mirror of https://github.com/gnss-sdr/gnss-sdr
51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
/*!
|
|
* \file tracking_FLL_PLL_filter.h
|
|
* \brief Interface of a hybrid FLL and PLL filter for tracking carrier loop
|
|
* \author Javier Arribas, 2011. jarribas(at)cttc.es
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*
|
|
* Copyright (C) 2010-2019 (see AUTHORS file for a list of contributors)
|
|
*
|
|
* GNSS-SDR is a software defined Global Navigation
|
|
* Satellite Systems receiver
|
|
*
|
|
* This file is part of GNSS-SDR.
|
|
*
|
|
* SPDX-License-Identifier: GPL-3.0-or-later
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*/
|
|
|
|
#ifndef GNSS_SDR_TRACKING_FLL_PLL_FILTER_H
|
|
#define GNSS_SDR_TRACKING_FLL_PLL_FILTER_H
|
|
|
|
/*!
|
|
* \brief This class implements a hybrid FLL and PLL filter for tracking carrier loop
|
|
*/
|
|
class Tracking_FLL_PLL_filter
|
|
{
|
|
public:
|
|
Tracking_FLL_PLL_filter();
|
|
~Tracking_FLL_PLL_filter() = default;
|
|
void set_params(float fll_bw_hz, float pll_bw_hz, int order);
|
|
void initialize(float d_acq_carrier_doppler_hz);
|
|
float get_carrier_error(float FLL_discriminator, float PLL_discriminator, float correlation_time_s);
|
|
|
|
private:
|
|
// FLL + PLL filter parameters
|
|
float d_pll_w;
|
|
float d_pll_w0p3;
|
|
float d_pll_w0f2;
|
|
float d_pll_x;
|
|
float d_pll_a2;
|
|
float d_pll_w0f;
|
|
float d_pll_a3;
|
|
float d_pll_w0p2;
|
|
float d_pll_b3;
|
|
float d_pll_w0p;
|
|
int d_order;
|
|
};
|
|
|
|
#endif
|