_xx_0, 0), (self.wxgui_fftsink2_0, 0))
        self.connect((self.blocks_add_xx_0, 0), (self.wxgui_scopesink2_2, 0))
        self.connect((self.blocks_add_xx_0, 0),
                     (self.wxgui_waterfallsink2_0, 0))
        self.connect((self.blocks_delay_0, 0), (self.blocks_multiply_xx_1, 0))
        self.connect((self.blocks_multiply_xx_0, 0),
                     (self.blocks_vector_insert_x_0, 0))
        self.connect((self.blocks_multiply_xx_1, 0), (self.blocks_add_xx_0, 1))
        self.connect((self.blocks_vector_insert_x_0, 0),
                     (self.blocks_multiply_xx_1, 1))
        self.connect((self.ieee802_15_4_css_phy_1, 0),
                     (self.blocks_multiply_xx_0, 1))
        self.connect((self.ieee802_15_4_css_phy_1, 1),
                     (self.wxgui_scopesink2_3, 0))
    def __init__(self, M, syms_per_frame, start, end, sel_eq, sel_preamble, zero_pads, extra_pad=False):
        gr.hier_block2.__init__(self,
            "fbmc_insert_preamble_mu_vcvc",
            gr.io_signature(1, 1, gr.sizeof_gr_complex*M),
            gr.io_signature(1, 1, gr.sizeof_gr_complex*M),
        )

        # Parameters
        self.M = M
        self.syms_per_frame = syms_per_frame;
        self.sel_eq = sel_eq
        if sel_preamble == 0: # standard one vector center preamble [1,-j,-1,j]
            self.center_preamble = center_preamble = [1, -1j, -1, 1j]*((int)(M/4))
        elif sel_preamble == 1: # standard preamble with triple repetition
            self.center_preamble = center_preamble = [1, -1j, -1, 1j]*((int)(M/4))*3 #[1/math.sqrt(3), -1j/math.sqrt(3), -1/math.sqrt(3), 1j/math.sqrt(3)]*((int)(M/4))*3
        elif sel_preamble ==2: # IAM-R preamble [1, -1,-1, 1]
            self.center_preamble = center_preamble = [1, -1, -1, 1]*((int)(M/4))
        else: # standard one vector center preamble [1,-j,-1,j]
            self.center_preamble = center_preamble = [1, -1j, -1, 1j]*((int)(M/4))

        # modify center preamble so that unused subchannels would be nulled.
        center = list()
        for i in range(len(center_preamble)):
            if ((sel_eq == 1) or (sel_eq == 2)):
                # for now it's assumed that subchannel 0 won't be ever used.
                assert(start>0), "assumption: subchannel #0 won't be ever used."
                assert(end<M-1), "assumption: subchannel #M-1 won't be ever used."
                if ((i%M)<=(end+1) and (i%M)>=(start-1)): 
                    center.append(center_preamble[i])
                else:
                    center.append(0)
            else:
                if ((i%M)<=end and (i%M)>=start):
                    center.append(center_preamble[i])
                else:
                    center.append(0)

        self.preamble = preamble = [0]*M*zero_pads+center+[0]*M*zero_pads

        if extra_pad:
            self.preamble = preamble = preamble + [0]*M

        # Variables
        self.preamble_length = len(preamble)

        # Assertions
        assert (M>0 and syms_per_frame>0), "M and syms_per_frame should be larger than zero!"
        assert ( int(math.log(M,2))==math.log(M,2)), "M should be of 2^n!"
        assert (self.preamble_length>0), "Preamble should be predefined."
        assert (self.preamble_length%M == 0), "preamble should be a multiple of M"


        # Blocks
        self.blocks_vector_to_stream_1 = blocks.vector_to_stream(gr.sizeof_gr_complex*1, M)
        self.blocks_vector_insert_x_0 = blocks.vector_insert_c(preamble, 2*syms_per_frame*M+self.preamble_length, 0)
        self.blocks_stream_to_vector_1 = blocks.stream_to_vector(gr.sizeof_gr_complex*1, M)

        # Connections
        self.connect((self.blocks_vector_to_stream_1, 0), (self.blocks_vector_insert_x_0, 0))
        self.connect((self.blocks_vector_insert_x_0, 0), (self.blocks_stream_to_vector_1, 0))
        self.connect((self, 0), (self.blocks_vector_to_stream_1, 0))
        self.connect((self.blocks_stream_to_vector_1, 0), (self, 0))