diff options
Diffstat (limited to 'gr-atsc/src/lib/atsci_fake_single_viterbi.cc')
-rw-r--r-- | gr-atsc/src/lib/atsci_fake_single_viterbi.cc | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/gr-atsc/src/lib/atsci_fake_single_viterbi.cc b/gr-atsc/src/lib/atsci_fake_single_viterbi.cc deleted file mode 100644 index 6246a9050..000000000 --- a/gr-atsc/src/lib/atsci_fake_single_viterbi.cc +++ /dev/null @@ -1,72 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2002 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. - */ - -#include <math.h> -#include <atsci_fake_single_viterbi.h> -#include <iostream> -#include <algorithm> - -using std::cerr; -using std::cout; - -void -atsci_fake_single_viterbi::reset() -{ - post_coder_state = 0; -} - -atsci_fake_single_viterbi::atsci_fake_single_viterbi() -{ - reset(); -} - -/* - * implement simple slicer and post coder - */ -char -atsci_fake_single_viterbi::decode (float input) -{ - int y2, y1; - - if (input < -4){ - y2 = 0; - y1 = 0; - } - else if (input < 0){ - y2 = 0; - y1 = 1; - } - else if (input < 4){ - y2 = 1; - y1 = 0; - } - else { - y2 = 1; - y1 = 1; - } - - int x1 = y1; - int x2 = y2 ^ post_coder_state; - post_coder_state = y2; - - return (x2 << 1) | x1; -} |