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Diffstat (limited to 'gr-digital/lib/pfb_clock_sync_ccf_impl.h')
| -rw-r--r-- | gr-digital/lib/pfb_clock_sync_ccf_impl.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/gr-digital/lib/pfb_clock_sync_ccf_impl.h b/gr-digital/lib/pfb_clock_sync_ccf_impl.h new file mode 100644 index 0000000000..e5eef37645 --- /dev/null +++ b/gr-digital/lib/pfb_clock_sync_ccf_impl.h @@ -0,0 +1,132 @@ +/* -*- c++ -*- */ +/* + * Copyright 2009,2010,2012 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_DIGITAL_PFB_CLOCK_SYNC_CCF_IMPL_H +#define INCLUDED_DIGITAL_PFB_CLOCK_SYNC_CCF_IMPL_H + +#include <digital/pfb_clock_sync_ccf.h> + +using namespace gr::filter; + +namespace gr { + namespace digital { + + class pfb_clock_sync_ccf_impl : public pfb_clock_sync_ccf + { + private: + bool d_updated; + double d_sps; + double d_sample_num; + float d_loop_bw; + float d_damping; + float d_alpha; + float d_beta; + + int d_nfilters; + int d_taps_per_filter; + std::vector<kernel::fir_filter_ccf*> d_filters; + std::vector<kernel::fir_filter_ccf*> d_diff_filters; + std::vector< std::vector<float> > d_taps; + std::vector< std::vector<float> > d_dtaps; + + float d_k; + float d_rate; + float d_rate_i; + float d_rate_f; + float d_max_dev; + int d_filtnum; + int d_osps; + float d_error; + int d_out_idx; + + void setup_rpc(); + + void create_diff_taps(const std::vector<float> &newtaps, + std::vector<float> &difftaps); + + public: + pfb_clock_sync_ccf_impl(double sps, float loop_bw, + const std::vector<float> &taps, + unsigned int filter_size=32, + float init_phase=0, + float max_rate_deviation=1.5, + int osps=1); + ~pfb_clock_sync_ccf_impl(); + + void update_gains(); + + void set_taps(const std::vector<float> &taps, + std::vector< std::vector<float> > &ourtaps, + std::vector<kernel::fir_filter_ccf*> &ourfilter); + + std::vector< std::vector<float> > taps() const; + std::vector< std::vector<float> > diff_taps() const; + std::vector<float> channel_taps(int channel) const; + std::vector<float> diff_channel_taps(int channel) const; + std::string taps_as_string() const; + std::string diff_taps_as_string() const; + + void set_loop_bandwidth(float bw); + void set_damping_factor(float df); + void set_alpha(float alpha); + void set_beta(float beta); + void set_max_rate_deviation(float m) + { + d_max_dev = m; + } + + float loop_bandwidth() const; + float damping_factor() const; + float alpha() const; + float beta() const; + float clock_rate() const; + + /*! + * \brief Returns the current error of the control loop. + */ + float error() const; + + /*! + * \brief Returns the current rate of the control loop. + */ + float rate() const; + + /*! + * \brief Returns the current phase arm of the control loop. + */ + float phase() const; + + /******************************************************************* + *******************************************************************/ + + bool check_topology(int ninputs, int noutputs); + + int general_work(int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + }; + + } /* namespace digital */ +} /* namespace gr */ + +#endif /* INCLUDED_DIGITAL_PFB_CLOCK_SYNC_CCF_IMPL_H */ |