GNU Radio Manual and C++ API Reference 3.9.8.0
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 * SPDX-License-Identifier: GPL-3.0-or-later
8 *
9 */
10
11#ifndef INCLUDED_DIGITAL_KURTOTIC_EQUALIZER_CC_H
12#define INCLUDED_DIGITAL_KURTOTIC_EQUALIZER_CC_H
13
16
17namespace gr {
18namespace digital {
19
20/*!
21 * \brief Implements a kurtosis-based adaptive equalizer on complex stream
22 * \ingroup equalizers_blk
23 * \ingroup deprecated_blk
24 *
25 * \details
26 * Warning: This block does not yet work.
27 *
28 * "Y. Guo, J. Zhao, Y. Sun, "Sign kurtosis maximization based blind
29 * equalization algorithm," IEEE Conf. on Control, Automation,
30 * Robotics and Vision, Vol. 3, Dec. 2004, pp. 2052 - 2057."
31 */
33{
34protected:
35 virtual gr_complex error(const gr_complex& out) = 0;
36 virtual void update_tap(gr_complex& tap, const gr_complex& in) = 0;
37
38public:
39 // gr::digital::kurtotic_equalizer_cc::sptr
40 typedef std::shared_ptr<kurtotic_equalizer_cc> sptr;
41
42 static sptr make(int num_taps, float mu);
43
44 virtual float gain() const = 0;
45 virtual void set_gain(float mu) = 0;
46};
47
48} /* namespace digital */
49} /* namespace gr */
50
51#endif /* INCLUDED_DIGITAL_KURTOTIC_EQUALIZER_CC_H */
Implements a kurtosis-based adaptive equalizer on complex stream.
Definition: kurtotic_equalizer_cc.h:33
virtual float gain() const =0
virtual void set_gain(float mu)=0
std::shared_ptr< kurtotic_equalizer_cc > sptr
Definition: kurtotic_equalizer_cc.h:40
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
synchronous N:1 input to output with history
Definition: sync_decimator.h:26
#define DIGITAL_API
Definition: gr-digital/include/gnuradio/digital/api.h:18
std::complex< float > gr_complex
Definition: gr_complex.h:15
GNU Radio logging wrapper for log4cpp library (C++ port of log4j)
Definition: basic_block.h:29