OpenRTX/openrtx/include/calibration/calibUtils.h

46 wiersze
2.5 KiB
C

/***************************************************************************
* Copyright (C) 2020 by Federico Amedeo Izzo IU2NUO, *
* Niccolò Izzo IU2KIN, *
* Silvano Seva IU2KWO *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 3 of the License, or *
* (at your option) any later version. *
* *
* 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 General Public License *
* along with this program; if not, see <http://www.gnu.org/licenses/> *
***************************************************************************/
#ifndef CALIB_UTILS_H
#define CALIB_UTILS_H
#include <datatypes.h>
#include <stdint.h>
/**
* This function allows to obtain the value of a given calibration parameter for
* frequencies outside the calibration points. It works by searching the two
* calibration points containing the target frequency and then by linearly
* interpolating the calibration parameter among these two points.
* @param freq: target frequency for which a calibration value has to be
* computed.
* @param calPoints: pointer to the vector containing the frequencies of the
* calibration points.
* @param param: pointer to the vector containing the values for the calibration
* parameter, it must have the same length of the one containing the frequencies
* of calibration points.
* @param elems: number of elements of both the vectors for calibration parameter
* and frequencies.
* @return value for the calibration parameter at the given frequency point.
*/
uint8_t interpCalParameter(const freq_t freq, const freq_t *calPoints,
const uint8_t *param, const uint8_t elems);
#endif /* CALIB_UTILS_H */