diff options
Diffstat (limited to 'gr-noaa/apps/usrp_rx_hrpt.py')
| -rwxr-xr-x | gr-noaa/apps/usrp_rx_hrpt.py | 43 |
1 files changed, 31 insertions, 12 deletions
diff --git a/gr-noaa/apps/usrp_rx_hrpt.py b/gr-noaa/apps/usrp_rx_hrpt.py index 032db315d..6c50a348a 100755 --- a/gr-noaa/apps/usrp_rx_hrpt.py +++ b/gr-noaa/apps/usrp_rx_hrpt.py @@ -2,7 +2,7 @@ ################################################## # Gnuradio Python Flow Graph # Title: USRP HRPT Receiver -# Generated: Sun Sep 20 12:45:30 2009 +# Generated: Sun Sep 20 19:09:57 2009 ################################################## from gnuradio import eng_notation @@ -20,18 +20,23 @@ import wx class usrp_rx_hrpt(grc_wxgui.top_block_gui): - def __init__(self): + def __init__(self, filename="", decim=16): grc_wxgui.top_block_gui.__init__(self, title="USRP HRPT Receiver") ################################################## + # Parameters + ################################################## + self.filename = filename + self.decim = decim + + ################################################## # 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 = 0.001 + self.sync_alpha = sync_alpha = 0.1 + 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) @@ -98,7 +103,11 @@ class usrp_rx_hrpt(grc_wxgui.top_block_gui): # Blocks ################################################## self.agr = gr.agc_cc(1e-6, 1.0, 1.0, 1.0) + self.gr_deinterleave_0 = gr.deinterleave(gr.sizeof_float*1) self.gr_file_sink_1 = gr.file_sink(gr.sizeof_short*1, "frames.dat") + self.gr_file_source_0 = gr.file_source(gr.sizeof_short*1, "filename", False) + self.gr_float_to_complex_0 = gr.float_to_complex(1) + self.gr_short_to_float_0 = gr.short_to_float() self.matched_filter = gr.moving_average_cc(hs, 1.0/hs, 4000) self.noaa_hrpt_deframer_0 = noaa.hrpt_deframer() self.noaa_hrpt_pll_cf_0 = noaa.hrpt_pll_cf(pll_alpha, pll_alpha**2/4.0, max_carrier_offset) @@ -119,7 +128,6 @@ class usrp_rx_hrpt(grc_wxgui.top_block_gui): 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", False) self.throttle = gr.throttle(gr.sizeof_gr_complex*1, sample_rate) self.wxgui_scopesink2_0 = scopesink2.scope_sink_c( self.displays.GetPage(0).GetWin(), @@ -147,16 +155,23 @@ class usrp_rx_hrpt(grc_wxgui.top_block_gui): ################################################## # Connections ################################################## + self.connect((self.throttle, 0), (self.agr, 0)) self.connect((self.noaa_hrpt_deframer_0, 0), (self.gr_file_sink_1, 0)) self.connect((self.noaa_hrpt_sync_fb_0, 0), (self.noaa_hrpt_deframer_0, 0)) self.connect((self.noaa_hrpt_pll_cf_0, 0), (self.noaa_hrpt_sync_fb_0, 0)) self.connect((self.noaa_hrpt_pll_cf_0, 0), (self.wxgui_scopesink2_0_0, 0)) self.connect((self.agr, 0), (self.wxgui_scopesink2_0, 0)) self.connect((self.agr, 0), (self.rx_fftsink, 0)) - self.connect((self.throttle, 0), (self.agr, 0)) - self.connect((self.src, 0), (self.throttle, 0)) self.connect((self.agr, 0), (self.matched_filter, 0)) self.connect((self.matched_filter, 0), (self.noaa_hrpt_pll_cf_0, 0)) + self.connect((self.gr_float_to_complex_0, 0), (self.throttle, 0)) + self.connect((self.gr_short_to_float_0, 0), (self.gr_deinterleave_0, 0)) + self.connect((self.gr_deinterleave_0, 1), (self.gr_float_to_complex_0, 1)) + self.connect((self.gr_deinterleave_0, 0), (self.gr_float_to_complex_0, 0)) + self.connect((self.gr_file_source_0, 0), (self.gr_short_to_float_0, 0)) + + def set_filename(self, filename): + self.filename = filename def set_decim(self, decim): self.decim = decim @@ -168,11 +183,11 @@ class usrp_rx_hrpt(grc_wxgui.top_block_gui): def set_sample_rate(self, sample_rate): self.sample_rate = sample_rate - self.set_sps(self.sample_rate/self.sym_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.rx_fftsink.set_sample_rate(self.sample_rate) self.wxgui_scopesink2_0.set_sample_rate(self.sample_rate) + self.rx_fftsink.set_sample_rate(self.sample_rate) + self.set_max_carrier_offset(2*math.pi*100e3/self.sample_rate) + self.set_sps(self.sample_rate/self.sym_rate) def set_sps(self, sps): self.sps = sps @@ -206,7 +221,11 @@ class usrp_rx_hrpt(grc_wxgui.top_block_gui): if __name__ == '__main__': parser = OptionParser(option_class=eng_option, usage="%prog: [options]") + parser.add_option("-f", "--filename", dest="filename", type="string", default="", + help="Set Filename [default=%default]") + parser.add_option("-d", "--decim", dest="decim", type="intx", default=16, + help="Set Decimation [default=%default]") (options, args) = parser.parse_args() - tb = usrp_rx_hrpt() + tb = usrp_rx_hrpt(filename=options.filename, decim=options.decim) tb.Run(True) |