diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2012-12-21 15:11:39 -0500 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2012-12-21 21:19:13 -0500 |
| commit | 55d3e4a47958be287648a2021f7e92d81086b2d9 (patch) | |
| tree | ae0195c457f2cf2734376679cc88c2d728040680 /gnuradio-core/src/python/gnuradio/blks2impl | |
| parent | fa781237f341a74a243a9fb930daee7e62c3a682 (diff) | |
blocks: removes blocks moved to gr-blocks from gnuradio-core.
Also fixes up some other missing moves.
Diffstat (limited to 'gnuradio-core/src/python/gnuradio/blks2impl')
6 files changed, 0 insertions, 531 deletions
diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/CMakeLists.txt b/gnuradio-core/src/python/gnuradio/blks2impl/CMakeLists.txt deleted file mode 100644 index dae287ca3a..0000000000 --- a/gnuradio-core/src/python/gnuradio/blks2impl/CMakeLists.txt +++ /dev/null @@ -1,29 +0,0 @@ -# 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. - -include(GrPython) - -GR_PYTHON_INSTALL(FILES - __init__.py - filterbank.py - rational_resampler.py - stream_to_vector_decimator.py - DESTINATION ${GR_PYTHON_DIR}/gnuradio/blks2impl - COMPONENT "core_python" -) diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/__init__.py b/gnuradio-core/src/python/gnuradio/blks2impl/__init__.py deleted file mode 100644 index a4917cf64c..0000000000 --- a/gnuradio-core/src/python/gnuradio/blks2impl/__init__.py +++ /dev/null @@ -1 +0,0 @@ -# make this a package diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/digital_voice.py.real b/gnuradio-core/src/python/gnuradio/blks2impl/digital_voice.py.real deleted file mode 100644 index 6ec66825c1..0000000000 --- a/gnuradio-core/src/python/gnuradio/blks2impl/digital_voice.py.real +++ /dev/null @@ -1,102 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2005 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. -# - -""" -Digital voice Tx and Rx using GSM 13kbit vocoder and GMSK. - -Runs channel at 32kbit/sec. Currently uses fake channel coding, -but there's room for a rate 1/2 coder. -""" - -from gnuradio import gr, gru -from gnuradio.blksimpl.gmsk import gmsk_mod, gmsk_demod - -from gnuradio.vocoder import gsm_full_rate - -# Size of gsm full rate speech encoder output packet in bytes - -GSM_FRAME_SIZE = 33 - -# Size of packet in bytes that we send to GMSK modulator: -# -# Target: 256kS/sec air rate. -# -# 256kS 1 sym 1 bit 1 byte 0.020 sec 80 bytes -# ---- * ----- * ----- * ------ * --------- = -------- -# sec 8 S 1 sym 8 bits frame frame -# -# gr_simple_framer add 10 bytes of overhead. - -AIR_FRAME_SIZE = 70 - - -class digital_voice_tx(gr.hier_block): - """ - Hierarchical block for digital voice tranmission. - - The input is 8kS/sec floating point audio in the range [-1,+1] - The output is 256kS/sec GMSK modulated complex baseband signal in the range [-1,+1]. - """ - def __init__(self, fg): - samples_per_symbol = 8 - symbol_rate = 32000 - bt = 0.3 # Gaussian filter bandwidth * symbol time - - src_scale = gr.multiply_const_ff(32767) - f2s = gr.float_to_short() - voice_coder = gsm_full_rate.encode_sp() - - channel_coder = gr.fake_channel_encoder_pp(GSM_FRAME_SIZE, AIR_FRAME_SIZE) - p2s = gr.parallel_to_serial(gr.sizeof_char, AIR_FRAME_SIZE) - - mod = gmsk_mod(fg, sps=samples_per_symbol, - symbol_rate=symbol_rate, bt=bt, - p_size=AIR_FRAME_SIZE) - - fg.connect(src_scale, f2s, voice_coder, channel_coder, p2s, mod) - gr.hier_block.__init__(self, fg, src_scale, mod) - - -class digital_voice_rx(gr.hier_block): - """ - Hierarchical block for digital voice reception. - - The input is 256kS/sec GMSK modulated complex baseband signal. - The output is 8kS/sec floating point audio in the range [-1,+1] - """ - def __init__(self, fg): - samples_per_symbol = 8 - symbol_rate = 32000 - - demod = gmsk_demod(fg, sps=samples_per_symbol, - symbol_rate=symbol_rate, - p_size=AIR_FRAME_SIZE) - - s2p = gr.serial_to_parallel(gr.sizeof_char, AIR_FRAME_SIZE) - channel_decoder = gr.fake_channel_decoder_pp(AIR_FRAME_SIZE, GSM_FRAME_SIZE) - - voice_decoder = gsm_full_rate.decode_ps() - s2f = gr.short_to_float () - sink_scale = gr.multiply_const_ff(1.0/32767.) - - fg.connect(demod, s2p, channel_decoder, voice_decoder, s2f, sink_scale) - gr.hier_block.__init__(self, fg, demod, sink_scale) diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/filterbank.py b/gnuradio-core/src/python/gnuradio/blks2impl/filterbank.py deleted file mode 100644 index 29e50bc2a3..0000000000 --- a/gnuradio-core/src/python/gnuradio/blks2impl/filterbank.py +++ /dev/null @@ -1,171 +0,0 @@ -# -# Copyright 2005,2007 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. -# - -import sys -from gnuradio import gr, gru - -def _generate_synthesis_taps(mpoints): - return [] # FIXME - - -def _split_taps(taps, mpoints): - assert (len(taps) % mpoints) == 0 - result = [list() for x in range(mpoints)] - for i in xrange(len(taps)): - (result[i % mpoints]).append(taps[i]) - return [tuple(x) for x in result] - - -class synthesis_filterbank(gr.hier_block2): - """ - Uniformly modulated polyphase DFT filter bank: synthesis - - See http://cnx.org/content/m10424/latest - """ - def __init__(self, mpoints, taps=None): - """ - Takes M complex streams in, produces single complex stream out - that runs at M times the input sample rate - - Args: - mpoints: number of freq bins/interpolation factor/subbands - taps: filter taps for subband filter - - The channel spacing is equal to the input sample rate. - The total bandwidth and output sample rate are equal the input - sample rate * nchannels. - - Output stream to frequency mapping: - - channel zero is at zero frequency. - - if mpoints is odd: - - Channels with increasing positive frequencies come from - channels 1 through (N-1)/2. - - Channel (N+1)/2 is the maximum negative frequency, and - frequency increases through N-1 which is one channel lower - than the zero frequency. - - if mpoints is even: - - Channels with increasing positive frequencies come from - channels 1 through (N/2)-1. - - Channel (N/2) is evenly split between the max positive and - negative bins. - - Channel (N/2)+1 is the maximum negative frequency, and - frequency increases through N-1 which is one channel lower - than the zero frequency. - - Channels near the frequency extremes end up getting cut - off by subsequent filters and therefore have diminished - utility. - """ - item_size = gr.sizeof_gr_complex - gr.hier_block2.__init__(self, "synthesis_filterbank", - gr.io_signature(mpoints, mpoints, item_size), # Input signature - gr.io_signature(1, 1, item_size)) # Output signature - - - if taps is None: - taps = _generate_synthesis_taps(mpoints) - - # pad taps to multiple of mpoints - r = len(taps) % mpoints - if r != 0: - taps = taps + (mpoints - r) * (0,) - - # split in mpoints separate set of taps - sub_taps = _split_taps(taps, mpoints) - - self.ss2v = gr.streams_to_vector(item_size, mpoints) - self.ifft = gr.fft_vcc(mpoints, False, []) - self.v2ss = gr.vector_to_streams(item_size, mpoints) - # mpoints filters go in here... - self.ss2s = gr.streams_to_stream(item_size, mpoints) - - for i in range(mpoints): - self.connect((self, i), (self.ss2v, i)) - - self.connect(self.ss2v, self.ifft, self.v2ss) - - # build mpoints fir filters... - for i in range(mpoints): - f = gr.fft_filter_ccc(1, sub_taps[i]) - self.connect((self.v2ss, i), f) - self.connect(f, (self.ss2s, i)) - - self.connect(self.ss2s, self) - -class analysis_filterbank(gr.hier_block2): - """ - Uniformly modulated polyphase DFT filter bank: analysis - - See http://cnx.org/content/m10424/latest - """ - def __init__(self, mpoints, taps=None): - """ - Takes 1 complex stream in, produces M complex streams out - that runs at 1/M times the input sample rate - - Args: - mpoints: number of freq bins/interpolation factor/subbands - taps: filter taps for subband filter - - Same channel to frequency mapping as described above. - """ - item_size = gr.sizeof_gr_complex - gr.hier_block2.__init__(self, "analysis_filterbank", - gr.io_signature(1, 1, item_size), # Input signature - gr.io_signature(mpoints, mpoints, item_size)) # Output signature - - if taps is None: - taps = _generate_synthesis_taps(mpoints) - - # pad taps to multiple of mpoints - r = len(taps) % mpoints - if r != 0: - taps = taps + (mpoints - r) * (0,) - - # split in mpoints separate set of taps - sub_taps = _split_taps(taps, mpoints) - - # print >> sys.stderr, "mpoints =", mpoints, "len(sub_taps) =", len(sub_taps) - - self.s2ss = gr.stream_to_streams(item_size, mpoints) - # filters here - self.ss2v = gr.streams_to_vector(item_size, mpoints) - self.fft = gr.fft_vcc(mpoints, True, []) - self.v2ss = gr.vector_to_streams(item_size, mpoints) - - self.connect(self, self.s2ss) - - # build mpoints fir filters... - for i in range(mpoints): - f = gr.fft_filter_ccc(1, sub_taps[mpoints-i-1]) - self.connect((self.s2ss, i), f) - self.connect(f, (self.ss2v, i)) - self.connect((self.v2ss, i), (self, i)) - - self.connect(self.ss2v, self.fft, self.v2ss) diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/rational_resampler.py b/gnuradio-core/src/python/gnuradio/blks2impl/rational_resampler.py deleted file mode 100644 index 33b5b0b1f3..0000000000 --- a/gnuradio-core/src/python/gnuradio/blks2impl/rational_resampler.py +++ /dev/null @@ -1,127 +0,0 @@ -# -# Copyright 2005,2007 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. -# - -from gnuradio import gr, gru, filter - -_plot = None - -def design_filter(interpolation, decimation, fractional_bw): - """ - Given the interpolation rate, decimation rate and a fractional bandwidth, - design a set of taps. - - Args: - interpolation: interpolation factor (integer > 0) - decimation: decimation factor (integer > 0) - fractional_bw: fractional bandwidth in (0, 0.5) 0.4 works well. (float) - Returns: - : sequence of numbers - """ - - if fractional_bw >= 0.5 or fractional_bw <= 0: - raise ValueError, "Invalid fractional_bandwidth, must be in (0, 0.5)" - - beta = 5.0 - trans_width = 0.5 - fractional_bw - mid_transition_band = 0.5 - trans_width/2 - - taps = gr.firdes.low_pass(interpolation, # gain - 1, # Fs - mid_transition_band/interpolation, # trans mid point - trans_width/interpolation, # transition width - gr.firdes.WIN_KAISER, - beta # beta - ) - - return taps - - - -class _rational_resampler_base(gr.hier_block2): - """ - base class for all rational resampler variants. - """ - def __init__(self, resampler_base, - interpolation, decimation, taps=None, fractional_bw=None): - """ - Rational resampling polyphase FIR filter. - - Either taps or fractional_bw may be specified, but not both. - If neither is specified, a reasonable default, 0.4, is used as - the fractional_bw. - - Args: - interpolation: interpolation factor (integer > 0) - decimation: decimation factor (integer > 0) - taps: optional filter coefficients (sequence) - fractional_bw: fractional bandwidth in (0, 0.5), measured at final freq (use 0.4) (float) - """ - - if not isinstance(interpolation, int) or interpolation < 1: - raise ValueError, "interpolation must be an integer >= 1" - - if not isinstance(decimation, int) or decimation < 1: - raise ValueError, "decimation must be an integer >= 1" - - if taps is None and fractional_bw is None: - fractional_bw = 0.4 - - d = gru.gcd(interpolation, decimation) - interpolation = interpolation // d - decimation = decimation // d - - if taps is None: - taps = design_filter(interpolation, decimation, fractional_bw) - - resampler = resampler_base(interpolation, decimation, taps) - gr.hier_block2.__init__(self, "rational_resampler", - gr.io_signature(1, 1, resampler.input_signature().sizeof_stream_item(0)), - gr.io_signature(1, 1, resampler.output_signature().sizeof_stream_item(0))) - - self.connect(self, resampler, self) - - -class rational_resampler_fff(_rational_resampler_base): - def __init__(self, interpolation, decimation, taps=None, fractional_bw=None): - """ - Rational resampling polyphase FIR filter with - float input, float output and float taps. - """ - _rational_resampler_base.__init__(self, filter.rational_resampler_base_fff, - interpolation, decimation, taps, fractional_bw) - -class rational_resampler_ccf(_rational_resampler_base): - def __init__(self, interpolation, decimation, taps=None, fractional_bw=None): - """ - Rational resampling polyphase FIR filter with - complex input, complex output and float taps. - """ - _rational_resampler_base.__init__(self, filter.rational_resampler_base_ccf, - interpolation, decimation, taps, fractional_bw) - -class rational_resampler_ccc(_rational_resampler_base): - def __init__(self, interpolation, decimation, taps=None, fractional_bw=None): - """ - Rational resampling polyphase FIR filter with - complex input, complex output and complex taps. - """ - _rational_resampler_base.__init__(self, filter.rational_resampler_base_ccc, - interpolation, decimation, taps, fractional_bw) diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/stream_to_vector_decimator.py b/gnuradio-core/src/python/gnuradio/blks2impl/stream_to_vector_decimator.py deleted file mode 100644 index d6808b722f..0000000000 --- a/gnuradio-core/src/python/gnuradio/blks2impl/stream_to_vector_decimator.py +++ /dev/null @@ -1,101 +0,0 @@ -# -# Copyright 2008 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. -# - -from gnuradio import gr - -class stream_to_vector_decimator(gr.hier_block2): - """ - Convert the stream to a vector, decimate the vector stream to achieve the vector rate. - """ - - def __init__(self, item_size, sample_rate, vec_rate, vec_len): - """ - Create the block chain. - - Args: - item_size: the number of bytes per sample - sample_rate: the rate of incoming samples - vec_rate: the rate of outgoing vectors (same units as sample_rate) - vec_len: the length of the outgoing vectors in items - """ - self._vec_rate = vec_rate - self._vec_len = vec_len - self._sample_rate = sample_rate - - gr.hier_block2.__init__(self, "stream_to_vector_decimator", - gr.io_signature(1, 1, item_size), # Input signature - gr.io_signature(1, 1, item_size*vec_len)) # Output signature - - s2v = gr.stream_to_vector(item_size, vec_len) - self.one_in_n = gr.keep_one_in_n(item_size*vec_len, 1) - self._update_decimator() - self.connect(self, s2v, self.one_in_n, self) - - def set_sample_rate(self, sample_rate): - """ - Set the new sampling rate and update the decimator. - - Args: - sample_rate: the new rate - """ - self._sample_rate = sample_rate - self._update_decimator() - - def set_vec_rate(self, vec_rate): - """ - Set the new vector rate and update the decimator. - - Args: - vec_rate: the new rate - """ - self._vec_rate = vec_rate - self._update_decimator() - - def set_decimation(self, decim): - """ - Set the decimation parameter directly. - - Args: - decim: the new decimation - """ - self._decim = max(1, int(round(decim))) - self.one_in_n.set_n(self._decim) - - def _update_decimator(self): - self.set_decimation(self._sample_rate/self._vec_len/self._vec_rate) - - def decimation(self): - """ - Returns the actual decimation. - """ - return self._decim - - def sample_rate(self): - """ - Returns configured sample rate. - """ - return self._sample_rate - - def frame_rate(self): - """ - Returns actual frame rate - """ - return self._sample_rate/self._vec_len/self._decim |