3 * Copyright 2004 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
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
9 * the Free Software Foundation; either version 3, or (at your option)
12 * GNU Radio 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.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
23 // WARNING: this file is machine generated. Edits will be over written
29 #include <gr_pll_refout_cc.h>
30 #include <gr_io_signature.h>
31 #include <gr_sincos.h>
35 #define M_TWOPI (2*M_PI)
38 gr_make_pll_refout_cc (float alpha, float beta, float max_freq, float min_freq)
40 return gr_pll_refout_cc_sptr (new gr_pll_refout_cc (alpha, beta, max_freq, min_freq));
43 gr_pll_refout_cc::gr_pll_refout_cc (float alpha, float beta, float max_freq, float min_freq)
44 : gr_sync_block ("pll_refout_cc",
45 gr_make_io_signature (1, 1, sizeof (gr_complex)),
46 gr_make_io_signature (1, 1, sizeof (gr_complex))),
47 d_alpha(alpha), d_beta(beta),
48 d_max_freq(max_freq), d_min_freq(min_freq),
49 d_phase(0), d_freq((max_freq+min_freq)/2)
54 gr_pll_refout_cc::mod_2pi (float in)
65 gr_pll_refout_cc::phase_detector(gr_complex sample,float ref_phase)
68 sample_phase = gr_fast_atan2f(sample.imag(),sample.real());
69 return mod_2pi(sample_phase-ref_phase);
73 gr_pll_refout_cc::work (int noutput_items,
74 gr_vector_const_void_star &input_items,
75 gr_vector_void_star &output_items)
77 const gr_complex *iptr = (gr_complex *) input_items[0];
78 gr_complex *optr = (gr_complex *) output_items[0];
82 int size = noutput_items;
85 error = phase_detector(*iptr++,d_phase);
87 d_freq = d_freq + d_beta * error;
88 d_phase = mod_2pi(d_phase + d_freq + d_alpha * error);
90 if (d_freq > d_max_freq)
92 else if (d_freq < d_min_freq)
94 gr_sincosf(d_phase,&t_imag,&t_real);
95 *optr++ = gr_complex(t_real,t_imag);