mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-08-24 06:46:33 -04:00
60 lines
2.3 KiB
C++
60 lines
2.3 KiB
C++
/*---------------------------------------------------------------------------*\
|
|
|
|
FILE........: interldpc.h
|
|
AUTHOR......: David Rowe
|
|
DATE CREATED: April 2018
|
|
|
|
Helper functions for interleaved LDPC modems.
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
/*
|
|
Copyright (C) 2018 David Rowe
|
|
|
|
All rights reserved.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License version 2.1, as
|
|
published by the Free Software Foundation. This program 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 Lesser General Public License
|
|
along with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __INTERLDPC__
|
|
#define __INTERLDPC__
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "codec2/comp.h"
|
|
#include "mpdecode_core.h"
|
|
#include "ofdm_internal.h"
|
|
|
|
namespace FreeDV
|
|
{
|
|
|
|
/* CRC type function, used to compare QPSK vectors when debugging */
|
|
|
|
COMP test_acc(COMP v[], int n);
|
|
void printf_n(COMP v[], int n);
|
|
void set_up_hra_112_112(struct LDPC *ldpc, struct OFDM_CONFIG *);
|
|
void ldpc_encode_frame(struct LDPC *ldpc, int codeword[], unsigned char tx_bits_char[]);
|
|
void qpsk_modulate_frame(COMP tx_symbols[], int codeword[], int n);
|
|
void interleaver_sync_state_machine(struct OFDM *ofdm, struct LDPC *ldpc, struct OFDM_CONFIG *config,
|
|
COMP codeword_symbols_de[],
|
|
float codeword_amps_de[],
|
|
float EsNo, int interleave_frames,
|
|
int *inter, int *parityCheckCount, int *Nerrs_coded);
|
|
int count_uncoded_errors(struct LDPC *ldpc, struct OFDM_CONFIG *config, int Nerrs_raw[], int interleave_frames, COMP codeword_symbols_de[]);
|
|
int count_errors(uint8_t tx_bits[], uint8_t rx_bits[], int n);
|
|
void ofdm_ldpc_interleave_tx(struct OFDM *ofdm, struct LDPC *ldpc, std::complex<float> tx_sams[], uint8_t tx_bits[], uint8_t txt_bits[], int interleave_frames, struct OFDM_CONFIG *config);
|
|
void build_modulated_uw(struct OFDM *ofdm, std::complex<float> tx_symbols[], uint8_t txt_bits[], struct OFDM_CONFIG *config);
|
|
|
|
} // FreeDV
|
|
|
|
#endif
|