GNU Radio 3.6.5.1 C++ API
noaa_hrpt_pll_cf.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2009 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
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22 
23 #ifndef INCLUDED_NOAA_HRPT_PLL_CF_H
24 #define INCLUDED_NOAA_HRPT_PLL_CF_H
25 
26 #include <noaa_api.h>
27 #include <gr_sync_block.h>
28 
29 class noaa_hrpt_pll_cf;
31 
32 /*!
33  * \brief NOAA HRPT PLL
34  * \ingroup noaa_blk
35  */
37 noaa_make_hrpt_pll_cf(float alpha, float beta, float max_offset);
38 
40 {
41  friend NOAA_API noaa_hrpt_pll_cf_sptr noaa_make_hrpt_pll_cf(float alpha, float beta, float max_offset);
42  noaa_hrpt_pll_cf(float alpha, float beta, float max_offset);
43 
44  float d_alpha; // 1st order loop constant
45  float d_beta; // 2nd order loop constant
46  float d_max_offset; // Maximum frequency offset, radians/sample
47  float d_phase; // Instantaneous carrier phase
48  float d_freq; // Instantaneous carrier frequency, radians/sample
49 
50  public:
51  virtual int work(int noutput_items,
52  gr_vector_const_void_star &input_items,
53  gr_vector_void_star &output_items);
54 
55  void set_alpha(float alpha) { d_alpha = alpha; }
56  void set_beta(float beta) { d_beta = beta; }
57  void set_max_offset(float max_offset) { d_max_offset = max_offset; }
58 };
59 
60 #endif /* INCLUDED_NOAA_HRPT_PLL_CF_H */