2023-11-18 06:02:48 -05:00
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///////////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2021 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////////
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2021-03-02 00:02:38 -05:00
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/*
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LDPC modulations handler
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Copyright 2018 Ahmet Inan <xdsopl@gmail.com>
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*/
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#include <cstring>
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#include <cmath>
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#include <algorithm>
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#include "psk.h"
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#include "qam.h"
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#include "modulation.h"
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#include "testbench.h"
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using namespace ldpctool;
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template <typename TYPE, typename CODE>
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constexpr typename TYPE::value_type PhaseShiftKeying<4, TYPE, CODE>::rcp_sqrt_2;
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template <typename TYPE, typename CODE>
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constexpr TYPE PhaseShiftKeying<8, TYPE, CODE>::rot_acw;
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template <typename TYPE, typename CODE>
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constexpr TYPE PhaseShiftKeying<8, TYPE, CODE>::rot_cw;
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template <typename TYPE, typename CODE>
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constexpr typename TYPE::value_type QuadratureAmplitudeModulation<16, TYPE, CODE>::AMP;
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template <typename TYPE, typename CODE>
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constexpr typename TYPE::value_type QuadratureAmplitudeModulation<64, TYPE, CODE>::AMP;
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template <typename TYPE, typename CODE>
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constexpr typename TYPE::value_type QuadratureAmplitudeModulation<256, TYPE, CODE>::AMP;
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template <typename TYPE, typename CODE>
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constexpr typename TYPE::value_type QuadratureAmplitudeModulation<1024, TYPE, CODE>::AMP;
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template <int LEN>
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ModulationInterface<complex_type, code_type> *create_modulation(char *name)
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{
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if (!strcmp(name, "BPSK"))
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return new Modulation<PhaseShiftKeying<2, complex_type, code_type>, LEN>();
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if (!strcmp(name, "QPSK"))
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return new Modulation<PhaseShiftKeying<4, complex_type, code_type>, LEN / 2>();
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if (!strcmp(name, "8PSK"))
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return new Modulation<PhaseShiftKeying<8, complex_type, code_type>, LEN / 3>();
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if (!strcmp(name, "QAM16"))
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return new Modulation<QuadratureAmplitudeModulation<16, complex_type, code_type>, LEN / 4>();
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if (!strcmp(name, "QAM64"))
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return new Modulation<QuadratureAmplitudeModulation<64, complex_type, code_type>, LEN / 6>();
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if (!strcmp(name, "QAM256"))
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return new Modulation<QuadratureAmplitudeModulation<256, complex_type, code_type>, LEN / 8>();
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if (!strcmp(name, "QAM1024"))
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return new Modulation<QuadratureAmplitudeModulation<1024, complex_type, code_type>, LEN / 10>();
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return 0;
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}
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ModulationInterface<complex_type, code_type> *create_modulation(char *name, int len)
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{
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switch (len) {
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case 16200:
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return create_modulation<16200>(name);
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case 32400:
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return create_modulation<32400>(name);
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case 64800:
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return create_modulation<64800>(name);
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}
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return 0;
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}
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