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								// Copyright (C) 2023 Edouard Griffiths, F4EXB.                                  //
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								//                                                                               //
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								// This is the code from ft8mon: https://github.com/rtmrtmrtmrtm/ft8mon          //
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								// written by Robert Morris, AB1HL                                               //
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								// reformatted and adapted to Qt and SDRangel context                            //
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								//                                                                               //
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								// This program is free software; you can redistribute it and/or modify          //
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								// it under the terms of the GNU General Public License as published by          //
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								// the Free Software Foundation as version 3 of the License, or                  //
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								// (at your option) any later version.                                           //
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								//                                                                               //
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								// This program is distributed in the hope that it will be useful,               //
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								// but WITHOUT ANY WARRANTY; without even the implied warranty of                //
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								// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                  //
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								// GNU General Public License V3 for more details.                               //
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								//                                                                               //
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								// You should have received a copy of the GNU General Public License             //
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								// along with this program. If not, see <http://www.gnu.org/licenses/>.          //
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								///////////////////////////////////////////////////////////////////////////////////
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								#ifndef osd_h
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								#define osd_h
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								namespace FT8 {
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											2023-01-28 08:58:50 +01:00
										 
									 
								 
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								class OSD
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								{
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								public:
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								    static const int gen_sys[174][91];
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								    static int check_crc(const int a91[91]);
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								    static void ldpc_encode(int plain[91], int codeword[174]);
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								    static float osd_score(int xplain[91], float ll174[174]);
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								    static int osd_check(const int plain[91]);
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								    static void matmul(int a[91][91], int b[91], int c[91]);
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								    static int osd_decode(float codeword[174], int depth, int out[91], int *out_depth);
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								};
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								} // namepsace FT8
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								#endif // osd_h
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