GNU Radio 3.6.4.1 C++ API
digital_diff_phasor_cc.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2006,2012 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
9  * the Free Software Foundation; either version 3, or (at your option)
10  * any later version.
11  *
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.
16  *
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,
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21  */
22 
23 #ifndef INCLUDED_GR_DIFF_PHASOR_CC_H
24 #define INCLUDED_GR_DIFF_PHASOR_CC_H
25 
26 #include <digital_api.h>
27 #include <gr_sync_block.h>
28 
29 /*!
30  * \brief Differential decoding based on phase change.
31  * \ingroup coding_blk
32  *
33  * Uses the phase difference between two symbols to determine the
34  * output symbol:
35  *
36  * out[i] = in[i] * conj(in[i-1]);
37  */
40 
42 
43 
45 {
48 
49  digital_diff_phasor_cc(); //constructor
50 
51  public:
52  ~digital_diff_phasor_cc(); //destructor
53 
54  int work(int noutput_items,
55  gr_vector_const_void_star &input_items,
56  gr_vector_void_star &output_items);
57 };
58 
59 #endif