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Diffstat (limited to 'gr-digital/python/bpsk.py')
| -rw-r--r-- | gr-digital/python/bpsk.py | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/gr-digital/python/bpsk.py b/gr-digital/python/bpsk.py deleted file mode 100644 index 0d8f05c4c..000000000 --- a/gr-digital/python/bpsk.py +++ /dev/null @@ -1,171 +0,0 @@ -# -# Copyright 2005,2006,2011 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. -# - -""" -BPSK modulation and demodulation. -""" - -from math import pi, log -from cmath import exp - -from gnuradio import gr -from gnuradio.digital.generic_mod_demod import generic_mod, generic_demod -import digital_swig -import modulation_utils - -# Default number of points in constellation. -_def_constellation_points = 2 -# Whether differential coding is used. -_def_differential = False - -# ///////////////////////////////////////////////////////////////////////////// -# BPSK constellation -# ///////////////////////////////////////////////////////////////////////////// - -def bpsk_constellation(m=_def_constellation_points): - if m != _def_constellation_points: - raise ValueError("BPSK can only have 2 constellation points.") - return digital_swig.constellation_bpsk() - -# ///////////////////////////////////////////////////////////////////////////// -# BPSK modulator -# ///////////////////////////////////////////////////////////////////////////// - -class bpsk_mod(generic_mod): - - def __init__(self, constellation_points=_def_constellation_points, - differential=False, *args, **kwargs): - - """ - Hierarchical block for RRC-filtered BPSK modulation. - - The input is a byte stream (unsigned char) and the - output is the complex modulated signal at baseband. - - See generic_mod block for list of parameters. - """ - - constellation_points = _def_constellation_points - constellation = digital_swig.constellation_bpsk() - if constellation_points != 2: - raise ValueError('Number of constellation points must be 2 for BPSK.') - super(bpsk_mod, self).__init__(constellation=constellation, - differential=differential, *args, **kwargs) - -# ///////////////////////////////////////////////////////////////////////////// -# BPSK demodulator -# -# ///////////////////////////////////////////////////////////////////////////// - -class bpsk_demod(generic_demod): - - def __init__(self, constellation_points=_def_constellation_points, - differential=False, *args, **kwargs): - - """ - Hierarchical block for RRC-filtered BPSK modulation. - - The input is a byte stream (unsigned char) and the - output is the complex modulated signal at baseband. - - See generic_demod block for list of parameters. - """ - - constellation_points = _def_constellation_points - constellation = digital_swig.constellation_bpsk() - if constellation_points != 2: - raise ValueError('Number of constellation points must be 2 for BPSK.') - super(bpsk_demod, self).__init__(constellation=constellation, - differential=differential, *args, **kwargs) - - - -# ///////////////////////////////////////////////////////////////////////////// -# DBPSK constellation -# ///////////////////////////////////////////////////////////////////////////// - -def dbpsk_constellation(m=_def_constellation_points): - if m != _def_constellation_points: - raise ValueError("DBPSK can only have 2 constellation points.") - return digital_swig.constellation_dbpsk() - -# ///////////////////////////////////////////////////////////////////////////// -# DBPSK modulator -# ///////////////////////////////////////////////////////////////////////////// - -class dbpsk_mod(generic_mod): - - def __init__(self, constellation_points=_def_constellation_points, - differential=True, *args, **kwargs): - - """ - Hierarchical block for RRC-filtered DBPSK modulation. - - The input is a byte stream (unsigned char) and the - output is the complex modulated signal at baseband. - - See generic_mod block for list of parameters. - """ - - constellation_points = _def_constellation_points - constellation = digital_swig.constellation_bpsk() - if constellation_points != 2: - raise ValueError('Number of constellation points must be 2 for DBPSK.') - super(dbpsk_mod, self).__init__(constellation=constellation, - differential=True, - *args, **kwargs) - -# ///////////////////////////////////////////////////////////////////////////// -# DBPSK demodulator -# -# ///////////////////////////////////////////////////////////////////////////// - -class dbpsk_demod(generic_demod): - - def __init__(self, constellation_points=_def_constellation_points, - differential=True, *args, **kwargs): - - """ - Hierarchical block for RRC-filtered DBPSK modulation. - - The input is a byte stream (unsigned char) and the - output is the complex modulated signal at baseband. - - See generic_demod block for list of parameters. - """ - - constellation_points = _def_constellation_points - constellation = digital_swig.constellation_bpsk() - if constellation_points != 2: - raise ValueError('Number of constellation points must be 2 for DBPSK.') - super(dbpsk_demod, self).__init__(constellation=constellation, - differential=True, - *args, **kwargs) - -# -# Add these to the mod/demod registry -# -modulation_utils.add_type_1_mod('bpsk', bpsk_mod) -modulation_utils.add_type_1_demod('bpsk', bpsk_demod) -modulation_utils.add_type_1_constellation('bpsk', bpsk_constellation) -modulation_utils.add_type_1_mod('dbpsk', dbpsk_mod) -modulation_utils.add_type_1_demod('dbpsk', dbpsk_demod) -modulation_utils.add_type_1_constellation('dbpsk', dbpsk_constellation) |