diff options
Diffstat (limited to 'gnuradio-core/src/python/gnuradio/blks2impl/qpsk.py')
| -rw-r--r-- | gnuradio-core/src/python/gnuradio/blks2impl/qpsk.py | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/qpsk.py b/gnuradio-core/src/python/gnuradio/blks2impl/qpsk.py deleted file mode 100644 index 4af8d00180..0000000000 --- a/gnuradio-core/src/python/gnuradio/blks2impl/qpsk.py +++ /dev/null @@ -1,79 +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. -# - -""" -QPSK modulation. - -Demodulation is not included since the generic_mod_demod -doesn't work for non-differential encodings. -""" - -from gnuradio import gr, modulation_utils2 -from gnuradio.blks2impl.generic_mod_demod import generic_mod - - -# Default number of points in constellation. -_def_constellation_points = 4 -# Whether differential coding is used. -_def_differential = False -_def_gray_coded = True - -# ///////////////////////////////////////////////////////////////////////////// -# QPSK constellation -# ///////////////////////////////////////////////////////////////////////////// - -def qpsk_constellation(m=_def_constellation_points): - if m != _def_constellation_points: - raise ValueError("QPSK can only have 4 constellation points.") - return gr.constellation_qpsk() - -# ///////////////////////////////////////////////////////////////////////////// -# QPSK modulator -# ///////////////////////////////////////////////////////////////////////////// - -class qpsk_mod(generic_mod): - - def __init__(self, constellation_points=_def_constellation_points, - differential=_def_differential, - gray_coded=_def_gray_coded, - *args, **kwargs): - - """ - Hierarchical block for RRC-filtered QPSK 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 = gr.constellation_qpsk() - if constellation_points != 4: - raise ValueError("QPSK can only have 4 constellation points.") - if differential or not gray_coded: - raise ValueError("This QPSK mod/demod works only for gray-coded, non-differential.") - super(qpsk_mod, self).__init__(constellation, differential, gray_coded, *args, **kwargs) - -# -# Add these to the mod/demod registry -# -modulation_utils2.add_type_1_mod('qpsk', qpsk_mod) -modulation_utils2.add_type_1_constellation('qpsk', qpsk_constellation) |