Merge commit 'v3.3.0' into upstream

[debian/gnuradio] / gr-atsc / src / lib / GrAtscFPLL.h

diff --git a/gr-atsc/src/lib/GrAtscFPLL.h b/gr-atsc/src/lib/GrAtscFPLL.h
new file mode 100644 (file)
index 0000000..f89411a
--- /dev/null
+++ b/gr-atsc/src/lib/GrAtscFPLL.h
@@ -0,0 +1,88 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2002 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 _GRATSCFPLL_H_
+#define _GRATSCFPLL_H_
+
+#include <gr_nco.h>
+#include <gr_iir.h>
+#include <gr_single_pole_iir.h>
+#include <gr_agc.h>
+#include <VrSigProc.h>
+#include <stdio.h>
+#include <atsci_diag_output.h>
+
+/*!
+ * \brief ATSC FPLL (2nd Version)
+ *
+ * Used as follows:
+ *                         float             float
+ *  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 GrAtscFPLL : public VrSigProc {
+ protected:
+
+  typedef float  iType;
+  typedef float         oType;
+  
+ public:
+
+  GrAtscFPLL (double a_initial_freq);
+  virtual ~GrAtscFPLL () {}
+
+  virtual const char *name () { return "GrAtscFPLL"; }
+
+  virtual void initialize ();
+
+  virtual int work (VrSampleRange output, void *o[],
+                   VrSampleRange inputs[], void *i[]);
+
+
+  // diagnostic routines
+  void set_initial_phase (double phase) { initial_phase = phase; }        // radians
+  void set_no_update (bool a_no_update) { debug_no_update = a_no_update; }
+
+
+ protected:
+
+  double                       initial_freq;
+  double                       initial_phase;
+  bool                         debug_no_update;
+  gr_nco<float,float>          nco;
+  gr_agc                       agc;    // automatic gain control
+  gr_single_pole_iir<float,float,float>        afci;
+  gr_single_pole_iir<float,float,float>        afcq;
+  
+#ifdef _FPLL_DIAG_OUTPUT_
+  FILE                         *fp;
+#endif
+
+};
+
+
+#endif // _GRATSCFPLL_H_