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Diffstat (limited to 'gr-digital/include/digital/cpmmod_bc.h')
| -rw-r--r-- | gr-digital/include/digital/cpmmod_bc.h | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/gr-digital/include/digital/cpmmod_bc.h b/gr-digital/include/digital/cpmmod_bc.h deleted file mode 100644 index 13c778943c..0000000000 --- a/gr-digital/include/digital/cpmmod_bc.h +++ /dev/null @@ -1,117 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2010,2012 Free Software Foundation, Inc. - * - * This file is part of GNU Radio - * - * GNU Radio 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, or (at your option) - * any later version. - * - * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, - * Boston, MA 02110-1301, USA. - */ - -#ifndef INCLUDED_DIGITAL_CPMMOD_BC_H -#define INCLUDED_DIGITAL_CPMMOD_BC_H - -#include <digital/api.h> -#include <gnuradio/hier_block2.h> -#include <gnuradio/analog/cpm.h> - -namespace gr { - namespace digital { - - /*! - * \brief Generic CPM modulator - * \ingroup modulators_blk - * - * \details - * Examples: - * - Setting h = 0.5, L = 1, type = LREC yields MSK. - * - Setting h = 0.5, type = GAUSSIAN and beta = 0.3 yields GMSK - * as used in GSM. - * - * The input of this block are symbols from an M-ary alphabet - * +/-1, +/-3, ..., +/-(M-1). Usually, M = 2 and therefore, the - * valid inputs are +/-1. - * The modulator will silently accept any other inputs, though. - * The output is the phase-modulated signal. - */ - class DIGITAL_API cpmmod_bc : virtual public hier_block2 - { - public: - // gr::digital::cpmmod_bc::sptr - typedef boost::shared_ptr<cpmmod_bc> sptr; - - /*! - * Make CPM modulator block. - * - * \param type The modulation type. Can be one of LREC, LRC, LSRC, TFM - * or GAUSSIAN. See gr_cpm::phase_response() for a - * detailed description. - * \param h The modulation index. \f$ h \cdot \pi\f$ is the maximum - * phase change that can occur between two symbols, i.e., if - * you only send ones, the phase will increase by \f$ h \cdot - * \pi\f$ every \p samples_per_sym samples. Set this to 0.5 - * for Minimum Shift Keying variants. - * \param samples_per_sym Samples per symbol. - * \param L The length of the phase duration in symbols. For L=1, this - * yields full- response CPM symbols, for L > 1, - * partial-response. - * \param beta For LSRC, this is the rolloff factor. For Gaussian - * pulses, this is the 3 dB time-bandwidth product. - */ - static sptr make(analog::cpm::cpm_type type, float h, - int samples_per_sym, - int L, double beta=0.3); - - /*! - * Make GMSK modulator block. - * - * The type is GAUSSIAN and the modulation index for GMSK is - * 0.5. This are populated automatically by this factory - * function. - * - * \param samples_per_sym Samples per symbol. - * \param L The length of the phase duration in symbols. For L=1, this - * yields full- response CPM symbols, for L > 1, - * partial-response. - * \param beta For LSRC, this is the rolloff factor. For Gaussian - * pulses, this is the 3 dB time-bandwidth product. - */ - static sptr make_gmskmod_bc(int samples_per_sym=2, - int L=4, double beta=0.3); - - //! Return the phase response FIR taps - virtual std::vector<float> taps() const = 0; - - //! Return the type of CPM modulator - virtual int type() const = 0; - - //! Return the modulation index of the modulator. - virtual float index() const = 0; - - //! Return the number of samples per symbol - virtual int samples_per_sym() const = 0; - - //! Return the length of the phase duration (in symbols) - virtual int length() const = 0; - - //! Return the value of beta for the modulator - virtual double beta() const = 0; - }; - - } /* namespace digital */ -} /* namespace gr */ - -#endif /* INCLUDED_DIGITAL_CPMMOD_BC_H */ - |