docs: This adds documentation to gr-digital in the form of a README.digital and a digital modulation page for the Doxygen manual. The manual's main page has been updated to link to the new digital modulation page.

9 files changed, 1210 insertions, 2 deletions

diff --git a/config/grc_gr_digital.m4 b/config/grc_gr_digital.m4
index 35fafa0dd..a6e2b51b5 100644
--- a/config/grc_gr_digital.m4
+++ b/config/grc_gr_digital.m4
@@ -51,6 +51,7 @@ AC_DEFUN([GRC_GR_DIGITAL],[
 	gr-digital/swig/Makefile \
 	gr-digital/swig/run_guile_tests \
 	gr-digital/examples/Makefile \
+	gr-digital/doc/Makefile \
     ])
 
     GRC_BUILD_CONDITIONAL(gr-digital,[
diff --git a/docs/doxygen/other/main_page.dox b/docs/doxygen/other/main_page.dox
index 43fcbf67a..4c5aef7a4 100644
--- a/docs/doxygen/other/main_page.dox
+++ b/docs/doxygen/other/main_page.dox
@@ -9,4 +9,6 @@ provide unified documentation for the C++ parts of the system and the
 parts written in Python (mostly hierarchical blocks).  Until this gets
 worked out, please bear with us, or better yet, solve it for us!
 
+\li \ref page_digital
+
 */
diff --git a/gr-digital/Makefile.am b/gr-digital/Makefile.am
index b70d00d05..85a9bbbde 100644
--- a/gr-digital/Makefile.am
+++ b/gr-digital/Makefile.am
@@ -21,7 +21,7 @@
 
 include $(top_srcdir)/Makefile.common
 
-SUBDIRS =  include lib
+SUBDIRS =  include lib doc
 
 if PYTHON
 SUBDIRS += swig python apps grc examples
diff --git a/gr-digital/doc/.gitignore b/gr-digital/doc/.gitignore
new file mode 100644
index 000000000..b336cc7ce
--- /dev/null
+++ b/gr-digital/doc/.gitignore
@@ -0,0 +1,2 @@
+/Makefile
+/Makefile.in
diff --git a/gr-digital/doc/Makefile.am b/gr-digital/doc/Makefile.am
new file mode 100644
index 000000000..dbfe1d5a2
--- /dev/null
+++ b/gr-digital/doc/Makefile.am
@@ -0,0 +1,27 @@
+#
+# Copyright 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.
+# 
+
+include $(top_srcdir)/Makefile.common
+
+SUBDIRS =
+
+dist_gr_doc_DATA =		\
+	README.digital
diff --git a/gr-digital/doc/Makefile.in b/gr-digital/doc/Makefile.in
new file mode 100644
index 000000000..c5c41b55b
--- /dev/null
+++ b/gr-digital/doc/Makefile.in
@@ -0,0 +1,1136 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+# Copyright 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.
+# 
+
+# -*- Makefile -*-
+#
+# Copyright 2004,2006,2007,2008,2009,2010 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.
+# 
+
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+gnuradio_core_LA = @gnuradio_core_LA@
+gnuradio_core_LDFLAG = @gnuradio_core_LDFLAG@
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+gnuradio_core_PYDIRPATH = @gnuradio_core_PYDIRPATH@
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+gnuradio_examples_INCLUDEDIR = @gnuradio_examples_INCLUDEDIR@
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+gr_atsc_LDFLAG = @gr_atsc_LDFLAG@
+gr_atsc_LIBDIRPATH = @gr_atsc_LIBDIRPATH@
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+gr_audio_INCLUDES = @gr_audio_INCLUDES@
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+gr_audio_LDFLAG = @gr_audio_LDFLAG@
+gr_audio_LIBDIRPATH = @gr_audio_LIBDIRPATH@
+gr_comedi_INCLUDEDIR = @gr_comedi_INCLUDEDIR@
+gr_comedi_INCLUDES = @gr_comedi_INCLUDES@
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+gr_digital_I = @gr_digital_I@
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+gr_digital_INCLUDES = @gr_digital_INCLUDES@
+gr_digital_LA = @gr_digital_LA@
+gr_digital_LDFLAG = @gr_digital_LDFLAG@
+gr_digital_LIBDIRPATH = @gr_digital_LIBDIRPATH@
+gr_digital_PYDIRPATH = @gr_digital_PYDIRPATH@
+gr_digital_SWIGDIRPATH = @gr_digital_SWIGDIRPATH@
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+gr_noaa_INCLUDEDIR = @gr_noaa_INCLUDEDIR@
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+gr_qtgui_LDFLAG = @gr_qtgui_LDFLAG@
+gr_qtgui_LIBDIRPATH = @gr_qtgui_LIBDIRPATH@
+gr_radio_astronomy_INCLUDEDIR = @gr_radio_astronomy_INCLUDEDIR@
+gr_radio_astronomy_INCLUDES = @gr_radio_astronomy_INCLUDES@
+gr_radio_astronomy_LA = @gr_radio_astronomy_LA@
+gr_radio_astronomy_LDFLAG = @gr_radio_astronomy_LDFLAG@
+gr_radio_astronomy_LIBDIRPATH = @gr_radio_astronomy_LIBDIRPATH@
+gr_shd_INCLUDEDIR = @gr_shd_INCLUDEDIR@
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+gr_trellis_INCLUDES = @gr_trellis_INCLUDES@
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+gr_trellis_LDFLAG = @gr_trellis_LDFLAG@
+gr_trellis_LIBDIRPATH = @gr_trellis_LIBDIRPATH@
+gr_uhd_INCLUDEDIR = @gr_uhd_INCLUDEDIR@
+gr_uhd_INCLUDES = @gr_uhd_INCLUDES@
+gr_uhd_LA = @gr_uhd_LA@
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+gr_usrp2_INCLUDEDIR = @gr_usrp2_INCLUDEDIR@
+gr_usrp2_INCLUDES = @gr_usrp2_INCLUDES@
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+gr_usrp2_LDFLAG = @gr_usrp2_LDFLAG@
+gr_usrp2_LIBDIRPATH = @gr_usrp2_LIBDIRPATH@
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+gr_usrp_INCLUDES = @gr_usrp_INCLUDES@
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+gr_usrp_LIBDIRPATH = @gr_usrp_LIBDIRPATH@
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+gr_video_sdl_LDFLAG = @gr_video_sdl_LDFLAG@
+gr_video_sdl_LIBDIRPATH = @gr_video_sdl_LIBDIRPATH@
+gr_vocoder_INCLUDEDIR = @gr_vocoder_INCLUDEDIR@
+gr_vocoder_INCLUDES = @gr_vocoder_INCLUDES@
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+gr_vocoder_LDFLAG = @gr_vocoder_LDFLAG@
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+gr_wxgui_INCLUDES = @gr_wxgui_INCLUDES@
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+gruel_INCLUDES = @gruel_INCLUDES@
+gruel_LA = @gruel_LA@
+gruel_LDFLAG = @gruel_LDFLAG@
+gruel_LIBDIRPATH = @gruel_LIBDIRPATH@
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+usrp_LIBDIRPATH = @usrp_LIBDIRPATH@
+volk_INCLUDEDIR = @volk_INCLUDEDIR@
+volk_INCLUDES = @volk_INCLUDES@
+volk_LA = @volk_LA@
+volk_LDFLAG = @volk_LDFLAG@
+volk_LIBDIRPATH = @volk_LIBDIRPATH@
+with_GUILE_LOAD_PATH = @with_GUILE_LOAD_PATH@
+with_INCLUDES = @with_INCLUDES@
+with_LIBDIRPATH = @with_LIBDIRPATH@
+with_PYDIRPATH = @with_PYDIRPATH@
+with_SWIGDIRPATH = @with_SWIGDIRPATH@
+with_SWIG_INCLUDES = @with_SWIG_INCLUDES@
+with_dirs = @with_dirs@
+
+# Every Makefile starts with common vars so we can
+# consistently use +=
+BUILT_SOURCES = 
+MOSTLYCLEANFILES = $(BUILT_SOURCES) $(STAMPS) *.pyc *.pyo *~ *.tmp *.loT \
+	.unittests/* .unittests/python/*
+
+CLEANFILES = guile.log
+DISTCLEANFILES = 
+EXTRA_DIST = 
+
+# Other common defines; use "+=" to add to these
+STAMPS = 
+AM_CFLAGS = @autoconf_default_CFLAGS@ @lf_CFLAGS@
+AM_CXXFLAGS = @autoconf_default_CXXFLAGS@ @lf_CXXFLAGS@
+
+# Sets ABI version in SONAME and appends -LIBVER to filename
+LTVERSIONFLAGS = -version-info 0:0:0 -release $(LIBVER)
+
+# includes
+grincludedir = $(includedir)/gnuradio
+
+# swig includes
+swigincludedir = $(grincludedir)/swig
+
+# Guile scheme code ends up under here:
+guiledir = $(prefix)/share/guile/site
+
+# Install the gnuradio stuff in the appropriate subdirectory
+# This usually ends up at:
+#   ${prefix}/lib/python${python_version}/site-packages/gnuradio
+grpythondir = $(pythondir)/gnuradio
+grpyexecdir = $(pyexecdir)/gnuradio
+
+# Install the non-gnuradio usrp stuff in the appropriate subdirectory
+# This usually ends up at:
+#   ${prefix}/lib/python${python_version}/site-packages/usrpm
+usrppythondir = $(pythondir)/usrpm
+usrppyexecdir = $(pyexecdir)/usrpm
+
+# This used to be set in configure.ac but is now defined here for all 
+# Makefiles when this fragment is included.
+STD_DEFINES_AND_INCLUDES = $(DEFINES) $(GNURADIO_INCLUDES) \
+	$(GRUEL_INCLUDES) $(VOLK_INCLUDES) $(BOOST_CPPFLAGS)
+
+
+# when including for compilation from pre-installed libraries and such,
+# need to make sure those are put last on the compile command
+WITH_INCLUDES = @with_INCLUDES@
+WITH_SWIG_INCLUDES = @with_SWIG_INCLUDES@
+
+# Where to find gnuradio include files in the current build tree
+# top_srcdir for original stuff, top_builddir for generated files
+GNURADIO_INCLUDES = @gnuradio_core_INCLUDES@
+
+# How to link in GNU Radio core library from inside the tree
+GNURADIO_CORE_LA = @gnuradio_core_LA@
+
+# How to link in the GRUEL library from inside the tree
+GRUEL_INCLUDES = @gruel_INCLUDES@
+GRUEL_LA = @gruel_LA@
+
+# How to link in the VOLK library from inside the tree
+VOLK_INCLUDES = @volk_INCLUDES@
+VOLK_LA = @volk_LA@
+
+# How to link in the USRP library from inside the tree
+USRP_INCLUDES = @usrp_INCLUDES@
+USRP_LA = @usrp_LA@
+
+# GR-DIGITAL includes and libraries
+GR_DIGITAL_INCLUDES = @gr_digital_INCLUDES@
+GR_DIGITAL_LA = @gr_digital_LA@
+
+# Fix for BSD make not defining $(RM).  We define it now in configure.ac
+# using AM_PATH_PROG, but now here have to add a -f to be like GNU make
+RM = $(RM_PROG) -f
+RUN_GUILE = GUILE_LOAD_PATH="@abs_top_srcdir@/gruel/src/scheme" @GUILE@ -e main -s
+
+# Base directory for example applications
+exampledir = $(datadir)/gnuradio/examples
+gr_docdir = $(docdir)-$(DOCVER)
+
+# System configuration files
+gr_prefsdir = $(GR_PREFSDIR)
+
+# Data directory for grc block wrappers
+grc_blocksdir = $(pkgdatadir)/grc/blocks
+SUBDIRS = 
+dist_gr_doc_DATA = \
+	README.digital
+
+all: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) all-recursive
+
+.SUFFIXES:
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu gr-digital/doc/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu gr-digital/doc/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+install-dist_gr_docDATA: $(dist_gr_doc_DATA)
+	@$(NORMAL_INSTALL)
+	test -z "$(gr_docdir)" || $(MKDIR_P) "$(DESTDIR)$(gr_docdir)"
+	@list='$(dist_gr_doc_DATA)'; test -n "$(gr_docdir)" || list=; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(gr_docdir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(gr_docdir)" || exit $$?; \
+	done
+
+uninstall-dist_gr_docDATA:
+	@$(NORMAL_UNINSTALL)
+	@list='$(dist_gr_doc_DATA)'; test -n "$(gr_docdir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	test -n "$$files" || exit 0; \
+	echo " ( cd '$(DESTDIR)$(gr_docdir)' && rm -f" $$files ")"; \
+	cd "$(DESTDIR)$(gr_docdir)" && rm -f $$files
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run `make' without going through this Makefile.
+# To change the values of `make' variables: instead of editing Makefiles,
+# (1) if the variable is set in `config.status', edit `config.status'
+#     (which will cause the Makefiles to be regenerated when you run `make');
+# (2) otherwise, pass the desired values on the `make' command line.
+$(RECURSIVE_TARGETS):
+	@fail= failcom='exit 1'; \
+	for f in x $$MAKEFLAGS; do \
+	  case $$f in \
+	    *=* | --[!k]*);; \
+	    *k*) failcom='fail=yes';; \
+	  esac; \
+	done; \
+	dot_seen=no; \
+	target=`echo $@ | sed s/-recursive//`; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done; \
+	if test "$$dot_seen" = "no"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
+	fi; test -z "$$fail"
+
+$(RECURSIVE_CLEAN_TARGETS):
+	@fail= failcom='exit 1'; \
+	for f in x $$MAKEFLAGS; do \
+	  case $$f in \
+	    *=* | --[!k]*);; \
+	    *k*) failcom='fail=yes';; \
+	  esac; \
+	done; \
+	dot_seen=no; \
+	case "$@" in \
+	  distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+	  *) list='$(SUBDIRS)' ;; \
+	esac; \
+	rev=''; for subdir in $$list; do \
+	  if test "$$subdir" = "."; then :; else \
+	    rev="$$subdir $$rev"; \
+	  fi; \
+	done; \
+	rev="$$rev ."; \
+	target=`echo $@ | sed s/-recursive//`; \
+	for subdir in $$rev; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done && test -z "$$fail"
+tags-recursive:
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+	  test "$$subdir" = . || ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) tags); \
+	done
+ctags-recursive:
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  test "$$subdir" = . || ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) ctags); \
+	done
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
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+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	mkid -fID $$unique
+tags: TAGS
+
+TAGS: tags-recursive $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	set x; \
+	here=`pwd`; \
+	if ($(ETAGS) --etags-include --version) >/dev/null 2>&1; then \
+	  include_option=--etags-include; \
+	  empty_fix=.; \
+	else \
+	  include_option=--include; \
+	  empty_fix=; \
+	fi; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test ! -f $$subdir/TAGS || \
+	      set "$$@" "$$include_option=$$here/$$subdir/TAGS"; \
+	  fi; \
+	done; \
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: CTAGS
+CTAGS: ctags-recursive $(HEADERS) $(SOURCES)  $(TAGS_DEPENDENCIES) \
+		$(TAGS_FILES) $(LISP)
+	list='$(SOURCES) $(HEADERS)  $(LISP) $(TAGS_FILES)'; \
+	unique=`for i in $$list; do \
+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
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+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test -d "$(distdir)/$$subdir" \
+	    || $(MKDIR_P) "$(distdir)/$$subdir" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    dir1=$$subdir; dir2="$(distdir)/$$subdir"; \
+	    $(am__relativize); \
+	    new_distdir=$$reldir; \
+	    dir1=$$subdir; dir2="$(top_distdir)"; \
+	    $(am__relativize); \
+	    new_top_distdir=$$reldir; \
+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
+	    echo "     am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)"; \
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+	      $(MAKE) $(AM_MAKEFLAGS) \
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+		am__skip_length_check=: \
+		am__skip_mode_fix=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+	$(MAKE) $(AM_MAKEFLAGS) \
+	  top_distdir="$(top_distdir)" distdir="$(distdir)" \
+	  dist-hook
+check-am: all-am
+check: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) check-recursive
+all-am: Makefile $(DATA)
+installdirs: installdirs-recursive
+installdirs-am:
+	for dir in "$(DESTDIR)$(gr_docdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) install-recursive
+install-exec: install-exec-recursive
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+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+	-test -z "$(MOSTLYCLEANFILES)" || rm -f $(MOSTLYCLEANFILES)
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+	-test -z "$(DISTCLEANFILES)" || rm -f $(DISTCLEANFILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+clean: clean-recursive
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-recursive
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html: html-recursive
+
+html-am:
+
+info: info-recursive
+
+info-am:
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+install-data-am: install-dist_gr_docDATA
+
+install-dvi: install-dvi-recursive
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-recursive
+
+install-html-am:
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+install-info: install-info-recursive
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+install-man:
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+install-pdf: install-pdf-recursive
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+install-ps: install-ps-recursive
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+install-ps-am:
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+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+	-rm -f Makefile
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+
+mostlyclean: mostlyclean-recursive
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+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
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+pdf: pdf-recursive
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+pdf-am:
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+	ctags-recursive install install-am install-strip \
+	tags-recursive
+
+.PHONY: $(RECURSIVE_CLEAN_TARGETS) $(RECURSIVE_TARGETS) CTAGS GTAGS \
+	all all-am check check-am clean clean-generic clean-libtool \
+	ctags ctags-recursive dist-hook distclean distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dist_gr_docDATA install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	installdirs-am maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \
+	ps ps-am tags tags-recursive uninstall uninstall-am \
+	uninstall-dist_gr_docDATA
+
+
+# Base directory for documentation (docdir undefined in autoconf < 1.60)
+docdir ?= $(datadir)/doc/$(PACKAGE)
+
+# Don't distribute the files defined in the variable 'no_dist_files'
+
+dist-hook:
+	@for file in $(no_dist_files); do \
+		echo $(RM) $(distdir)/$$file; \
+		$(RM) $(distdir)/$$file; \
+	done
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/gr-digital/doc/README.digital b/gr-digital/doc/README.digital
new file mode 100644
index 000000000..f4d40f3a0
--- /dev/null
+++ b/gr-digital/doc/README.digital
@@ -0,0 +1,13 @@
+This is the gr-digital package. It contains all of the digital
+modulation blocks, utilities, and examples. To use the digital blocks,
+the Python namespaces is in gnuradio.digital, which would be normally
+imported as:
+
+    from gnuradio import digital
+
+See the Doxygen documentation for details about the blocks available
+in this package. A quick listing of the details can be found in Python
+after importing by using: 
+
+    help(digital)
+
diff --git a/gr-digital/doc/digital.dox b/gr-digital/doc/digital.dox
new file mode 100644
index 000000000..dc92ccc47
--- /dev/null
+++ b/gr-digital/doc/digital.dox
@@ -0,0 +1,23 @@
+/*! \page page_digital Digital Modulation
+
+\section Introduction
+This is the gr-digital package. It contains all of the digital
+modulation blocks, utilities, and examples. To use the digital blocks,
+the Python namespaces is in gnuradio.digital, which would be normally
+imported as:
+
+\code
+    from gnuradio import digital
+\endcode
+
+See the Doxygen documentation for details about the blocks available
+in this package. The relavent blocks are listed in the \ref digital group.
+
+A quick listing of the details can be found in Python after importing
+by using:
+
+\code
+    help(digital)
+\endcode
+
+*/
diff --git a/gr-digital/python/__init__.py b/gr-digital/python/__init__.py
index 0fc48cc79..ca46dcfdb 100644
--- a/gr-digital/python/__init__.py
+++ b/gr-digital/python/__init__.py
@@ -1,4 +1,3 @@
-#
 # Copyright 2011 Free Software Foundation, Inc.
 # 
 # This file is part of GNU Radio
@@ -19,6 +18,11 @@
 # Boston, MA 02110-1301, USA.
 # 
 
+'''
+This is the gr-digital package. It contains all of the blocks,
+utilities, and examples for doing digital modulation and demodulation.
+'''
+
 # The presence of this file turns this directory into a Python package
 
 from digital_swig import *