From 13031bba1d7310c2b70830eb5a9a23e63808acc9 Mon Sep 17 00:00:00 2001
From: Johnathan Corgan <johnathan@corganlabs.com>
Date: Mon, 6 Apr 2015 20:22:14 -0700
Subject: digital: adds corr_est_cc correlation estimator block
This commit is almost entirely based on the correlate_and_sync_cc update
by Nick Foster <bistromath@gmail.com> and Andy Walls <andy@silverblocksystems.net>,
but has been renamed to corr_est_cc in order to be included in the 3.7 API
without compatibility issues.
---
gr-digital/lib/modulate_vector.cc | 70 +++++++++++++++++++++++++++++++++++++++
1 file changed, 70 insertions(+)
create mode 100644 gr-digital/lib/modulate_vector.cc
(limited to 'gr-digital/lib/modulate_vector.cc')
diff --git a/gr-digital/lib/modulate_vector.cc b/gr-digital/lib/modulate_vector.cc
new file mode 100644
index 0000000000..281e3435c5
--- /dev/null
+++ b/gr-digital/lib/modulate_vector.cc
@@ -0,0 +1,70 @@
+/*
+* Copyright 2015 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.
+*
+*/
+
+/*
+* Generate a modulated transmit vector corresponding to a particular
+* data sequence, resampling rate, and shaping filter. The output is
+* suitable for use as a candidate filter for the correlate_and_sync
+* block, or just for prototyping.
+*
+* It accepts a sptr to a modulator block as an argument; given
+* suitable data vectors and arguments you should be able to use any of
+* the GNU Radio modulator blocks as a modulator. Be careful that some
+* modulators expect packed words, some expect unpacked words, and some
+* have unique expectations, requirements, or limitations.
+
+* modulator as: gr.block or gr.hier_block
+* taps as: list or array
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gnuradio/blocks/vector_source_b.h>
+#include <gnuradio/blocks/vector_sink_c.h>
+#include <gnuradio/filter/fir_filter_ccf.h>
+#include <gnuradio/top_block.h>
+#include <gnuradio/digital/modulate_vector.h>
+
+namespace gr {
+ namespace digital {
+ std::vector<gr_complex> modulate_vector_bc(basic_block_sptr modulator,
+ std::vector<uint8_t> data,
+ std::vector<float> taps)
+ {
+ blocks::vector_source_b::sptr vector_src = blocks::vector_source_b::make(data);
+ filter::fir_filter_ccf::sptr filter = filter::fir_filter_ccf::make(1, taps);
+ blocks::vector_sink_c::sptr vector_sink = blocks::vector_sink_c::make();
+
+ top_block_sptr tb = make_top_block("modulate_vector");
+
+ tb->connect(vector_src, 0, modulator, 0);
+ tb->connect(modulator, 0, filter, 0);
+ tb->connect(filter, 0, vector_sink, 0);
+
+ tb->run();
+
+ return vector_sink->data();
+ }
+ } /* namespace digital */
+} /* namespace gr */
--
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