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										 |  |  | ///////////////////////////////////////////////////////////////////////////////////
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										 |  |  | // Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
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							|  |  |  | // written by Christian Daniel                                                   //
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							|  |  |  | // Copyright (C) 2015-2019, 2023 Edouard Griffiths, F4EXB <f4exb06@gmail.com>    //
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										 |  |  | //                                                                               //
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							|  |  |  | // This is the code from ft8mon: https://github.com/rtmrtmrtmrtm/ft8mon          //
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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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										 |  |  | class OSD | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  | public: | 
					
						
							|  |  |  |     static const int gen_sys[174][91]; | 
					
						
							|  |  |  |     static int check_crc(const int a91[91]); | 
					
						
							|  |  |  |     static void ldpc_encode(int plain[91], int codeword[174]); | 
					
						
							|  |  |  |     static float osd_score(int xplain[91], float ll174[174]); | 
					
						
							|  |  |  |     static int osd_check(const int plain[91]); | 
					
						
							|  |  |  |     static void matmul(int a[91][91], int b[91], int c[91]); | 
					
						
							|  |  |  |     static int osd_decode(float codeword[174], int depth, int out[91], int *out_depth); | 
					
						
							|  |  |  | }; | 
					
						
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										 |  |  | } // namespace FT8
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							|  |  |  | #endif // osd_h
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