GNU Radio Manual and C++ API Reference  3.7.9.2
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fpll.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2006 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,
20  * Boston, MA 02110-1301, USA.
21  */
22 
23 #ifndef INCLUDED_ATSC_FPLL_H
24 #define INCLUDED_ATSC_FPLL_H
25 
26 #include <gnuradio/atsc/api.h>
27 #include <gnuradio/sync_block.h>
28 #include <gnuradio/nco.h>
30 #include <gnuradio/analog/agc.h>
31 #include <stdio.h>
33 
34 using namespace gr;
35 
36 class atsc_fpll;
37 typedef boost::shared_ptr<atsc_fpll> atsc_fpll_sptr;
38 
39 ATSC_API atsc_fpll_sptr atsc_make_fpll();
40 
41 /*!
42  * \brief ATSC FPLL (2nd Version)
43  * \ingroup atsc
44  *
45  * A/D --> GrFIRfilterFFF ----> GrAtscFPLL ---->
46  *
47  * We use GrFIRfilterFFF to bandpass filter the signal of interest.
48  *
49  * This class accepts a single real input and produces a single real output
50  */
51 
53 {
54  friend ATSC_API atsc_fpll_sptr atsc_make_fpll();
55 
56  atsc_fpll();
57 
58 public:
59 
60  int work (int noutput_items,
61  gr_vector_const_void_star &input_items,
62  gr_vector_void_star &output_items);
63 
64  void reset() { /* nop */ }
65 
66  void initialize () ;
67 
68  protected:
69 
70  double initial_freq;
71  double initial_phase;
74  analog::kernel::agc_ff agc; // automatic gain control
77 
78 
79 };
80 
81 
82 #endif /* INCLUDED_ATSC_FPLL_H */
void reset()
Definition: fpll.h:64
#define ATSC_API
Definition: gr-atsc/include/gnuradio/atsc/api.h:30
filter::single_pole_iir< float, float, float > afci
Definition: fpll.h:75
filter::single_pole_iir< float, float, float > afcq
Definition: fpll.h:76
ATSC FPLL (2nd Version)A/D –> GrFIRfilterFFF -—> GrAtscFPLL -—>
Definition: fpll.h:52
std::vector< const void * > gr_vector_const_void_star
Definition: gnuradio-runtime/include/gnuradio/types.h:38
double initial_phase
Definition: fpll.h:71
std::vector< void * > gr_vector_void_star
Definition: gnuradio-runtime/include/gnuradio/types.h:37
Include this header to use the message passing features.
Definition: logger.h:131
high performance Automatic Gain Control class for float signals.
Definition: agc.h:100
synchronous 1:1 input to output with historyOverride work to provide the signal processing implementa...
Definition: sync_block.h:37
gr::nco< float, float > nco
Definition: fpll.h:73
ATSC_API atsc_fpll_sptr atsc_make_fpll()
double initial_freq
Definition: fpll.h:70
bool debug_no_update
Definition: fpll.h:72
analog::kernel::agc_ff agc
Definition: fpll.h:74