diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2012-08-21 22:17:20 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2012-08-22 21:25:23 -0400 |
| commit | 3757197293ef59fe08caa9f391f9e77f072ea19f (patch) | |
| tree | a257bf4e591631c48141d95b543d771c758588c5 /gnuradio-core/src/python/gnuradio/blks2impl | |
| parent | 4a60c41913d7ebddf666d24e288533b453ee41ae (diff) | |
filter: fixing PFB GRC blocks.
Removing from grc dir and using Python-wrapper blocks for GRC components in gr-filter. Updated Python wrapper to take an empty tuple (generated by GRC when no input for a vector type) to auto-generate the taps for the PFBs.
Diffstat (limited to 'gnuradio-core/src/python/gnuradio/blks2impl')
4 files changed, 0 insertions, 340 deletions
diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/pfb_arb_resampler.py b/gnuradio-core/src/python/gnuradio/blks2impl/pfb_arb_resampler.py deleted file mode 100644 index e83c327fc8..0000000000 --- a/gnuradio-core/src/python/gnuradio/blks2impl/pfb_arb_resampler.py +++ /dev/null @@ -1,128 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2009 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, optfir - -class pfb_arb_resampler_ccf(gr.hier_block2): - ''' - Convenience wrapper for the polyphase filterbank arbitrary resampler. - - The block takes a single complex stream in and outputs a single complex - stream out. As such, it requires no extra glue to handle the input/output - streams. This block is provided to be consistent with the interface to the - other PFB block. - ''' - def __init__(self, rate, taps=None, flt_size=32, atten=100): - gr.hier_block2.__init__(self, "pfb_arb_resampler_ccf", - gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature - gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature - - self._rate = rate - self._size = flt_size - - if taps is not None: - self._taps = taps - else: - # Create a filter that covers the full bandwidth of the input signal - bw = 0.4 - tb = 0.2 - ripple = 0.1 - #self._taps = gr.firdes.low_pass_2(self._size, self._size, bw, tb, atten) - made = False - while not made: - try: - self._taps = optfir.low_pass(self._size, self._size, bw, bw+tb, ripple, atten) - made = True - except RuntimeError: - ripple += 0.01 - made = False - print("Warning: set ripple to %.4f dB. If this is a problem, adjust the attenuation or create your own filter taps." % (ripple)) - - # Build in an exit strategy; if we've come this far, it ain't working. - if(ripple >= 1.0): - raise RuntimeError("optfir could not generate an appropriate filter.") - - self.pfb = gr.pfb_arb_resampler_ccf(self._rate, self._taps, self._size) - #print "PFB has %d taps\n" % (len(self._taps),) - - self.connect(self, self.pfb) - self.connect(self.pfb, self) - - # Note -- set_taps not implemented in base class yet - def set_taps(self, taps): - self.pfb.set_taps(taps) - - def set_rate(self, rate): - self.pfb.set_rate(rate) - - -class pfb_arb_resampler_fff(gr.hier_block2): - ''' - Convenience wrapper for the polyphase filterbank arbitrary resampler. - - The block takes a single float stream in and outputs a single float - stream out. As such, it requires no extra glue to handle the input/output - streams. This block is provided to be consistent with the interface to the - other PFB block. - ''' - def __init__(self, rate, taps=None, flt_size=32, atten=100): - gr.hier_block2.__init__(self, "pfb_arb_resampler_fff", - gr.io_signature(1, 1, gr.sizeof_float), # Input signature - gr.io_signature(1, 1, gr.sizeof_float)) # Output signature - - self._rate = rate - self._size = flt_size - - if taps is not None: - self._taps = taps - else: - # Create a filter that covers the full bandwidth of the input signal - bw = 0.4 - tb = 0.2 - ripple = 0.1 - #self._taps = gr.firdes.low_pass_2(self._size, self._size, bw, tb, atten) - made = False - while not made: - try: - self._taps = optfir.low_pass(self._size, self._size, bw, bw+tb, ripple, atten) - made = True - except RuntimeError: - ripple += 0.01 - made = False - print("Warning: set ripple to %.4f dB. If this is a problem, adjust the attenuation or create your own filter taps." % (ripple)) - - # Build in an exit strategy; if we've come this far, it ain't working. - if(ripple >= 1.0): - raise RuntimeError("optfir could not generate an appropriate filter.") - - self.pfb = gr.pfb_arb_resampler_fff(self._rate, self._taps, self._size) - #print "PFB has %d taps\n" % (len(self._taps),) - - self.connect(self, self.pfb) - self.connect(self.pfb, self) - - # Note -- set_taps not implemented in base class yet - def set_taps(self, taps): - self.pfb.set_taps(taps) - - def set_rate(self, rate): - self.pfb.set_rate(rate) diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/pfb_channelizer.py b/gnuradio-core/src/python/gnuradio/blks2impl/pfb_channelizer.py deleted file mode 100644 index 4bbe1bec6c..0000000000 --- a/gnuradio-core/src/python/gnuradio/blks2impl/pfb_channelizer.py +++ /dev/null @@ -1,73 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2009,2010 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, optfir - -class pfb_channelizer_ccf(gr.hier_block2): - ''' - Make a Polyphase Filter channelizer (complex in, complex out, floating-point taps) - - This simplifies the interface by allowing a single input stream to connect to this block. - It will then output a stream for each channel. - ''' - def __init__(self, numchans, taps=None, oversample_rate=1, atten=100): - gr.hier_block2.__init__(self, "pfb_channelizer_ccf", - gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature - gr.io_signature(numchans, numchans, gr.sizeof_gr_complex)) # Output signature - - self._nchans = numchans - self._oversample_rate = oversample_rate - - if taps is not None: - self._taps = taps - else: - # Create a filter that covers the full bandwidth of the input signal - bw = 0.4 - tb = 0.2 - ripple = 0.1 - made = False - while not made: - try: - self._taps = optfir.low_pass(1, self._nchans, bw, bw+tb, ripple, atten) - made = True - except RuntimeError: - ripple += 0.01 - made = False - print("Warning: set ripple to %.4f dB. If this is a problem, adjust the attenuation or create your own filter taps." % (ripple)) - - # Build in an exit strategy; if we've come this far, it ain't working. - if(ripple >= 1.0): - raise RuntimeError("optfir could not generate an appropriate filter.") - - self.s2ss = gr.stream_to_streams(gr.sizeof_gr_complex, self._nchans) - self.pfb = gr.pfb_channelizer_ccf(self._nchans, self._taps, - self._oversample_rate) - self.connect(self, self.s2ss) - - for i in xrange(self._nchans): - self.connect((self.s2ss,i), (self.pfb,i)) - self.connect((self.pfb,i), (self,i)) - - def set_channel_map(self, newmap): - self.pfb.set_channel_map(newmap) - - diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/pfb_decimator.py b/gnuradio-core/src/python/gnuradio/blks2impl/pfb_decimator.py deleted file mode 100644 index adcdfe9ba1..0000000000 --- a/gnuradio-core/src/python/gnuradio/blks2impl/pfb_decimator.py +++ /dev/null @@ -1,69 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2009 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, optfir - -class pfb_decimator_ccf(gr.hier_block2): - ''' - Make a Polyphase Filter decimator (complex in, complex out, floating-point taps) - - This simplifies the interface by allowing a single input stream to connect to this block. - It will then output a stream that is the decimated output stream. - ''' - def __init__(self, decim, taps=None, channel=0, atten=100): - gr.hier_block2.__init__(self, "pfb_decimator_ccf", - gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature - gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature - - self._decim = decim - self._channel = channel - - if taps is not None: - self._taps = taps - else: - # Create a filter that covers the full bandwidth of the input signal - bw = 0.4 - tb = 0.2 - ripple = 0.1 - made = False - while not made: - try: - self._taps = optfir.low_pass(1, self._decim, bw, bw+tb, ripple, atten) - made = True - except RuntimeError: - ripple += 0.01 - made = False - print("Warning: set ripple to %.4f dB. If this is a problem, adjust the attenuation or create your own filter taps." % (ripple)) - - # Build in an exit strategy; if we've come this far, it ain't working. - if(ripple >= 1.0): - raise RuntimeError("optfir could not generate an appropriate filter.") - - self.s2ss = gr.stream_to_streams(gr.sizeof_gr_complex, self._decim) - self.pfb = gr.pfb_decimator_ccf(self._decim, self._taps, self._channel) - - self.connect(self, self.s2ss) - - for i in xrange(self._decim): - self.connect((self.s2ss,i), (self.pfb,i)) - - self.connect(self.pfb, self) diff --git a/gnuradio-core/src/python/gnuradio/blks2impl/pfb_interpolator.py b/gnuradio-core/src/python/gnuradio/blks2impl/pfb_interpolator.py deleted file mode 100644 index 5492dfcac6..0000000000 --- a/gnuradio-core/src/python/gnuradio/blks2impl/pfb_interpolator.py +++ /dev/null @@ -1,70 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2009 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, optfir - -class pfb_interpolator_ccf(gr.hier_block2): - ''' - Make a Polyphase Filter interpolator (complex in, complex out, floating-point taps) - - The block takes a single complex stream in and outputs a single complex - stream out. As such, it requires no extra glue to handle the input/output - streams. This block is provided to be consistent with the interface to the - other PFB block. - ''' - def __init__(self, interp, taps=None, atten=100): - gr.hier_block2.__init__(self, "pfb_interpolator_ccf", - gr.io_signature(1, 1, gr.sizeof_gr_complex), # Input signature - gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature - - self._interp = interp - self._taps = taps - - if taps is not None: - self._taps = taps - else: - # Create a filter that covers the full bandwidth of the input signal - bw = 0.4 - tb = 0.2 - ripple = 0.99 - made = False - while not made: - try: - self._taps = optfir.low_pass(self._interp, self._interp, bw, bw+tb, ripple, atten) - made = True - except RuntimeError: - ripple += 0.01 - made = False - print("Warning: set ripple to %.4f dB. If this is a problem, adjust the attenuation or create your own filter taps." % (ripple)) - - # Build in an exit strategy; if we've come this far, it ain't working. - if(ripple >= 1.0): - raise RuntimeError("optfir could not generate an appropriate filter.") - - self.pfb = gr.pfb_interpolator_ccf(self._interp, self._taps) - - self.connect(self, self.pfb) - self.connect(self.pfb, self) - - - - |