GNU Radio Manual and C++ API Reference 3.8.5.0
The Free & Open Software Radio Ecosystem
 
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kurtotic_equalizer_cc.h
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1/* -*- c++ -*- */
2/*
3 * Copyright 2011,2012 Free Software Foundation, Inc.
4 *
5 * This file is part of GNU Radio
6 *
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
10 * any later version.
11 *
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
21 */
22
23#ifndef INCLUDED_DIGITAL_KURTOTIC_EQUALIZER_CC_H
24#define INCLUDED_DIGITAL_KURTOTIC_EQUALIZER_CC_H
25
28
29namespace gr {
30namespace digital {
31
32/*!
33 * \brief Implements a kurtosis-based adaptive equalizer on complex stream
34 * \ingroup equalizers_blk
35 *
36 * \details
37 * Warning: This block does not yet work.
38 *
39 * "Y. Guo, J. Zhao, Y. Sun, "Sign kurtosis maximization based blind
40 * equalization algorithm," IEEE Conf. on Control, Automation,
41 * Robotics and Vision, Vol. 3, Dec. 2004, pp. 2052 - 2057."
42 */
44{
45protected:
46 virtual gr_complex error(const gr_complex& out) = 0;
47 virtual void update_tap(gr_complex& tap, const gr_complex& in) = 0;
48
49public:
50 // gr::digital::kurtotic_equalizer_cc::sptr
51 typedef boost::shared_ptr<kurtotic_equalizer_cc> sptr;
52
53 static sptr make(int num_taps, float mu);
54
55 virtual float gain() const = 0;
56 virtual void set_gain(float mu) = 0;
57};
58
59} /* namespace digital */
60} /* namespace gr */
61
62#endif /* INCLUDED_DIGITAL_KURTOTIC_EQUALIZER_CC_H */
Implements a kurtosis-based adaptive equalizer on complex stream.
Definition kurtotic_equalizer_cc.h:44
virtual float gain() const =0
virtual void set_gain(float mu)=0
static sptr make(int num_taps, float mu)
virtual void update_tap(gr_complex &tap, const gr_complex &in)=0
virtual gr_complex error(const gr_complex &out)=0
boost::shared_ptr< kurtotic_equalizer_cc > sptr
Definition kurtotic_equalizer_cc.h:51
synchronous N:1 input to output with history
Definition sync_decimator.h:38
#define DIGITAL_API
Definition gr-digital/include/gnuradio/digital/api.h:30
std::complex< float > gr_complex
Definition gr_complex.h:27
GNU Radio logging wrapper for log4cpp library (C++ port of log4j)
Definition basic_block.h:46