qa_pn_correlator_cc.py

这是用python语言写的一个数字广播的信号处理工具包。利用它

#!/usr/bin/env python
#
# Copyright 2007 Free Software Foundation, Inc.
# 
# This file is part of GNU Radio
# 
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
# 
# GNU Radio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING.  If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
# 

from gnuradio import gr, gr_unittest

class test_pn_correlator_cc(gr_unittest.TestCase):

    def setUp(self):
        self.fg = gr.flow_graph ()

    def tearDown(self):
        self.fg = None

    def test_000_make(self):
        c = gr.pn_correlator_cc(10)

    def test_001_correlate(self):
        degree = 10
        length = 2**degree-1
        src = gr.glfsr_source_f(degree)
        head = gr.head(gr.sizeof_float, length*length)
        f2c = gr.float_to_complex()
        corr = gr.pn_correlator_cc(degree)
        dst = gr.vector_sink_c()
        self.fg.connect(src, head, f2c, corr, dst)
        self.fg.run()
        data = dst.data()
        self.assertEqual(data[-1], (1.0+0j))
        
if __name__ == '__main__':
    gr_unittest.main ()