55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/* GMR-1 SDR - FCCH burst */
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/* See GMR-1 05.004 (ETSI TS 101 376-5-4 V1.2.1) - Section 8.1 */
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/* (C) 2011-2019 by Sylvain Munaut <tnt@246tNt.com>
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* All Rights Reserved
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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 Affero General Public License as published by
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* the Free Software Foundation; either 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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero 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 __OSMO_GMR1_SDR_FCCH_H__
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#define __OSMO_GMR1_SDR_FCCH_H__
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/*! \defgroup fcch FCCH bursts
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* \ingroup sdr
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* @{
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*/
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/*! \file sdr/fcch.h
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* \brief Osmocom GMR-1 FCCH bursts header
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*/
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#include <osmocom/dsp/cxvec.h>
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#define GMR1_FCCH_SYMS (39*3) /*!< \brief FCCH burst duration in symbols */
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int gmr1_fcch_rough(struct osmo_cxvec *search_win_in, int sps, float freq_shift,
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int *toa);
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int gmr1_fcch_rough_multi(struct osmo_cxvec *search_win_in, int sps, float freq_shift,
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int *toa, int N);
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int gmr1_fcch_fine(struct osmo_cxvec *burst_in, int sps, float freq_shift,
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int *toa, float *freq_error);
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int gmr1_fcch_snr(struct osmo_cxvec *burst_in, int sps, float freq_shift,
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float *snr);
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/*! @} */
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#endif /* __OSMO_GMR1_SDR_FCCH_H__ */
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