diff options
Diffstat (limited to 'gr-dtv/lib/dvbt2/dvbt2_modulator_bc_impl.cc')
| -rw-r--r-- | gr-dtv/lib/dvbt2/dvbt2_modulator_bc_impl.cc | 964 |
1 files changed, 964 insertions, 0 deletions
diff --git a/gr-dtv/lib/dvbt2/dvbt2_modulator_bc_impl.cc b/gr-dtv/lib/dvbt2/dvbt2_modulator_bc_impl.cc new file mode 100644 index 0000000000..48fe2aa43e --- /dev/null +++ b/gr-dtv/lib/dvbt2/dvbt2_modulator_bc_impl.cc @@ -0,0 +1,964 @@ +/* -*- c++ -*- */ +/* + * Copyright 2015 Free Software Foundation, Inc. + * + * This 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. + * + * This software 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 this software; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gnuradio/io_signature.h> +#include "dvbt2_modulator_bc_impl.h" + +namespace gr { + namespace dtv { + + dvbt2_modulator_bc::sptr + dvbt2_modulator_bc::make(dvb_framesize_t framesize, dvb_constellation_t constellation, dvbt2_rotation_t rotation) + { + return gnuradio::get_initial_sptr + (new dvbt2_modulator_bc_impl(framesize, constellation, rotation)); + } + + /* + * The private constructor + */ + dvbt2_modulator_bc_impl::dvbt2_modulator_bc_impl(dvb_framesize_t framesize, dvb_constellation_t constellation, dvbt2_rotation_t rotation) + : gr::block("dvbt2_modulator_bc", + gr::io_signature::make(1, 1, sizeof(unsigned char)), + gr::io_signature::make(1, 1, sizeof(gr_complex))) + { + double normalization; + double rotation_angle; + gr_complex m_temp[1]; + cyclic_delay = FALSE; + if (framesize == FECFRAME_NORMAL) { + switch (constellation) { + case MOD_QPSK: + cell_size = 32400; + break; + case MOD_16QAM: + cell_size = 16200; + break; + case MOD_64QAM: + cell_size = 10800; + break; + case MOD_256QAM: + cell_size = 8100; + break; + default: + cell_size = 0; + break; + } + } + else { + switch (constellation) { + case MOD_QPSK: + cell_size = 8100; + break; + case MOD_16QAM: + cell_size = 4050; + break; + case MOD_64QAM: + cell_size = 2700; + break; + case MOD_256QAM: + cell_size = 2025; + break; + default: + cell_size = 0; + break; + } + } + switch (constellation) { + case MOD_QPSK: + normalization = sqrt(2); + m_qpsk[0].real() = 1.0 / normalization; + m_qpsk[0].imag() = 1.0 / normalization; + m_qpsk[1].real() = 1.0 / normalization; + m_qpsk[1].imag() = -1.0 / normalization; + m_qpsk[2].real() = -1.0 / normalization; + m_qpsk[2].imag() = 1.0 / normalization; + m_qpsk[3].real() = -1.0 / normalization; + m_qpsk[3].imag() = -1.0 / normalization; + if (rotation == ROTATION_ON) { + cyclic_delay = TRUE; + rotation_angle = (2.0 * M_PI * 29.0) / 360; + for (int i = 0; i < 4; i++) { + m_temp[0].real() = m_qpsk[i].real(); + m_qpsk[i].real() = (m_qpsk[i].real() * cos(rotation_angle)) - (m_qpsk[i].imag() * sin(rotation_angle)); + m_qpsk[i].imag() = (m_temp[0].real() * sin(rotation_angle)) + (m_qpsk[i].imag() * cos(rotation_angle)); + } + } + break; + case MOD_16QAM: + normalization = sqrt(10); + m_16qam[0].real() = 3.0 / normalization; + m_16qam[0].imag() = 3.0 / normalization; + m_16qam[1].real() = 3.0 / normalization; + m_16qam[1].imag() = 1.0 / normalization; + m_16qam[2].real() = 1.0 / normalization; + m_16qam[2].imag() = 3.0 / normalization; + m_16qam[3].real() = 1.0 / normalization; + m_16qam[3].imag() = 1.0 / normalization; + m_16qam[4].real() = 3.0 / normalization; + m_16qam[4].imag() = -3.0 / normalization; + m_16qam[5].real() = 3.0 / normalization; + m_16qam[5].imag() = -1.0 / normalization; + m_16qam[6].real() = 1.0 / normalization; + m_16qam[6].imag() = -3.0 / normalization; + m_16qam[7].real() = 1.0 / normalization; + m_16qam[7].imag() = -1.0 / normalization; + m_16qam[8].real() = -3.0 / normalization; + m_16qam[8].imag() = 3.0 / normalization; + m_16qam[9].real() = -3.0 / normalization; + m_16qam[9].imag() = 1.0 / normalization; + m_16qam[10].real() = -1.0 / normalization; + m_16qam[10].imag() = 3.0 / normalization; + m_16qam[11].real() = -1.0 / normalization; + m_16qam[11].imag() = 1.0 / normalization; + m_16qam[12].real() = -3.0 / normalization; + m_16qam[12].imag() = -3.0 / normalization; + m_16qam[13].real() = -3.0 / normalization; + m_16qam[13].imag() = -1.0 / normalization; + m_16qam[14].real() = -1.0 / normalization; + m_16qam[14].imag() = -3.0 / normalization; + m_16qam[15].real() = -1.0 / normalization; + m_16qam[15].imag() = -1.0 / normalization; + if (rotation == ROTATION_ON) { + cyclic_delay = TRUE; + rotation_angle = (2.0 * M_PI * 16.8) / 360; + for (int i = 0; i < 16; i++) { + m_temp[0].real() = m_16qam[i].real(); + m_16qam[i].real() = (m_16qam[i].real() * cos(rotation_angle)) - (m_16qam[i].imag() * sin(rotation_angle)); + m_16qam[i].imag() = (m_temp[0].real() * sin(rotation_angle)) + (m_16qam[i].imag() * cos(rotation_angle)); + } + } + break; + case MOD_64QAM: + normalization = sqrt(42); + m_64qam[0].real() = 7.0 / normalization; + m_64qam[0].imag() = 7.0 / normalization; + m_64qam[1].real() = 7.0 / normalization; + m_64qam[1].imag() = 5.0 / normalization; + m_64qam[2].real() = 5.0 / normalization; + m_64qam[2].imag() = 7.0 / normalization; + m_64qam[3].real() = 5.0 / normalization; + m_64qam[3].imag() = 5.0 / normalization; + m_64qam[4].real() = 7.0 / normalization; + m_64qam[4].imag() = 1.0 / normalization; + m_64qam[5].real() = 7.0 / normalization; + m_64qam[5].imag() = 3.0 / normalization; + m_64qam[6].real() = 5.0 / normalization; + m_64qam[6].imag() = 1.0 / normalization; + m_64qam[7].real() = 5.0 / normalization; + m_64qam[7].imag() = 3.0 / normalization; + m_64qam[8].real() = 1.0 / normalization; + m_64qam[8].imag() = 7.0 / normalization; + m_64qam[9].real() = 1.0 / normalization; + m_64qam[9].imag() = 5.0 / normalization; + m_64qam[10].real() = 3.0 / normalization; + m_64qam[10].imag() = 7.0 / normalization; + m_64qam[11].real() = 3.0 / normalization; + m_64qam[11].imag() = 5.0 / normalization; + m_64qam[12].real() = 1.0 / normalization; + m_64qam[12].imag() = 1.0 / normalization; + m_64qam[13].real() = 1.0 / normalization; + m_64qam[13].imag() = 3.0 / normalization; + m_64qam[14].real() = 3.0 / normalization; + m_64qam[14].imag() = 1.0 / normalization; + m_64qam[15].real() = 3.0 / normalization; + m_64qam[15].imag() = 3.0 / normalization; + m_64qam[16].real() = 7.0 / normalization; + m_64qam[16].imag() = -7.0 / normalization; + m_64qam[17].real() = 7.0 / normalization; + m_64qam[17].imag() = -5.0 / normalization; + m_64qam[18].real() = 5.0 / normalization; + m_64qam[18].imag() = -7.0 / normalization; + m_64qam[19].real() = 5.0 / normalization; + m_64qam[19].imag() = -5.0 / normalization; + m_64qam[20].real() = 7.0 / normalization; + m_64qam[20].imag() = -1.0 / normalization; + m_64qam[21].real() = 7.0 / normalization; + m_64qam[21].imag() = -3.0 / normalization; + m_64qam[22].real() = 5.0 / normalization; + m_64qam[22].imag() = -1.0 / normalization; + m_64qam[23].real() = 5.0 / normalization; + m_64qam[23].imag() = -3.0 / normalization; + m_64qam[24].real() = 1.0 / normalization; + m_64qam[24].imag() = -7.0 / normalization; + m_64qam[25].real() = 1.0 / normalization; + m_64qam[25].imag() = -5.0 / normalization; + m_64qam[26].real() = 3.0 / normalization; + m_64qam[26].imag() = -7.0 / normalization; + m_64qam[27].real() = 3.0 / normalization; + m_64qam[27].imag() = -5.0 / normalization; + m_64qam[28].real() = 1.0 / normalization; + m_64qam[28].imag() = -1.0 / normalization; + m_64qam[29].real() = 1.0 / normalization; + m_64qam[29].imag() = -3.0 / normalization; + m_64qam[30].real() = 3.0 / normalization; + m_64qam[30].imag() = -1.0 / normalization; + m_64qam[31].real() = 3.0 / normalization; + m_64qam[31].imag() = -3.0 / normalization; + m_64qam[32].real() = -7.0 / normalization; + m_64qam[32].imag() = 7.0 / normalization; + m_64qam[33].real() = -7.0 / normalization; + m_64qam[33].imag() = 5.0 / normalization; + m_64qam[34].real() = -5.0 / normalization; + m_64qam[34].imag() = 7.0 / normalization; + m_64qam[35].real() = -5.0 / normalization; + m_64qam[35].imag() = 5.0 / normalization; + m_64qam[36].real() = -7.0 / normalization; + m_64qam[36].imag() = 1.0 / normalization; + m_64qam[37].real() = -7.0 / normalization; + m_64qam[37].imag() = 3.0 / normalization; + m_64qam[38].real() = -5.0 / normalization; + m_64qam[38].imag() = 1.0 / normalization; + m_64qam[39].real() = -5.0 / normalization; + m_64qam[39].imag() = 3.0 / normalization; + m_64qam[40].real() = -1.0 / normalization; + m_64qam[40].imag() = 7.0 / normalization; + m_64qam[41].real() = -1.0 / normalization; + m_64qam[41].imag() = 5.0 / normalization; + m_64qam[42].real() = -3.0 / normalization; + m_64qam[42].imag() = 7.0 / normalization; + m_64qam[43].real() = -3.0 / normalization; + m_64qam[43].imag() = 5.0 / normalization; + m_64qam[44].real() = -1.0 / normalization; + m_64qam[44].imag() = 1.0 / normalization; + m_64qam[45].real() = -1.0 / normalization; + m_64qam[45].imag() = 3.0 / normalization; + m_64qam[46].real() = -3.0 / normalization; + m_64qam[46].imag() = 1.0 / normalization; + m_64qam[47].real() = -3.0 / normalization; + m_64qam[47].imag() = 3.0 / normalization; + m_64qam[48].real() = -7.0 / normalization; + m_64qam[48].imag() = -7.0 / normalization; + m_64qam[49].real() = -7.0 / normalization; + m_64qam[49].imag() = -5.0 / normalization; + m_64qam[50].real() = -5.0 / normalization; + m_64qam[50].imag() = -7.0 / normalization; + m_64qam[51].real() = -5.0 / normalization; + m_64qam[51].imag() = -5.0 / normalization; + m_64qam[52].real() = -7.0 / normalization; + m_64qam[52].imag() = -1.0 / normalization; + m_64qam[53].real() = -7.0 / normalization; + m_64qam[53].imag() = -3.0 / normalization; + m_64qam[54].real() = -5.0 / normalization; + m_64qam[54].imag() = -1.0 / normalization; + m_64qam[55].real() = -5.0 / normalization; + m_64qam[55].imag() = -3.0 / normalization; + m_64qam[56].real() = -1.0 / normalization; + m_64qam[56].imag() = -7.0 / normalization; + m_64qam[57].real() = -1.0 / normalization; + m_64qam[57].imag() = -5.0 / normalization; + m_64qam[58].real() = -3.0 / normalization; + m_64qam[58].imag() = -7.0 / normalization; + m_64qam[59].real() = -3.0 / normalization; + m_64qam[59].imag() = -5.0 / normalization; + m_64qam[60].real() = -1.0 / normalization; + m_64qam[60].imag() = -1.0 / normalization; + m_64qam[61].real() = -1.0 / normalization; + m_64qam[61].imag() = -3.0 / normalization; + m_64qam[62].real() = -3.0 / normalization; + m_64qam[62].imag() = -1.0 / normalization; + m_64qam[63].real() = -3.0 / normalization; + m_64qam[63].imag() = -3.0 / normalization; + if (rotation == ROTATION_ON) { + cyclic_delay = TRUE; + rotation_angle = (2.0 * M_PI * 8.6) / 360; + for (int i = 0; i < 64; i++) { + m_temp[0].real() = m_64qam[i].real(); + m_64qam[i].real() = (m_64qam[i].real() * cos(rotation_angle)) - (m_64qam[i].imag() * sin(rotation_angle)); + m_64qam[i].imag() = (m_temp[0].real() * sin(rotation_angle)) + (m_64qam[i].imag() * cos(rotation_angle)); + } + } + break; + case MOD_256QAM: + normalization = sqrt(170); + m_256qam[0].real() = 15 / normalization; + m_256qam[0].imag() = 15 / normalization; + m_256qam[1].real() = 15 / normalization; + m_256qam[1].imag() = 13 / normalization; + m_256qam[2].real() = 13 / normalization; + m_256qam[2].imag() = 15 / normalization; + m_256qam[3].real() = 13 / normalization; + m_256qam[3].imag() = 13 / normalization; + m_256qam[4].real() = 15 / normalization; + m_256qam[4].imag() = 9 / normalization; + m_256qam[5].real() = 15 / normalization; + m_256qam[5].imag() = 11 / normalization; + m_256qam[6].real() = 13 / normalization; + m_256qam[6].imag() = 9 / normalization; + m_256qam[7].real() = 13 / normalization; + m_256qam[7].imag() = 11 / normalization; + m_256qam[8].real() = 9 / normalization; + m_256qam[8].imag() = 15 / normalization; + m_256qam[9].real() = 9 / normalization; + m_256qam[9].imag() = 13 / normalization; + m_256qam[10].real() = 11 / normalization; + m_256qam[10].imag() = 15 / normalization; + m_256qam[11].real() = 11 / normalization; + m_256qam[11].imag() = 13 / normalization; + m_256qam[12].real() = 9 / normalization; + m_256qam[12].imag() = 9 / normalization; + m_256qam[13].real() = 9 / normalization; + m_256qam[13].imag() = 11 / normalization; + m_256qam[14].real() = 11 / normalization; + m_256qam[14].imag() = 9 / normalization; + m_256qam[15].real() = 11 / normalization; + m_256qam[15].imag() = 11 / normalization; + m_256qam[16].real() = 15 / normalization; + m_256qam[16].imag() = 1 / normalization; + m_256qam[17].real() = 15 / normalization; + m_256qam[17].imag() = 3 / normalization; + m_256qam[18].real() = 13 / normalization; + m_256qam[18].imag() = 1 / normalization; + m_256qam[19].real() = 13 / normalization; + m_256qam[19].imag() = 3 / normalization; + m_256qam[20].real() = 15 / normalization; + m_256qam[20].imag() = 7 / normalization; + m_256qam[21].real() = 15 / normalization; + m_256qam[21].imag() = 5 / normalization; + m_256qam[22].real() = 13 / normalization; + m_256qam[22].imag() = 7 / normalization; + m_256qam[23].real() = 13 / normalization; + m_256qam[23].imag() = 5 / normalization; + m_256qam[24].real() = 9 / normalization; + m_256qam[24].imag() = 1 / normalization; + m_256qam[25].real() = 9 / normalization; + m_256qam[25].imag() = 3 / normalization; + m_256qam[26].real() = 11 / normalization; + m_256qam[26].imag() = 1 / normalization; + m_256qam[27].real() = 11 / normalization; + m_256qam[27].imag() = 3 / normalization; + m_256qam[28].real() = 9 / normalization; + m_256qam[28].imag() = 7 / normalization; + m_256qam[29].real() = 9 / normalization; + m_256qam[29].imag() = 5 / normalization; + m_256qam[30].real() = 11 / normalization; + m_256qam[30].imag() = 7 / normalization; + m_256qam[31].real() = 11 / normalization; + m_256qam[31].imag() = 5 / normalization; + m_256qam[32].real() = 1 / normalization; + m_256qam[32].imag() = 15 / normalization; + m_256qam[33].real() = 1 / normalization; + m_256qam[33].imag() = 13 / normalization; + m_256qam[34].real() = 3 / normalization; + m_256qam[34].imag() = 15 / normalization; + m_256qam[35].real() = 3 / normalization; + m_256qam[35].imag() = 13 / normalization; + m_256qam[36].real() = 1 / normalization; + m_256qam[36].imag() = 9 / normalization; + m_256qam[37].real() = 1 / normalization; + m_256qam[37].imag() = 11 / normalization; + m_256qam[38].real() = 3 / normalization; + m_256qam[38].imag() = 9 / normalization; + m_256qam[39].real() = 3 / normalization; + m_256qam[39].imag() = 11 / normalization; + m_256qam[40].real() = 7 / normalization; + m_256qam[40].imag() = 15 / normalization; + m_256qam[41].real() = 7 / normalization; + m_256qam[41].imag() = 13 / normalization; + m_256qam[42].real() = 5 / normalization; + m_256qam[42].imag() = 15 / normalization; + m_256qam[43].real() = 5 / normalization; + m_256qam[43].imag() = 13 / normalization; + m_256qam[44].real() = 7 / normalization; + m_256qam[44].imag() = 9 / normalization; + m_256qam[45].real() = 7 / normalization; + m_256qam[45].imag() = 11 / normalization; + m_256qam[46].real() = 5 / normalization; + m_256qam[46].imag() = 9 / normalization; + m_256qam[47].real() = 5 / normalization; + m_256qam[47].imag() = 11 / normalization; + m_256qam[48].real() = 1 / normalization; + m_256qam[48].imag() = 1 / normalization; + m_256qam[49].real() = 1 / normalization; + m_256qam[49].imag() = 3 / normalization; + m_256qam[50].real() = 3 / normalization; + m_256qam[50].imag() = 1 / normalization; + m_256qam[51].real() = 3 / normalization; + m_256qam[51].imag() = 3 / normalization; + m_256qam[52].real() = 1 / normalization; + m_256qam[52].imag() = 7 / normalization; + m_256qam[53].real() = 1 / normalization; + m_256qam[53].imag() = 5 / normalization; + m_256qam[54].real() = 3 / normalization; + m_256qam[54].imag() = 7 / normalization; + m_256qam[55].real() = 3 / normalization; + m_256qam[55].imag() = 5 / normalization; + m_256qam[56].real() = 7 / normalization; + m_256qam[56].imag() = 1 / normalization; + m_256qam[57].real() = 7 / normalization; + m_256qam[57].imag() = 3 / normalization; + m_256qam[58].real() = 5 / normalization; + m_256qam[58].imag() = 1 / normalization; + m_256qam[59].real() = 5 / normalization; + m_256qam[59].imag() = 3 / normalization; + m_256qam[60].real() = 7 / normalization; + m_256qam[60].imag() = 7 / normalization; + m_256qam[61].real() = 7 / normalization; + m_256qam[61].imag() = 5 / normalization; + m_256qam[62].real() = 5 / normalization; + m_256qam[62].imag() = 7 / normalization; + m_256qam[63].real() = 5 / normalization; + m_256qam[63].imag() = 5 / normalization; + m_256qam[64].real() = 15 / normalization; + m_256qam[64].imag() = -15 / normalization; + m_256qam[65].real() = 15 / normalization; + m_256qam[65].imag() = -13 / normalization; + m_256qam[66].real() = 13 / normalization; + m_256qam[66].imag() = -15 / normalization; + m_256qam[67].real() = 13 / normalization; + m_256qam[67].imag() = -13 / normalization; + m_256qam[68].real() = 15 / normalization; + m_256qam[68].imag() = -9 / normalization; + m_256qam[69].real() = 15 / normalization; + m_256qam[69].imag() = -11 / normalization; + m_256qam[70].real() = 13 / normalization; + m_256qam[70].imag() = -9 / normalization; + m_256qam[71].real() = 13 / normalization; + m_256qam[71].imag() = -11 / normalization; + m_256qam[72].real() = 9 / normalization; + m_256qam[72].imag() = -15 / normalization; + m_256qam[73].real() = 9 / normalization; + m_256qam[73].imag() = -13 / normalization; + m_256qam[74].real() = 11 / normalization; + m_256qam[74].imag() = -15 / normalization; + m_256qam[75].real() = 11 / normalization; + m_256qam[75].imag() = -13 / normalization; + m_256qam[76].real() = 9 / normalization; + m_256qam[76].imag() = -9 / normalization; + m_256qam[77].real() = 9 / normalization; + m_256qam[77].imag() = -11 / normalization; + m_256qam[78].real() = 11 / normalization; + m_256qam[78].imag() = -9 / normalization; + m_256qam[79].real() = 11 / normalization; + m_256qam[79].imag() = -11 / normalization; + m_256qam[80].real() = 15 / normalization; + m_256qam[80].imag() = -1 / normalization; + m_256qam[81].real() = 15 / normalization; + m_256qam[81].imag() = -3 / normalization; + m_256qam[82].real() = 13 / normalization; + m_256qam[82].imag() = -1 / normalization; + m_256qam[83].real() = 13 / normalization; + m_256qam[83].imag() = -3 / normalization; + m_256qam[84].real() = 15 / normalization; + m_256qam[84].imag() = -7 / normalization; + m_256qam[85].real() = 15 / normalization; + m_256qam[85].imag() = -5 / normalization; + m_256qam[86].real() = 13 / normalization; + m_256qam[86].imag() = -7 / normalization; + m_256qam[87].real() = 13 / normalization; + m_256qam[87].imag() = -5 / normalization; + m_256qam[88].real() = 9 / normalization; + m_256qam[88].imag() = -1 / normalization; + m_256qam[89].real() = 9 / normalization; + m_256qam[89].imag() = -3 / normalization; + m_256qam[90].real() = 11 / normalization; + m_256qam[90].imag() = -1 / normalization; + m_256qam[91].real() = 11 / normalization; + m_256qam[91].imag() = -3 / normalization; + m_256qam[92].real() = 9 / normalization; + m_256qam[92].imag() = -7 / normalization; + m_256qam[93].real() = 9 / normalization; + m_256qam[93].imag() = -5 / normalization; + m_256qam[94].real() = 11 / normalization; + m_256qam[94].imag() = -7 / normalization; + m_256qam[95].real() = 11 / normalization; + m_256qam[95].imag() = -5 / normalization; + m_256qam[96].real() = 1 / normalization; + m_256qam[96].imag() = -15 / normalization; + m_256qam[97].real() = 1 / normalization; + m_256qam[97].imag() = -13 / normalization; + m_256qam[98].real() = 3 / normalization; + m_256qam[98].imag() = -15 / normalization; + m_256qam[99].real() = 3 / normalization; + m_256qam[99].imag() = -13 / normalization; + m_256qam[100].real() = 1 / normalization; + m_256qam[100].imag() = -9 / normalization; + m_256qam[101].real() = 1 / normalization; + m_256qam[101].imag() = -11 / normalization; + m_256qam[102].real() = 3 / normalization; + m_256qam[102].imag() = -9 / normalization; + m_256qam[103].real() = 3 / normalization; + m_256qam[103].imag() = -11 / normalization; + m_256qam[104].real() = 7 / normalization; + m_256qam[104].imag() = -15 / normalization; + m_256qam[105].real() = 7 / normalization; + m_256qam[105].imag() = -13 / normalization; + m_256qam[106].real() = 5 / normalization; + m_256qam[106].imag() = -15 / normalization; + m_256qam[107].real() = 5 / normalization; + m_256qam[107].imag() = -13 / normalization; + m_256qam[108].real() = 7 / normalization; + m_256qam[108].imag() = -9 / normalization; + m_256qam[109].real() = 7 / normalization; + m_256qam[109].imag() = -11 / normalization; + m_256qam[110].real() = 5 / normalization; + m_256qam[110].imag() = -9 / normalization; + m_256qam[111].real() = 5 / normalization; + m_256qam[111].imag() = -11 / normalization; + m_256qam[112].real() = 1 / normalization; + m_256qam[112].imag() = -1 / normalization; + m_256qam[113].real() = 1 / normalization; + m_256qam[113].imag() = -3 / normalization; + m_256qam[114].real() = 3 / normalization; + m_256qam[114].imag() = -1 / normalization; + m_256qam[115].real() = 3 / normalization; + m_256qam[115].imag() = -3 / normalization; + m_256qam[116].real() = 1 / normalization; + m_256qam[116].imag() = -7 / normalization; + m_256qam[117].real() = 1 / normalization; + m_256qam[117].imag() = -5 / normalization; + m_256qam[118].real() = 3 / normalization; + m_256qam[118].imag() = -7 / normalization; + m_256qam[119].real() = 3 / normalization; + m_256qam[119].imag() = -5 / normalization; + m_256qam[120].real() = 7 / normalization; + m_256qam[120].imag() = -1 / normalization; + m_256qam[121].real() = 7 / normalization; + m_256qam[121].imag() = -3 / normalization; + m_256qam[122].real() = 5 / normalization; + m_256qam[122].imag() = -1 / normalization; + m_256qam[123].real() = 5 / normalization; + m_256qam[123].imag() = -3 / normalization; + m_256qam[124].real() = 7 / normalization; + m_256qam[124].imag() = -7 / normalization; + m_256qam[125].real() = 7 / normalization; + m_256qam[125].imag() = -5 / normalization; + m_256qam[126].real() = 5 / normalization; + m_256qam[126].imag() = -7 / normalization; + m_256qam[127].real() = 5 / normalization; + m_256qam[127].imag() = -5 / normalization; + m_256qam[128].real() = -15 / normalization; + m_256qam[128].imag() = 15 / normalization; + m_256qam[129].real() = -15 / normalization; + m_256qam[129].imag() = 13 / normalization; + m_256qam[130].real() = -13 / normalization; + m_256qam[130].imag() = 15 / normalization; + m_256qam[131].real() = -13 / normalization; + m_256qam[131].imag() = 13 / normalization; + m_256qam[132].real() = -15 / normalization; + m_256qam[132].imag() = 9 / normalization; + m_256qam[133].real() = -15 / normalization; + m_256qam[133].imag() = 11 / normalization; + m_256qam[134].real() = -13 / normalization; + m_256qam[134].imag() = 9 / normalization; + m_256qam[135].real() = -13 / normalization; + m_256qam[135].imag() = 11 / normalization; + m_256qam[136].real() = -9 / normalization; + m_256qam[136].imag() = 15 / normalization; + m_256qam[137].real() = -9 / normalization; + m_256qam[137].imag() = 13 / normalization; + m_256qam[138].real() = -11 / normalization; + m_256qam[138].imag() = 15 / normalization; + m_256qam[139].real() = -11 / normalization; + m_256qam[139].imag() = 13 / normalization; + m_256qam[140].real() = -9 / normalization; + m_256qam[140].imag() = 9 / normalization; + m_256qam[141].real() = -9 / normalization; + m_256qam[141].imag() = 11 / normalization; + m_256qam[142].real() = -11 / normalization; + m_256qam[142].imag() = 9 / normalization; + m_256qam[143].real() = -11 / normalization; + m_256qam[143].imag() = 11 / normalization; + m_256qam[144].real() = -15 / normalization; + m_256qam[144].imag() = 1 / normalization; + m_256qam[145].real() = -15 / normalization; + m_256qam[145].imag() = 3 / normalization; + m_256qam[146].real() = -13 / normalization; + m_256qam[146].imag() = 1 / normalization; + m_256qam[147].real() = -13 / normalization; + m_256qam[147].imag() = 3 / normalization; + m_256qam[148].real() = -15 / normalization; + m_256qam[148].imag() = 7 / normalization; + m_256qam[149].real() = -15 / normalization; + m_256qam[149].imag() = 5 / normalization; + m_256qam[150].real() = -13 / normalization; + m_256qam[150].imag() = 7 / normalization; + m_256qam[151].real() = -13 / normalization; + m_256qam[151].imag() = 5 / normalization; + m_256qam[152].real() = -9 / normalization; + m_256qam[152].imag() = 1 / normalization; + m_256qam[153].real() = -9 / normalization; + m_256qam[153].imag() = 3 / normalization; + m_256qam[154].real() = -11 / normalization; + m_256qam[154].imag() = 1 / normalization; + m_256qam[155].real() = -11 / normalization; + m_256qam[155].imag() = 3 / normalization; + m_256qam[156].real() = -9 / normalization; + m_256qam[156].imag() = 7 / normalization; + m_256qam[157].real() = -9 / normalization; + m_256qam[157].imag() = 5 / normalization; + m_256qam[158].real() = -11 / normalization; + m_256qam[158].imag() = 7 / normalization; + m_256qam[159].real() = -11 / normalization; + m_256qam[159].imag() = 5 / normalization; + m_256qam[160].real() = -1 / normalization; + m_256qam[160].imag() = 15 / normalization; + m_256qam[161].real() = -1 / normalization; + m_256qam[161].imag() = 13 / normalization; + m_256qam[162].real() = -3 / normalization; + m_256qam[162].imag() = 15 / normalization; + m_256qam[163].real() = -3 / normalization; + m_256qam[163].imag() = 13 / normalization; + m_256qam[164].real() = -1 / normalization; + m_256qam[164].imag() = 9 / normalization; + m_256qam[165].real() = -1 / normalization; + m_256qam[165].imag() = 11 / normalization; + m_256qam[166].real() = -3 / normalization; + m_256qam[166].imag() = 9 / normalization; + m_256qam[167].real() = -3 / normalization; + m_256qam[167].imag() = 11 / normalization; + m_256qam[168].real() = -7 / normalization; + m_256qam[168].imag() = 15 / normalization; + m_256qam[169].real() = -7 / normalization; + m_256qam[169].imag() = 13 / normalization; + m_256qam[170].real() = -5 / normalization; + m_256qam[170].imag() = 15 / normalization; + m_256qam[171].real() = -5 / normalization; + m_256qam[171].imag() = 13 / normalization; + m_256qam[172].real() = -7 / normalization; + m_256qam[172].imag() = 9 / normalization; + m_256qam[173].real() = -7 / normalization; + m_256qam[173].imag() = 11 / normalization; + m_256qam[174].real() = -5 / normalization; + m_256qam[174].imag() = 9 / normalization; + m_256qam[175].real() = -5 / normalization; + m_256qam[175].imag() = 11 / normalization; + m_256qam[176].real() = -1 / normalization; + m_256qam[176].imag() = 1 / normalization; + m_256qam[177].real() = -1 / normalization; + m_256qam[177].imag() = 3 / normalization; + m_256qam[178].real() = -3 / normalization; + m_256qam[178].imag() = 1 / normalization; + m_256qam[179].real() = -3 / normalization; + m_256qam[179].imag() = 3 / normalization; + m_256qam[180].real() = -1 / normalization; + m_256qam[180].imag() = 7 / normalization; + m_256qam[181].real() = -1 / normalization; + m_256qam[181].imag() = 5 / normalization; + m_256qam[182].real() = -3 / normalization; + m_256qam[182].imag() = 7 / normalization; + m_256qam[183].real() = -3 / normalization; + m_256qam[183].imag() = 5 / normalization; + m_256qam[184].real() = -7 / normalization; + m_256qam[184].imag() = 1 / normalization; + m_256qam[185].real() = -7 / normalization; + m_256qam[185].imag() = 3 / normalization; + m_256qam[186].real() = -5 / normalization; + m_256qam[186].imag() = 1 / normalization; + m_256qam[187].real() = -5 / normalization; + m_256qam[187].imag() = 3 / normalization; + m_256qam[188].real() = -7 / normalization; + m_256qam[188].imag() = 7 / normalization; + m_256qam[189].real() = -7 / normalization; + m_256qam[189].imag() = 5 / normalization; + m_256qam[190].real() = -5 / normalization; + m_256qam[190].imag() = 7 / normalization; + m_256qam[191].real() = -5 / normalization; + m_256qam[191].imag() = 5 / normalization; + m_256qam[192].real() = -15 / normalization; + m_256qam[192].imag() = -15 / normalization; + m_256qam[193].real() = -15 / normalization; + m_256qam[193].imag() = -13 / normalization; + m_256qam[194].real() = -13 / normalization; + m_256qam[194].imag() = -15 / normalization; + m_256qam[195].real() = -13 / normalization; + m_256qam[195].imag() = -13 / normalization; + m_256qam[196].real() = -15 / normalization; + m_256qam[196].imag() = -9 / normalization; + m_256qam[197].real() = -15 / normalization; + m_256qam[197].imag() = -11 / normalization; + m_256qam[198].real() = -13 / normalization; + m_256qam[198].imag() = -9 / normalization; + m_256qam[199].real() = -13 / normalization; + m_256qam[199].imag() = -11 / normalization; + m_256qam[200].real() = -9 / normalization; + m_256qam[200].imag() = -15 / normalization; + m_256qam[201].real() = -9 / normalization; + m_256qam[201].imag() = -13 / normalization; + m_256qam[202].real() = -11 / normalization; + m_256qam[202].imag() = -15 / normalization; + m_256qam[203].real() = -11 / normalization; + m_256qam[203].imag() = -13 / normalization; + m_256qam[204].real() = -9 / normalization; + m_256qam[204].imag() = -9 / normalization; + m_256qam[205].real() = -9 / normalization; + m_256qam[205].imag() = -11 / normalization; + m_256qam[206].real() = -11 / normalization; + m_256qam[206].imag() = -9 / normalization; + m_256qam[207].real() = -11 / normalization; + m_256qam[207].imag() = -11 / normalization; + m_256qam[208].real() = -15 / normalization; + m_256qam[208].imag() = -1 / normalization; + m_256qam[209].real() = -15 / normalization; + m_256qam[209].imag() = -3 / normalization; + m_256qam[210].real() = -13 / normalization; + m_256qam[210].imag() = -1 / normalization; + m_256qam[211].real() = -13 / normalization; + m_256qam[211].imag() = -3 / normalization; + m_256qam[212].real() = -15 / normalization; + m_256qam[212].imag() = -7 / normalization; + m_256qam[213].real() = -15 / normalization; + m_256qam[213].imag() = -5 / normalization; + m_256qam[214].real() = -13 / normalization; + m_256qam[214].imag() = -7 / normalization; + m_256qam[215].real() = -13 / normalization; + m_256qam[215].imag() = -5 / normalization; + m_256qam[216].real() = -9 / normalization; + m_256qam[216].imag() = -1 / normalization; + m_256qam[217].real() = -9 / normalization; + m_256qam[217].imag() = -3 / normalization; + m_256qam[218].real() = -11 / normalization; + m_256qam[218].imag() = -1 / normalization; + m_256qam[219].real() = -11 / normalization; + m_256qam[219].imag() = -3 / normalization; + m_256qam[220].real() = -9 / normalization; + m_256qam[220].imag() = -7 / normalization; + m_256qam[221].real() = -9 / normalization; + m_256qam[221].imag() = -5 / normalization; + m_256qam[222].real() = -11 / normalization; + m_256qam[222].imag() = -7 / normalization; + m_256qam[223].real() = -11 / normalization; + m_256qam[223].imag() = -5 / normalization; + m_256qam[224].real() = -1 / normalization; + m_256qam[224].imag() = -15 / normalization; + m_256qam[225].real() = -1 / normalization; + m_256qam[225].imag() = -13 / normalization; + m_256qam[226].real() = -3 / normalization; + m_256qam[226].imag() = -15 / normalization; + m_256qam[227].real() = -3 / normalization; + m_256qam[227].imag() = -13 / normalization; + m_256qam[228].real() = -1 / normalization; + m_256qam[228].imag() = -9 / normalization; + m_256qam[229].real() = -1 / normalization; + m_256qam[229].imag() = -11 / normalization; + m_256qam[230].real() = -3 / normalization; + m_256qam[230].imag() = -9 / normalization; + m_256qam[231].real() = -3 / normalization; + m_256qam[231].imag() = -11 / normalization; + m_256qam[232].real() = -7 / normalization; + m_256qam[232].imag() = -15 / normalization; + m_256qam[233].real() = -7 / normalization; + m_256qam[233].imag() = -13 / normalization; + m_256qam[234].real() = -5 / normalization; + m_256qam[234].imag() = -15 / normalization; + m_256qam[235].real() = -5 / normalization; + m_256qam[235].imag() = -13 / normalization; + m_256qam[236].real() = -7 / normalization; + m_256qam[236].imag() = -9 / normalization; + m_256qam[237].real() = -7 / normalization; + m_256qam[237].imag() = -11 / normalization; + m_256qam[238].real() = -5 / normalization; + m_256qam[238].imag() = -9 / normalization; + m_256qam[239].real() = -5 / normalization; + m_256qam[239].imag() = -11 / normalization; + m_256qam[240].real() = -1 / normalization; + m_256qam[240].imag() = -1 / normalization; + m_256qam[241].real() = -1 / normalization; + m_256qam[241].imag() = -3 / normalization; + m_256qam[242].real() = -3 / normalization; + m_256qam[242].imag() = -1 / normalization; + m_256qam[243].real() = -3 / normalization; + m_256qam[243].imag() = -3 / normalization; + m_256qam[244].real() = -1 / normalization; + m_256qam[244].imag() = -7 / normalization; + m_256qam[245].real() = -1 / normalization; + m_256qam[245].imag() = -5 / normalization; + m_256qam[246].real() = -3 / normalization; + m_256qam[246].imag() = -7 / normalization; + m_256qam[247].real() = -3 / normalization; + m_256qam[247].imag() = -5 / normalization; + m_256qam[248].real() = -7 / normalization; + m_256qam[248].imag() = -1 / normalization; + m_256qam[249].real() = -7 / normalization; + m_256qam[249].imag() = -3 / normalization; + m_256qam[250].real() = -5 / normalization; + m_256qam[250].imag() = -1 / normalization; + m_256qam[251].real() = -5 / normalization; + m_256qam[251].imag() = -3 / normalization; + m_256qam[252].real() = -7 / normalization; + m_256qam[252].imag() = -7 / normalization; + m_256qam[253].real() = -7 / normalization; + m_256qam[253].imag() = -5 / normalization; + m_256qam[254].real() = -5 / normalization; + m_256qam[254].imag() = -7 / normalization; + m_256qam[255].real() = -5 / normalization; + m_256qam[255].imag() = -5 / normalization; + if (rotation == ROTATION_ON) { + cyclic_delay = TRUE; + rotation_angle = (2.0 * M_PI * 3.576334375) / 360; + for (int i = 0; i < 256; i++) { + m_temp[0].real() = m_256qam[i].real(); + m_256qam[i].real() = (m_256qam[i].real() * cos(rotation_angle)) - (m_256qam[i].imag() * sin(rotation_angle)); + m_256qam[i].imag() = (m_temp[0].real() * sin(rotation_angle)) + (m_256qam[i].imag() * cos(rotation_angle)); + } + } + break; + default: + normalization = sqrt(2); + m_qpsk[0].real() = 1.0 / normalization; + m_qpsk[0].imag() = 1.0 / normalization; + m_qpsk[1].real() = 1.0 / normalization; + m_qpsk[1].imag() = -1.0 / normalization; + m_qpsk[2].real() = -1.0 / normalization; + m_qpsk[2].imag() = 1.0 / normalization; + m_qpsk[3].real() = -1.0 / normalization; + m_qpsk[3].imag() = -1.0 / normalization; + if (rotation == ROTATION_ON) { + cyclic_delay = TRUE; + rotation_angle = (2.0 * M_PI * 29.0) / 360; + for (int i = 0; i < 4; i++) { + m_temp[0].real() = m_qpsk[i].real(); + m_qpsk[i].real() = (m_qpsk[i].real() * cos(rotation_angle)) - (m_qpsk[i].imag() * sin(rotation_angle)); + m_qpsk[i].imag() = (m_temp[0].real() * sin(rotation_angle)) + (m_qpsk[i].imag() * cos(rotation_angle)); + } + } + break; + } + signal_constellation = constellation; + set_output_multiple(cell_size); + } + + /* + * Our virtual destructor. + */ + dvbt2_modulator_bc_impl::~dvbt2_modulator_bc_impl() + { + } + + void + dvbt2_modulator_bc_impl::forecast (int noutput_items, gr_vector_int &ninput_items_required) + { + ninput_items_required[0] = noutput_items; + } + + int + dvbt2_modulator_bc_impl::general_work (int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) + { + const unsigned char *in = (const unsigned char *) input_items[0]; + gr_complex *out = (gr_complex *) output_items[0]; + const unsigned char *in_delay; + gr_complex f_temp[1], g_temp[1]; + int index, index_delay; + + switch (signal_constellation) { + case MOD_QPSK: + for (int i = 0; i < noutput_items; i += cell_size) { + if (cyclic_delay == FALSE) { + for (int j = 0; j < cell_size; j++) { + index = *in++; + *out++ = m_qpsk[index & 0x3]; + } + } + else { + in_delay = in; + for (int j = 0; j < cell_size; j++) { + index = *in++; + index_delay = in_delay[(j + cell_size - 1) % cell_size]; + f_temp[0] = m_qpsk[index & 0x3]; + g_temp[0] = m_qpsk[index_delay & 0x3]; + f_temp[0].imag() = g_temp[0].imag(); + *out++ = f_temp[0]; + } + } + } + break; + case MOD_16QAM: + for (int i = 0; i < noutput_items; i += cell_size) { + if (cyclic_delay == FALSE) { + for (int j = 0; j < cell_size; j++) { + index = *in++; + *out++ = m_16qam[index & 0xf]; + } + } + else { + in_delay = in; + for (int j = 0; j < cell_size; j++) { + index = *in++; + index_delay = in_delay[(j + cell_size - 1) % cell_size]; + f_temp[0] = m_16qam[index & 0xf]; + g_temp[0] = m_16qam[index_delay & 0xf]; + f_temp[0].imag() = g_temp[0].imag(); + *out++ = f_temp[0]; + } + } + } + break; + case MOD_64QAM: + for (int i = 0; i < noutput_items; i += cell_size) { + if (cyclic_delay == FALSE) { + for (int j = 0; j < noutput_items; j++) { + index = *in++; + *out++ = m_64qam[index & 0x3f]; + } + } + else { + in_delay = in; + for (int j = 0; j < cell_size; j++) { + index = *in++; + index_delay = in_delay[(j + cell_size - 1) % cell_size]; + f_temp[0] = m_64qam[index & 0x3f]; + g_temp[0] = m_64qam[index_delay & 0x3f]; + f_temp[0].imag() = g_temp[0].imag(); + *out++ = f_temp[0]; + } + } + } + break; + case MOD_256QAM: + for (int i = 0; i < noutput_items; i += cell_size) { + if (cyclic_delay == FALSE) { + for (int j = 0; j < cell_size; j++) { + index = *in++; + *out++ = m_256qam[index & 0xff]; + } + } + else { + in_delay = in; + for (int j = 0; j < cell_size; j++) { + index = *in++; + index_delay = in_delay[(j + cell_size - 1) % cell_size]; + f_temp[0] = m_256qam[index & 0xff]; + g_temp[0] = m_256qam[index_delay & 0xff]; + f_temp[0].imag() = g_temp[0].imag(); + *out++ = f_temp[0]; + } + } + } + break; + } + + // Tell runtime system how many input items we consumed on + // each input stream. + consume_each (noutput_items); + + // Tell runtime system how many output items we produced. + return noutput_items; + } + + } /* namespace dtv */ +} /* namespace gr */ + |