mirror of https://github.com/PentHertz/srsLTE.git
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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#ifndef SRSRAN_CHEST_COMMON_H
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#define SRSRAN_CHEST_COMMON_H
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#include "srsran/config.h"
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#include <stdint.h>
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#define SRSRAN_CHEST_MAX_SMOOTH_FIL_LEN 64
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typedef enum SRSRAN_API {
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SRSRAN_CHEST_FILTER_GAUSS = 0,
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SRSRAN_CHEST_FILTER_TRIANGLE,
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SRSRAN_CHEST_FILTER_NONE
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} srsran_chest_filter_t;
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SRSRAN_API void srsran_chest_average_pilots(cf_t* input,
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cf_t* output,
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float* filter,
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uint32_t nof_ref,
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uint32_t nof_symbols,
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uint32_t filter_len);
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SRSRAN_API uint32_t srsran_chest_set_smooth_filter3_coeff(float* smooth_filter, float w);
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SRSRAN_API float srsran_chest_estimate_noise_pilots(cf_t* noisy, cf_t* noiseless, cf_t* noise_vec, uint32_t nof_pilots);
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SRSRAN_API uint32_t srsran_chest_set_triangle_filter(float* fil, int filter_len);
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SRSRAN_API uint32_t srsran_chest_set_smooth_filter_gauss(float* filter, uint32_t order, float std_dev);
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#endif // SRSRAN_CHEST_COMMON_H
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