3 * Copyright 2004,2007 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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8 * it under the terms of the GNU General Public License as published by
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
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23 #ifndef INCLUDED_GR_FRACTIONAL_INTERPOLATOR_CC_H
24 #define INCLUDED_GR_FRACTIONAL_INTERPOLATOR_CC_H
28 class gri_mmse_fir_interpolator_cc;
30 class gr_fractional_interpolator_cc;
31 typedef boost::shared_ptr<gr_fractional_interpolator_cc> gr_fractional_interpolator_cc_sptr;
34 gr_fractional_interpolator_cc_sptr gr_make_fractional_interpolator_cc (float phase_shift, float interp_ratio);
37 * \brief Interpolating mmse filter with gr_complex input, gr_complex output
40 class gr_fractional_interpolator_cc : public gr_block
43 ~gr_fractional_interpolator_cc ();
44 void forecast(int noutput_items, gr_vector_int &ninput_items_required);
45 int general_work (int noutput_items,
46 gr_vector_int &ninput_items,
47 gr_vector_const_void_star &input_items,
48 gr_vector_void_star &output_items);
50 float mu() const { return d_mu;}
51 float interp_ratio() const { return d_mu_inc;}
52 void set_mu (float mu) { d_mu = mu; }
53 void set_interp_ratio (float interp_ratio) { d_mu_inc = interp_ratio; }
56 gr_fractional_interpolator_cc (float phase_shift, float interp_ratio);
61 gri_mmse_fir_interpolator_cc *d_interp;
63 friend gr_fractional_interpolator_cc_sptr
64 gr_make_fractional_interpolator_cc (float phase_shift, float interp_ratio);