diff options
Diffstat (limited to 'gr-noaa/grc/usrp_rx_hrpt.py')
| -rwxr-xr-x | gr-noaa/grc/usrp_rx_hrpt.py | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/gr-noaa/grc/usrp_rx_hrpt.py b/gr-noaa/grc/usrp_rx_hrpt.py new file mode 100755 index 000000000..ed6417335 --- /dev/null +++ b/gr-noaa/grc/usrp_rx_hrpt.py @@ -0,0 +1,245 @@ +#!/usr/bin/env python +################################################## +# Gnuradio Python Flow Graph +# Title: USRP HRPT Receiver +# Generated: Sat Aug 29 11:48:57 2009 +################################################## + +from gnuradio import gr +from gnuradio import noaa +from gnuradio.eng_option import eng_option +from gnuradio.wxgui import fftsink2 +from gnuradio.wxgui import forms +from gnuradio.wxgui import scopesink2 +from grc_gnuradio import wxgui as grc_wxgui +from optparse import OptionParser +import math +import wx + +class usrp_rx_hrpt(grc_wxgui.top_block_gui): + + def __init__(self): + grc_wxgui.top_block_gui.__init__(self, title="USRP HRPT Receiver") + + ################################################## + # Variables + ################################################## + self.decim = decim = 16 + self.sym_rate = sym_rate = 600*1109 + self.sample_rate = sample_rate = 64e6/decim + self.sps = sps = sample_rate/sym_rate + self.sync_alpha = sync_alpha = 0.005 + self.pll_alpha = pll_alpha = 0.005 + self.max_sync_offset = max_sync_offset = 0.01 + self.max_carrier_offset = max_carrier_offset = 2*math.pi*100e3/sample_rate + self.hs = hs = int(sps/2.0) + + ################################################## + # Notebooks + ################################################## + self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP) + self.displays.AddPage(grc_wxgui.Panel(self.displays), "RX") + self.displays.AddPage(grc_wxgui.Panel(self.displays), "PLL") + self.displays.AddPage(grc_wxgui.Panel(self.displays), "SYNC") + self.GridAdd(self.displays, 1, 0, 1, 2) + + ################################################## + # Controls + ################################################## + _sync_alpha_sizer = wx.BoxSizer(wx.VERTICAL) + self._sync_alpha_text_box = forms.text_box( + parent=self.GetWin(), + sizer=_sync_alpha_sizer, + value=self.sync_alpha, + callback=self.set_sync_alpha, + label="SYNC Alpha", + converter=forms.float_converter(), + proportion=0, + ) + self._sync_alpha_slider = forms.slider( + parent=self.GetWin(), + sizer=_sync_alpha_sizer, + value=self.sync_alpha, + callback=self.set_sync_alpha, + minimum=0.0, + maximum=0.5, + num_steps=500, + style=wx.SL_HORIZONTAL, + cast=float, + proportion=1, + ) + self.GridAdd(_sync_alpha_sizer, 0, 1, 1, 1) + _pll_alpha_sizer = wx.BoxSizer(wx.VERTICAL) + self._pll_alpha_text_box = forms.text_box( + parent=self.GetWin(), + sizer=_pll_alpha_sizer, + value=self.pll_alpha, + callback=self.set_pll_alpha, + label="PLL Alpha", + converter=forms.float_converter(), + proportion=0, + ) + self._pll_alpha_slider = forms.slider( + parent=self.GetWin(), + sizer=_pll_alpha_sizer, + value=self.pll_alpha, + callback=self.set_pll_alpha, + minimum=0.0, + maximum=0.5, + num_steps=500, + style=wx.SL_HORIZONTAL, + cast=float, + proportion=1, + ) + self.GridAdd(_pll_alpha_sizer, 0, 0, 1, 1) + + ################################################## + # Blocks + ################################################## + self.agr = gr.agc_cc(1e-6, 1.0, 1.0, 1.0) + self.gr_moving_average_xx_0 = gr.moving_average_cc(hs, 1.0/hs, 4000) + self.noaa_hrpt_pll_cc_0 = noaa.hrpt_pll_cc(pll_alpha, pll_alpha**2/4.0, max_carrier_offset) + self.rx_fftsink = fftsink2.fft_sink_c( + self.displays.GetPage(0).GetWin(), + baseband_freq=1698e6, + y_per_div=5, + y_divs=8, + ref_level=20, + sample_rate=sample_rate, + fft_size=1024, + fft_rate=30, + average=True, + avg_alpha=0.1, + title="RX Spectrum", + peak_hold=False, + ) + self.displays.GetPage(0).GridAdd(self.rx_fftsink.win, 0, 0, 1, 1) + self.src = gr.file_source(gr.sizeof_gr_complex*1, "poes-d16.dat", True) + self.sync = noaa.hrpt_sync_cc(sync_alpha, sync_alpha**2/4.0, sps, max_sync_offset) + self.throttle = gr.throttle(gr.sizeof_gr_complex*1, sample_rate) + self.wxgui_scopesink2_0 = scopesink2.scope_sink_c( + self.displays.GetPage(0).GetWin(), + title="RX Waveform", + sample_rate=sample_rate, + v_scale=0, + t_scale=20.0/sample_rate, + ac_couple=False, + xy_mode=False, + num_inputs=1, + ) + self.displays.GetPage(0).GridAdd(self.wxgui_scopesink2_0.win, 1, 0, 1, 1) + self.wxgui_scopesink2_0_0 = scopesink2.scope_sink_c( + self.displays.GetPage(1).GetWin(), + title="Post-PLL", + sample_rate=sample_rate, + v_scale=0.5, + t_scale=20.0/sample_rate, + ac_couple=False, + xy_mode=False, + num_inputs=1, + ) + self.displays.GetPage(1).GridAdd(self.wxgui_scopesink2_0_0.win, 0, 0, 1, 1) + self.wxgui_scopesink2_0_0_0 = scopesink2.scope_sink_c( + self.displays.GetPage(1).GetWin(), + title="Post-PLL", + sample_rate=sample_rate, + v_scale=0.5, + t_scale=20.0/sample_rate, + ac_couple=False, + xy_mode=True, + num_inputs=1, + ) + self.displays.GetPage(1).GridAdd(self.wxgui_scopesink2_0_0_0.win, 1, 0, 1, 1) + self.wxgui_scopesink2_0_0_0_0 = scopesink2.scope_sink_c( + self.displays.GetPage(2).GetWin(), + title="Post-SYNC", + sample_rate=sample_rate, + v_scale=0.5, + t_scale=20.0/sample_rate, + ac_couple=False, + xy_mode=True, + num_inputs=1, + ) + self.displays.GetPage(2).GridAdd(self.wxgui_scopesink2_0_0_0_0.win, 1, 0, 1, 1) + self.wxgui_scopesink2_0_0_1 = scopesink2.scope_sink_c( + self.displays.GetPage(2).GetWin(), + title="Post-SYNC", + sample_rate=sample_rate, + v_scale=0.5, + t_scale=20.0/sample_rate, + ac_couple=False, + xy_mode=False, + num_inputs=1, + ) + self.displays.GetPage(2).GridAdd(self.wxgui_scopesink2_0_0_1.win, 0, 0, 1, 1) + + ################################################## + # Connections + ################################################## + self.connect((self.src, 0), (self.throttle, 0)) + self.connect((self.throttle, 0), (self.agr, 0)) + self.connect((self.agr, 0), (self.gr_moving_average_xx_0, 0)) + self.connect((self.agr, 0), (self.rx_fftsink, 0)) + self.connect((self.agr, 0), (self.wxgui_scopesink2_0, 0)) + self.connect((self.gr_moving_average_xx_0, 0), (self.noaa_hrpt_pll_cc_0, 0)) + self.connect((self.noaa_hrpt_pll_cc_0, 0), (self.wxgui_scopesink2_0_0, 0)) + self.connect((self.noaa_hrpt_pll_cc_0, 0), (self.wxgui_scopesink2_0_0_0, 0)) + self.connect((self.noaa_hrpt_pll_cc_0, 0), (self.sync, 0)) + self.connect((self.sync, 0), (self.wxgui_scopesink2_0_0_1, 0)) + self.connect((self.sync, 0), (self.wxgui_scopesink2_0_0_0_0, 0)) + + def set_decim(self, decim): + self.decim = decim + self.set_sample_rate(64e6/self.decim) + + def set_sym_rate(self, sym_rate): + self.sym_rate = sym_rate + self.set_sps(self.sample_rate/self.sym_rate) + + def set_sample_rate(self, sample_rate): + self.sample_rate = sample_rate + self.set_sps(self.sample_rate/self.sym_rate) + self.rx_fftsink.set_sample_rate(self.sample_rate) + self.wxgui_scopesink2_0.set_sample_rate(self.sample_rate) + self.set_max_carrier_offset(2*math.pi*100e3/self.sample_rate) + self.wxgui_scopesink2_0_0.set_sample_rate(self.sample_rate) + self.wxgui_scopesink2_0_0_1.set_sample_rate(self.sample_rate) + self.wxgui_scopesink2_0_0_0.set_sample_rate(self.sample_rate) + self.wxgui_scopesink2_0_0_0_0.set_sample_rate(self.sample_rate) + + def set_sps(self, sps): + self.sps = sps + self.set_hs(int(self.sps/2.0)) + + def set_sync_alpha(self, sync_alpha): + self.sync_alpha = sync_alpha + self._sync_alpha_slider.set_value(self.sync_alpha) + self._sync_alpha_text_box.set_value(self.sync_alpha) + self.sync.set_alpha(self.sync_alpha) + self.sync.set_beta(self.sync_alpha**2/4.0) + + def set_pll_alpha(self, pll_alpha): + self.pll_alpha = pll_alpha + self._pll_alpha_slider.set_value(self.pll_alpha) + self._pll_alpha_text_box.set_value(self.pll_alpha) + self.noaa_hrpt_pll_cc_0.set_alpha(self.pll_alpha) + self.noaa_hrpt_pll_cc_0.set_beta(self.pll_alpha**2/4.0) + + def set_max_sync_offset(self, max_sync_offset): + self.max_sync_offset = max_sync_offset + self.sync.set_max_offset(self.max_sync_offset) + + def set_max_carrier_offset(self, max_carrier_offset): + self.max_carrier_offset = max_carrier_offset + self.noaa_hrpt_pll_cc_0.set_max_offset(self.max_carrier_offset) + + def set_hs(self, hs): + self.hs = hs + self.gr_moving_average_xx_0.set_length_and_scale(self.hs, 1.0/self.hs) + +if __name__ == '__main__': + parser = OptionParser(option_class=eng_option, usage="%prog: [options]") + (options, args) = parser.parse_args() + tb = usrp_rx_hrpt() + tb.Run(True) + |