GNU Radio 3.6.4.1 C++ API
pll_carriertracking_cc.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2004,2006,2011,2012 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
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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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22 
23 #ifndef INCLUDED_ANALOG_PLL_CARRIERTRACKING_CC_H
24 #define INCLUDED_ANALOG_PLL_CARRIERTRACKING_CC_H
25 
26 #include <analog/api.h>
27 #include <gr_sync_block.h>
28 
29 namespace gr {
30  namespace analog {
31 
32  /*!
33  * \brief Implements a PLL which locks to the input frequency and outputs the
34  * input signal mixed with that carrier.
35  * \ingroup sync_blk
36  *
37  * Input stream 0: complex
38  * Output stream 0: complex
39  *
40  * This PLL locks onto a [possibly noisy] reference carrier on the
41  * input and outputs that signal, downconverted to DC
42  *
43  * All settings max_freq and min_freq are in terms of radians per
44  * sample, NOT HERTZ. The loop bandwidth determins the lock range
45  * and should be set around pi/200 -- 2pi/100. \sa
46  * pll_freqdet_cf, pll_carriertracking_cc
47  */
49  {
50  public:
51  // gr::analog::pll_carriertracking_cc::sptr
53 
54  /* \brief Make a carrier tracking PLL block.
55  *
56  * \param loop_bw: control loop's bandwidth parameter.
57  * \param max_freq: maximum (normalized) frequency PLL will lock to.
58  * \param min_freq: minimum (normalized) frequency PLL will lock to.
59  */
60  static sptr make(float loop_bw, float max_freq, float min_freq);
61 
62  virtual bool lock_detector(void) = 0;
63  virtual bool squelch_enable(bool) = 0;
64  virtual float set_lock_threshold(float) = 0;
65 
66  virtual void set_loop_bandwidth(float bw) = 0;
67  virtual void set_damping_factor(float df) = 0;
68  virtual void set_alpha(float alpha) = 0;
69  virtual void set_beta(float beta) = 0;
70  virtual void set_frequency(float freq) = 0;
71  virtual void set_phase(float phase) = 0;
72  virtual void set_min_freq(float freq) = 0;
73  virtual void set_max_freq(float freq) = 0;
74 
75  virtual float get_loop_bandwidth() const = 0;
76  virtual float get_damping_factor() const = 0;
77  virtual float get_alpha() const = 0;
78  virtual float get_beta() const = 0;
79  virtual float get_frequency() const = 0;
80  virtual float get_phase() const = 0;
81  virtual float get_min_freq() const = 0;
82  virtual float get_max_freq() const = 0;
83  };
84 
85  } /* namespace analog */
86 } /* namespace gr */
87 
88 #endif /* INCLUDED_ANALOG_PLL_CARRIERTRACKING_CC_H */