1 files changed, 70 insertions, 0 deletions
diff --git a/gr-digital/include/gnuradio/digital/modulate_vector.h b/gr-digital/include/gnuradio/digital/modulate_vector.h
new file mode 100644
index 0000000000..6083099a89
--- /dev/null
+++ b/gr-digital/include/gnuradio/digital/modulate_vector.h
@@ -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.
+ */
+
+#ifndef INCLUDED_DIGITAL_MODULATE_VECTOR_H
+#define INCLUDED_DIGITAL_MODULATE_VECTOR_H
+
+#include <gnuradio/digital/api.h>
+#include <gnuradio/types.h>
+
+namespace gr {
+    namespace digital {
+
+      /*!
+       * \brief Modulate a vector of data and apply a shaping filter.
+       *
+       * \p modulator: Pointer to a byte-to-complex modulator block.
+       * \p data: Vector of bytes to modulate into symbols.
+       * \p taps: Post-modulation symbol shaping filter taps.
+       *
+       * \details
+       * This function modulates the input vector and applies a
+       * symbol shaping filter. It is intended for use with the
+       * corr_est_cc block as the symbol stream to correlate
+       * against.
+       *
+       * Any differential encoding or other data coding must be
+       * performed on the input vector before this modulation
+       * operation.
+       *
+       * Be aware that the format of the incoming data must match
+       * the format the modulator block is expecting. GNURadio
+       * modulator blocks are inconsistent in their data type
+       * expectations. For instance, cpmmod_bc expects unpacked,
+       * signed bytes in (-1, 1), while gmsk_mod expects packed,
+       * unsigned bytes in (0, 1). In other words, the output of
+       * gmsk_mod given the input vector [0xaa, 0x00] is equivalent
+       * to the output of cpmmod_bc given the input vector
+       * [1,255,1,255,1,255,1,255,255,255,255,255,255,255,255,255]
+       *
+       * Please check the documentation or source of the modulator
+       * before using this function.
+       *
+       */
+      DIGITAL_API std::vector<gr_complex>
+        modulate_vector_bc(basic_block_sptr modulator,
+                           std::vector<uint8_t> data,
+                           std::vector<float> taps);
+
+    } /* namespace digital */
+} /* namespace gr */
+
+#endif /* INCLUDED_DIGITAL_MODULATE_VECTOR_H */