GNU Radio Manual and C++ API Reference  3.7.9.2
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descrambler_bb.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2008,2012 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
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
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12  * GNU Radio is distributed in the hope that it will be useful,
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15  * GNU General Public License for more details.
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22 
23 #ifndef INCLUDED_GR_DESCRAMBLER_BB_H
24 #define INCLUDED_GR_DESCRAMBLER_BB_H
25 
26 #include <gnuradio/digital/api.h>
27 #include <gnuradio/sync_block.h>
28 
29 namespace gr {
30  namespace digital {
31 
32  /*!
33  * \brief Descramber an input stream using an LFSR.
34  * \ingroup coding_blk
35  *
36  * \details
37  * Descramble an input stream using an LFSR. This block works on
38  * the LSB only of the input data stream, i.e., on an "unpacked
39  * binary" stream, and produces the same format on its output.
40  */
41  class DIGITAL_API descrambler_bb : virtual public sync_block
42  {
43  public:
44  // gr::digital::descrambler_bb::sptr
45  typedef boost::shared_ptr<descrambler_bb> sptr;
46 
47  /*!
48  * \brief Make a descrambler block.
49  *
50  * \param mask Polynomial mask for LFSR
51  * \param seed Initial shift register contents
52  * \param len Shift register length
53  */
54  static sptr make(int mask, int seed, int len);
55  };
56 
57  } /* namespace digital */
58 } /* namespace gr */
59 
60 #endif /* INCLUDED_GR_DESCRAMBLER_BB_H */
#define DIGITAL_API
Definition: gr-digital/include/gnuradio/digital/api.h:30
Include this header to use the message passing features.
Definition: logger.h:131
boost::shared_ptr< descrambler_bb > sptr
Definition: descrambler_bb.h:45
synchronous 1:1 input to output with historyOverride work to provide the signal processing implementa...
Definition: sync_block.h:37
Descramber an input stream using an LFSR.
Definition: descrambler_bb.h:41