diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2012-08-12 19:42:31 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2012-08-12 19:42:31 -0400 |
| commit | 78d149cd3d230ca9310401496e5770401aeb478c (patch) | |
| tree | d7fda81e177653032a62c9c43f68d4a0e3ff4d42 /gr-digital/lib/diff_phasor_cc_impl.cc | |
| parent | a6e56683cf74054fad6774138bea9f844c76be09 (diff) | |
digital: updated blocks to make qa_constellation* tests pass.
Diffstat (limited to 'gr-digital/lib/diff_phasor_cc_impl.cc')
| -rw-r--r-- | gr-digital/lib/diff_phasor_cc_impl.cc | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/gr-digital/lib/diff_phasor_cc_impl.cc b/gr-digital/lib/diff_phasor_cc_impl.cc new file mode 100644 index 0000000000..0e7a108121 --- /dev/null +++ b/gr-digital/lib/diff_phasor_cc_impl.cc @@ -0,0 +1,69 @@ +/* -*- c++ -*- */ +/* + * Copyright 2006,2010,2012 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. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "diff_phasor_cc_impl.h" +#include <gr_io_signature.h> + +namespace gr { + namespace digital { + + diff_phasor_cc::sptr + diff_phasor_cc::make() + { + return gnuradio::get_initial_sptr + (new diff_phasor_cc_impl()); + } + + diff_phasor_cc_impl::diff_phasor_cc_impl() + : gr_sync_block("diff_phasor_cc", + gr_make_io_signature(1, 1, sizeof(gr_complex)), + gr_make_io_signature(1, 1, sizeof(gr_complex))) + { + set_history(2); + } + + diff_phasor_cc_impl::~diff_phasor_cc_impl() + { + } + + int + diff_phasor_cc_impl::work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) + { + gr_complex const *in = (const gr_complex*)input_items[0]; + gr_complex *out = (gr_complex*)output_items[0]; + in += 1; // ensure that i - 1 is valid. + + for(int i = 0; i < noutput_items; i++) { + out[i] = in[i] * conj(in[i-1]); + } + + return noutput_items; + } + + } /* namespace digital */ +} /* namespace gr */ |