mirror of https://github.com/gnss-sdr/gnss-sdr
60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
/*!
|
|
* \file tracking_FLL_PLL_filter.h
|
|
* \brief Class that implements hybrid FLL and PLL filter for tracking carrier loop
|
|
* \author Javier Arribas, 2011. jarribas(at)cttc.es
|
|
*
|
|
* Class that implements hybrid FLL and PLL filter for tracking carrier loop
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*
|
|
* Copyright (C) 2010-2011 (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.
|
|
*
|
|
* GNSS-SDR 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.
|
|
*
|
|
* GNSS-SDR 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 GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*/
|
|
|
|
#ifndef TRACKING_FLL_PLL_FILTER_H_
|
|
#define TRACKING_FLL_PLL_FILTER_H_
|
|
|
|
class tracking_FLL_PLL_filter
|
|
{
|
|
private:
|
|
// FLL + PLL filter parameters
|
|
int d_order;
|
|
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;
|
|
public:
|
|
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);
|
|
tracking_FLL_PLL_filter();
|
|
~tracking_FLL_PLL_filter();
|
|
};
|
|
|
|
#endif
|