2 ##################################################
3 # Gnuradio Python Flow Graph
4 # Title: USRP HRPT Receiver
5 # Generated: Mon Sep 7 13:05:09 2009
6 ##################################################
8 from gnuradio import eng_notation
9 from gnuradio import gr
10 from gnuradio import noaa
11 from gnuradio.eng_option import eng_option
12 from gnuradio.gr import firdes
13 from gnuradio.wxgui import fftsink2
14 from gnuradio.wxgui import forms
15 from gnuradio.wxgui import scopesink2
16 from grc_gnuradio import wxgui as grc_wxgui
17 from optparse import OptionParser
21 class usrp_rx_hrpt(grc_wxgui.top_block_gui):
24 grc_wxgui.top_block_gui.__init__(self, title="USRP HRPT Receiver")
26 ##################################################
28 ##################################################
29 self.decim = decim = 16
30 self.sym_rate = sym_rate = 600*1109
31 self.sample_rate = sample_rate = 64e6/decim
32 self.sps = sps = sample_rate/sym_rate
33 self.sync_alpha = sync_alpha = 0.001
34 self.pll_alpha = pll_alpha = 0.001
35 self.max_sync_offset = max_sync_offset = 0.01
36 self.max_carrier_offset = max_carrier_offset = 2*math.pi*100e3/sample_rate
37 self.hs = hs = int(sps/2.0)
39 ##################################################
41 ##################################################
42 self.displays = wx.Notebook(self.GetWin(), style=wx.NB_TOP)
43 self.displays.AddPage(grc_wxgui.Panel(self.displays), "RX")
44 self.displays.AddPage(grc_wxgui.Panel(self.displays), "PLL/SYNC")
45 self.GridAdd(self.displays, 1, 0, 1, 2)
47 ##################################################
49 ##################################################
50 _sync_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
51 self._sync_alpha_text_box = forms.text_box(
53 sizer=_sync_alpha_sizer,
54 value=self.sync_alpha,
55 callback=self.set_sync_alpha,
57 converter=forms.float_converter(),
60 self._sync_alpha_slider = forms.slider(
62 sizer=_sync_alpha_sizer,
63 value=self.sync_alpha,
64 callback=self.set_sync_alpha,
68 style=wx.SL_HORIZONTAL,
72 self.GridAdd(_sync_alpha_sizer, 0, 1, 1, 1)
73 _pll_alpha_sizer = wx.BoxSizer(wx.VERTICAL)
74 self._pll_alpha_text_box = forms.text_box(
76 sizer=_pll_alpha_sizer,
78 callback=self.set_pll_alpha,
80 converter=forms.float_converter(),
83 self._pll_alpha_slider = forms.slider(
85 sizer=_pll_alpha_sizer,
87 callback=self.set_pll_alpha,
91 style=wx.SL_HORIZONTAL,
95 self.GridAdd(_pll_alpha_sizer, 0, 0, 1, 1)
97 ##################################################
99 ##################################################
100 self.agr = gr.agc_cc(1e-6, 1.0, 1.0, 1.0)
101 self.gr_add_const_vxx_0 = gr.add_const_vff((48.0, ))
102 self.gr_binary_slicer_fb_0 = gr.binary_slicer_fb()
103 self.gr_char_to_float_0 = gr.char_to_float()
104 self.gr_file_sink_0 = gr.file_sink(gr.sizeof_char*1, "bits.dat")
105 self.gr_float_to_char_0 = gr.float_to_char()
106 self.noaa_hrpt_pll_cf_0 = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset)
107 self.noaa_hrpt_sync_ff_0 = noaa.hrpt_sync_ff(.005, .005*.005/4.0, sps, max_sync_offset)
108 self.rx_fftsink = fftsink2.fft_sink_c(
109 self.displays.GetPage(0).GetWin(),
110 baseband_freq=1698e6,
115 sample_rate=sample_rate,
123 self.displays.GetPage(0).GridAdd(self.rx_fftsink.win, 0, 0, 1, 1)
124 self.src = gr.file_source(gr.sizeof_gr_complex*1, "poes-d16.dat", False)
125 self.throttle = gr.throttle(gr.sizeof_gr_complex*1, sample_rate)
126 self.wxgui_scopesink2_0 = scopesink2.scope_sink_c(
127 self.displays.GetPage(0).GetWin(),
129 sample_rate=sample_rate,
131 t_scale=20.0/sample_rate,
136 self.displays.GetPage(0).GridAdd(self.wxgui_scopesink2_0.win, 1, 0, 1, 1)
137 self.wxgui_scopesink2_0_0 = scopesink2.scope_sink_f(
138 self.displays.GetPage(1).GetWin(),
140 sample_rate=sample_rate,
142 t_scale=20.0/sample_rate,
147 self.displays.GetPage(1).GridAdd(self.wxgui_scopesink2_0_0.win, 0, 0, 1, 1)
148 self.wxgui_scopesink2_0_0_0_0 = scopesink2.scope_sink_f(
149 self.displays.GetPage(1).GetWin(),
151 sample_rate=sym_rate,
153 t_scale=20.0/sym_rate,
158 self.displays.GetPage(1).GridAdd(self.wxgui_scopesink2_0_0_0_0.win, 1, 0, 1, 1)
160 ##################################################
162 ##################################################
163 self.connect((self.src, 0), (self.throttle, 0))
164 self.connect((self.throttle, 0), (self.agr, 0))
165 self.connect((self.agr, 0), (self.rx_fftsink, 0))
166 self.connect((self.agr, 0), (self.wxgui_scopesink2_0, 0))
167 self.connect((self.agr, 0), (self.noaa_hrpt_pll_cf_0, 0))
168 self.connect((self.noaa_hrpt_pll_cf_0, 0), (self.wxgui_scopesink2_0_0, 0))
169 self.connect((self.noaa_hrpt_pll_cf_0, 0), (self.noaa_hrpt_sync_ff_0, 0))
170 self.connect((self.noaa_hrpt_sync_ff_0, 0), (self.gr_binary_slicer_fb_0, 0))
171 self.connect((self.noaa_hrpt_sync_ff_0, 0), (self.wxgui_scopesink2_0_0_0_0, 0))
172 self.connect((self.gr_binary_slicer_fb_0, 0), (self.gr_char_to_float_0, 0))
173 self.connect((self.gr_float_to_char_0, 0), (self.gr_file_sink_0, 0))
174 self.connect((self.gr_add_const_vxx_0, 0), (self.gr_float_to_char_0, 0))
175 self.connect((self.gr_char_to_float_0, 0), (self.gr_add_const_vxx_0, 0))
177 def set_decim(self, decim):
179 self.set_sample_rate(64e6/self.decim)
181 def set_sym_rate(self, sym_rate):
182 self.sym_rate = sym_rate
183 self.set_sps(self.sample_rate/self.sym_rate)
184 self.wxgui_scopesink2_0_0_0_0.set_sample_rate(self.sym_rate)
186 def set_sample_rate(self, sample_rate):
187 self.sample_rate = sample_rate
188 self.set_sps(self.sample_rate/self.sym_rate)
189 self.rx_fftsink.set_sample_rate(self.sample_rate)
190 self.wxgui_scopesink2_0.set_sample_rate(self.sample_rate)
191 self.set_max_carrier_offset(2*math.pi*100e3/self.sample_rate)
192 self.wxgui_scopesink2_0_0.set_sample_rate(self.sample_rate)
194 def set_sps(self, sps):
196 self.set_hs(int(self.sps/2.0))
198 def set_sync_alpha(self, sync_alpha):
199 self.sync_alpha = sync_alpha
200 self._sync_alpha_slider.set_value(self.sync_alpha)
201 self._sync_alpha_text_box.set_value(self.sync_alpha)
203 def set_pll_alpha(self, pll_alpha):
204 self.pll_alpha = pll_alpha
205 self._pll_alpha_slider.set_value(self.pll_alpha)
206 self._pll_alpha_text_box.set_value(self.pll_alpha)
207 self.noaa_hrpt_pll_cf_0.set_alpha(self.pll_alpha)
208 self.noaa_hrpt_pll_cf_0.set_beta(self.pll_alpha**2/4.0)
210 def set_max_sync_offset(self, max_sync_offset):
211 self.max_sync_offset = max_sync_offset
212 self.noaa_hrpt_sync_ff_0.set_max_offset(self.max_sync_offset)
214 def set_max_carrier_offset(self, max_carrier_offset):
215 self.max_carrier_offset = max_carrier_offset
216 self.noaa_hrpt_pll_cf_0.set_max_offset(self.max_carrier_offset)
218 def set_hs(self, hs):
221 if __name__ == '__main__':
222 parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
223 (options, args) = parser.parse_args()