Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-core / src / lib / general / gr_pn_correlator_cc.h

diff --git a/gnuradio-core/src/lib/general/gr_pn_correlator_cc.h b/gnuradio-core/src/lib/general/gr_pn_correlator_cc.h
new file mode 100644 (file)
index 0000000..73bb7aa
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+++ b/gnuradio-core/src/lib/general/gr_pn_correlator_cc.h
@@ -0,0 +1,61 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2007 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_GR_PN_CORRELATOR_CC_H
+#define INCLUDED_GR_PN_CORRELATOR_CC_H
+
+#include <gr_sync_decimator.h>
+#include <gri_glfsr.h>
+
+class gr_pn_correlator_cc;
+typedef boost::shared_ptr<gr_pn_correlator_cc> gr_pn_correlator_cc_sptr;
+
+gr_pn_correlator_cc_sptr
+gr_make_pn_correlator_cc(int degree, int mask=0, int seed=1);
+/*!
+ * \brief PN code sequential search correlator
+ *
+ * \ingroup sync_blk
+ * Receives complex baseband signal, outputs complex correlation against
+ * reference PN code, one sample per PN code period
+ */
+
+class gr_pn_correlator_cc : public gr_sync_decimator
+{
+  friend gr_pn_correlator_cc_sptr gr_make_pn_correlator_cc(int degree, int mask, int seed);
+
+  int        d_len;
+  float      d_pn;
+  gri_glfsr *d_reference;
+
+ protected:
+  gr_pn_correlator_cc(int degree, int mask, int seed);
+
+ public:
+  virtual int work(int noutput_items,
+                  gr_vector_const_void_star &input_items,
+                  gr_vector_void_star &output_items);
+
+  ~gr_pn_correlator_cc();
+};
+
+#endif /* INCLUDED_GR_PN_CORRELATOR_CC_H */