3 # Copyright 2007 Free Software Foundation, Inc.
5 # This file is part of GNU Radio
7 # GNU Radio is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3, or (at your option)
12 # GNU Radio is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with GNU Radio; see the file COPYING. If not, write to
19 # the Free Software Foundation, Inc., 51 Franklin Street,
20 # Boston, MA 02110-1301, USA.
23 from gnuradio import gr, usrp, eng_notation
26 n2s = eng_notation.num_to_str
28 class sounder_tx(gr.hier_block2):
30 Creates a channel sounder generator with the given parameters.
33 def __init__(self, degree, chip_rate, verbose):
34 gr.hier_block2.__init__(self,
35 "sounder_tx", # Block typename
36 gr.io_signature(0,0,0), # Input signature
37 gr.io_signature(1, 1, gr.sizeof_float)) # Output signature
40 self._chip_rate = chip_rate
41 self._verbose = verbose
42 self._length = 2**degree-1
44 # Connect PN source to block output
45 self.connect(gr.glfsr_source_f(degree), self)