Sun Sep 27 09:51:42 2009 options id demod_hrpt_file _enabled True title USRP HRPT Receiver author description window_size 4096,4096 generate_options no_gui category Custom run True realtime_scheduling _coordinate (10, 10) _rotation 0 variable id max_sync_offset _enabled True value 0.01 _coordinate (705, 19) _rotation 0 variable id max_carrier_offset _enabled True value 2*math.pi*100e3/sample_rate _coordinate (575, 19) _rotation 0 variable id hs _enabled True value int(sps/2.0) _coordinate (499, 19) _rotation 0 variable id sps _enabled True value sample_rate/sym_rate _coordinate (397, 19) _rotation 0 variable id sym_rate _enabled True value 600*1109 _coordinate (301, 19) _rotation 0 variable id sample_rate _enabled True value 64e6/decim _coordinate (198, 17) _rotation 0 import id import_0 _enabled True import import math _coordinate (9, 92) _rotation 0 parameter id filename _enabled True label Filename value usrp.dat type string short_id F _coordinate (200, 101) _rotation 0 parameter id output _enabled True label Output value frames.dat type string short_id o _coordinate (302, 101) _rotation 0 gr_float_to_complex id f2c _enabled True vlen 1 _coordinate (832, 363) _rotation 0 virtual_sink id samples_sink _enabled True stream_id samples _coordinate (1070, 376) _rotation 0 noaa_hrpt_sync_fb id sync _enabled True alpha sync_alpha beta sync_alpha**2/4.0 sps sps max_offset max_sync_offset _coordinate (813, 455) _rotation 0 noaa_hrpt_deframer id deframer _enabled True _coordinate (1037, 483) _rotation 0 gr_file_sink id file_sink _enabled True file output type short vlen 1 _coordinate (1238, 479) _rotation 0 noaa_hrpt_decoder id decoder _enabled True _coordinate (1237, 542) _rotation 0 gr_deinterleave id deinterleave _enabled True type float num_streams 2 vlen 1 _coordinate (628, 363) _rotation 0 parameter id decim _enabled True label Decimation value 16 type intx short_id d _coordinate (415, 101) _rotation 0 parameter id pll_alpha _enabled True label value 0.05 type eng_float short_id p _coordinate (527, 101) _rotation 0 parameter id sync_alpha _enabled True label value 0.05 type eng_float short_id s _coordinate (615, 99) _rotation 0 noaa_hrpt_pll_cf id pll _enabled True alpha pll_alpha beta pll_alpha**2/4.0 max_offset max_carrier_offset _coordinate (606, 463) _rotation 0 virtual_source id samples_source _enabled True stream_id samples _coordinate (164, 479) _rotation 0 gr_short_to_float id s2f _enabled True _coordinate (365, 380) _rotation 0 gr_file_source id file_source _enabled True file filename type short repeat False vlen 1 _coordinate (162, 368) _rotation 0 variable id mf_taps _enabled True value [-0.5/hs,]*hs+[0.5/hs,]*hs _coordinate (829, 21) _rotation 0 gr_fir_filter_xxx id gr_fir_filter_xxx_0 _enabled True type ccc decim 1 taps mf_taps _coordinate (359, 471) _rotation 0 deframer file_sink 0 0 sync deframer 0 0 pll sync 0 0 deinterleave f2c 1 1 deinterleave f2c 0 0 deframer decoder 0 0 f2c samples_sink 0 0 gr_fir_filter_xxx_0 pll 0 0 samples_source gr_fir_filter_xxx_0 0 0 s2f deinterleave 0 0 file_source s2f 0 0