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gnss-sdr/src/algorithms/input_filter/gnuradio_blocks/notch_cc.cc

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/*!
* \file notch_cc.cc
* \brief Implements a multi state notch filter algorithm
* \author Antonio Ramos (antonio.ramosdet(at)gmail.com)
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2017 (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/>.
*
* -------------------------------------------------------------------------
*/
#include "notch_cc.h"
#include <boost/math/distributions/chi_squared.hpp>
#include <cmath>
#include <complex>
#include <gnuradio/block.h>
#include <gnuradio/io_signature.h>
notch_sptr make_notch_filter(double pfa, double p_c_factor,
unsigned int length_)
{
return notch_sptr(new Notch(pfa, p_c_factor, length_));
}
Notch::Notch(double pfa, double p_c_factor, unsigned int length_) : gr::block("Notch",
gr::io_signature::make (1, 1, sizeof(gr_complex)),
gr::io_signature::make (1, 1, sizeof(gr_complex)))
{
this->pfa = pfa;
this->noise_pow_est = 0.0;
this->p_c_factor = p_c_factor;
this->length_ = length_;
filter_state_ = 0;
n_deg_fred = 2 * length_;
z_0 = gr_complex(0 , 0);
thres_ =
}
int Notch::general_work(int noutput_items __attribute__((unused)), gr_vector_int &ninput_items __attribute__((unused)),
gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
{
}