GNU Radio's SATNOGS Package
doppler_fit.h
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1 /* -*- c++ -*- */
2 /*
3  * gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
4  *
5  * Copyright (C) 2016, Libre Space Foundation <http://librespacefoundation.org/>
6  *
7  * This program 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 of the License, or
10  * (at your option) any later version.
11  *
12  * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
19  */
20 
21 #ifndef INCLUDED_SATNOGS_DOPPLER_FIT_H
22 #define INCLUDED_SATNOGS_DOPPLER_FIT_H
23 
24 #include <satnogs/api.h>
25 #include <deque>
26 #include <mutex>
27 
28 namespace gr {
29 namespace satnogs {
30 
31 /*!
32  * \brief Doppler frequency fitting using Lagrange extrapolation
33  * \ingroup satnogs
34  */
36 public:
37  doppler_fit(size_t degree);
38 
39  void
40  fit(uint64_t x, double y);
41 
42  void
43  predict_freqs(double *freqs, size_t ncorrections,
44  size_t samples_per_correction);
45 
46 private:
47  const size_t d_degree;
48  bool d_ready;
49  std::deque<std::pair<uint64_t, double>> d_data;
50  std::mutex d_mtx;
51 
52  double
53  L(uint64_t x);
54 };
55 
56 } // namespace satnogs
57 } // namespace gr
58 
59 #endif /* INCLUDED_SATNOGS_DOPPLER_FIT_H */
60 
Definition: amsat_duv_decoder.h:29
Doppler frequency fitting using Lagrange extrapolation.
Definition: doppler_fit.h:35
#define SATNOGS_API
Definition: api.h:30