3 * Copyright 2008 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.
28 #include <gr_iqcomp_cc.h>
29 #include <gr_io_signature.h>
32 gr_make_iqcomp_cc (float mu)
34 return gr_iqcomp_cc_sptr (new gr_iqcomp_cc (mu));
37 gr_iqcomp_cc::gr_iqcomp_cc (float mu)
38 : gr_sync_block ("iqcomp_cc",
39 gr_make_io_signature (1, 1, sizeof (gr_complex)),
40 gr_make_io_signature (1, 1, sizeof (gr_complex))),
48 gr_iqcomp_cc::work (int noutput_items,
49 gr_vector_const_void_star &input_items,
50 gr_vector_void_star &output_items)
52 const gr_complex *iptr = (gr_complex *) input_items[0];
53 // gr_complex *optr = (gr_complex *) output_items[0];
55 for(int i = 0 ; i < noutput_items ; i++) {
56 float i_out = iptr[i].real() - iptr[i].imag() * d_wq;
57 float q_out = iptr[i].imag() - iptr[i].real() * d_wi;
58 d_wi += d_mu * q_out * iptr[i].real();
59 d_wq += d_mu * i_out * iptr[i].imag();