mirror of https://github.com/PentHertz/srsLTE.git
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/*
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* Copyright 2013-2019 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE 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
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE 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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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#ifndef SRSLTE_HST_H_
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#define SRSLTE_HST_H_
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#include <srslte/srslte.h>
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typedef struct {
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// System parameters
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uint32_t srate_hz; // Sampling rate
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// Model Parameters
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float fd_hz; // Maximum Doppler Frequency
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float ds_m; // eNb distance [m]
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float dmin_m; // eNb Rail-track distance [m]
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float period_s; // 2 * Ds / speed [s]
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float init_time_s; // Time offset [s]
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// State
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float fs_hz; // Last doppler dispersion [Hz]
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} srslte_channel_hst_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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SRSLTE_API int srslte_channel_hst_init(srslte_channel_hst_t* q, float fd_hz, float period_d, float init_time_s);
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SRSLTE_API void srslte_channel_hst_update_srate(srslte_channel_hst_t* q, uint32_t srate);
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SRSLTE_API void
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srslte_channel_hst_execute(srslte_channel_hst_t* q, cf_t* in, cf_t* out, uint32_t len, const srslte_timestamp_t* ts);
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SRSLTE_API void srslte_channel_hst_free(srslte_channel_hst_t* q);
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#ifdef __cplusplus
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}
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#endif
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#endif // SRSLTE_HST_H_
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