filter: adding fractional_interpolator_{cc,ff} with QA and GRC.

3 files changed, 110 insertions, 0 deletions

diff --git a/gr-filter/include/filter/CMakeLists.txt b/gr-filter/include/filter/CMakeLists.txt
index 3a1b5f150..267b8b66b 100644
--- a/gr-filter/include/filter/CMakeLists.txt
+++ b/gr-filter/include/filter/CMakeLists.txt
@@ -95,6 +95,8 @@ install(FILES
     filter_delay_fc.h
     fft_filter_ccc.h
     fft_filter_fff.h
+    fractional_interpolator_cc.h
+    fractional_interpolator_ff.h
     hilbert_fc.h
     iir_filter_ffd.h
     pfb_channelizer_ccf.h
diff --git a/gr-filter/include/filter/fractional_interpolator_cc.h b/gr-filter/include/filter/fractional_interpolator_cc.h
new file mode 100644
index 000000000..e5d066bbc
--- /dev/null
+++ b/gr-filter/include/filter/fractional_interpolator_cc.h
@@ -0,0 +1,54 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2007,2012 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.
+ */
+
+#ifndef INCLUDED_FRACTIONAL_INTERPOLATOR_CC_H
+#define	INCLUDED_FRACTIONAL_INTERPOLATOR_CC_H
+
+#include <filter/api.h>
+#include <gr_block.h>
+
+namespace gr {
+  namespace filter {
+    
+    /*!
+     * \brief Interpolating MMSE filter with complex input, complex output
+     * \ingroup filter_blk
+     */
+    class FILTER_API fractional_interpolator_cc : virtual public gr_block
+    {
+    public:
+      // gr::filter::fractional_interpolator_cc::sptr
+      typedef boost::shared_ptr<fractional_interpolator_cc> sptr;
+
+      static FILTER_API sptr make(float phase_shift,
+				  float interp_ratio);
+
+      virtual float mu() const = 0;
+      virtual float interp_ratio() const = 0;
+      virtual void set_mu (float mu) = 0;
+      virtual void set_interp_ratio(float interp_ratio) = 0;
+    };
+
+  } /* namespace filter */
+} /* namespace gr */
+
+#endif /* INCLUDED_FRACTIONAL_INTERPOLATOR_FF_H */
diff --git a/gr-filter/include/filter/fractional_interpolator_ff.h b/gr-filter/include/filter/fractional_interpolator_ff.h
new file mode 100644
index 000000000..8280baee3
--- /dev/null
+++ b/gr-filter/include/filter/fractional_interpolator_ff.h
@@ -0,0 +1,54 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2007,2012 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.
+ */
+
+#ifndef INCLUDED_FRACTIONAL_INTERPOLATOR_FF_H
+#define	INCLUDED_FRACTIONAL_INTERPOLATOR_FF_H
+
+#include <filter/api.h>
+#include <gr_block.h>
+
+namespace gr {
+  namespace filter {
+    
+    /*!
+     * \brief Interpolating MMSE filter with float input, float output
+     * \ingroup filter_blk
+     */
+    class FILTER_API fractional_interpolator_ff : virtual public gr_block
+    {
+    public:
+      // gr::filter::fractional_interpolator_ff::sptr
+      typedef boost::shared_ptr<fractional_interpolator_ff> sptr;
+
+      static FILTER_API sptr make(float phase_shift,
+				  float interp_ratio);
+
+      virtual float mu() const = 0;
+      virtual float interp_ratio() const = 0;
+      virtual void set_mu (float mu) = 0;
+      virtual void set_interp_ratio(float interp_ratio) = 0;
+    };
+
+  } /* namespace filter */
+} /* namespace gr */
+
+#endif /* INCLUDED_FRACTIONAL_INTERPOLATOR_FF_H */