1 files changed, 78 insertions, 0 deletions
diff --git a/gr-atsc/src/lib/atsc_fpll.h b/gr-atsc/src/lib/atsc_fpll.h
new file mode 100644
index 000000000..b6213bac7
--- /dev/null
+++ b/gr-atsc/src/lib/atsc_fpll.h
@@ -0,0 +1,78 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2006 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 2, 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+#ifndef INCLUDED_ATSC_FPLL_H
+#define INCLUDED_ATSC_FPLL_H
+
+#include <gr_sync_block.h>
+#include <gr_nco.h>
+#include <gr_single_pole_iir.h>
+#include <gri_agc.h>
+#include <stdio.h>
+#include <atsci_diag_output.h>
+
+class atsc_fpll;
+typedef boost::shared_ptr<atsc_fpll> atsc_fpll_sptr;
+
+atsc_fpll_sptr atsc_make_fpll();
+
+/*!
+ * \brief ATSC FPLL (2nd Version)
+ * \ingroup atsc
+ *
+ *  A/D --> GrFIRfilterFFF ----> GrAtscFPLL ---->
+ *
+ * We use GrFIRfilterFFF to bandpass filter the signal of interest.
+ *
+ * This class accepts a single real input and produces a single real output
+ */
+
+class atsc_fpll : public gr_sync_block
+{
+  friend atsc_fpll_sptr atsc_make_fpll();
+
+  atsc_fpll();
+
+public:
+
+  int work (int noutput_items,
+	    gr_vector_const_void_star &input_items,
+	    gr_vector_void_star &output_items);
+
+  void reset() { /* nop */ }
+
+  void initialize () ;
+
+ protected:
+
+  double                        initial_freq;
+  double                        initial_phase;
+  bool                          debug_no_update;
+  gr_nco<float,float>           nco;
+  gri_agc                        agc;    // automatic gain control
+  gr_single_pole_iir<float,float,float> afci;
+  gr_single_pole_iir<float,float,float> afcq;
+
+
+};
+
+
+#endif /* INCLUDED_ATSC_FPLL_H */