1 files changed, 0 insertions, 150 deletions
diff --git a/gr-atsc/lib/GrAtscFPLL.cc b/gr-atsc/lib/GrAtscFPLL.cc
deleted file mode 100644
index e0919e0181..0000000000
--- a/gr-atsc/lib/GrAtscFPLL.cc
+++ /dev/null
@@ -1,150 +0,0 @@
-/* -*- 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.
- */
-
-#include <gnuradio/atsc/GrAtscFPLL.h>
-#include <algorithm>
-#include "fpll_btloop_coupling.h"
-
-/*
- * I strongly suggest that you not mess with these...
- *
- * They are strongly coupled into the symbol timing code and
- * their value also sets the level of the symbols going
- * into the equalizer and viterbi decoder.
- */
-static const float FPLL_AGC_REFERENCE = 2.5 * FPLL_BTLOOP_COUPLING_CONST;
-static const float FPLL_AGC_RATE = 0.25e-6;
-
-
-GrAtscFPLL::GrAtscFPLL (double a_initial_freq)
-  : VrSigProc (1, sizeof (iType), sizeof (oType)),
-    initial_phase(0), debug_no_update(false)
-{
-  initial_freq = a_initial_freq;
-  agc.set_rate (FPLL_AGC_RATE);
-  agc.set_reference (FPLL_AGC_REFERENCE);
-
-  if (_FPLL_DIAG_OUTPUT_){
-    fp = fopen ("fpll.out", "w");
-    if (fp == 0){
-      perror ("fpll.out");
-      exit (1);
-    }
-  }
-
-}
-
-void
-GrAtscFPLL::initialize ()
-{
-  float Fs = getInputSamplingFrequencyN (0);
-
-  float alpha = 1 - exp(-1.0 / Fs / 5e-6);
-
-  afci.set_taps (alpha);
-  afcq.set_taps (alpha);
-
-  nco.set_freq (initial_freq / Fs * 2 * M_PI);
-  nco.set_phase (initial_phase);
-}
-
-int
-GrAtscFPLL::work (VrSampleRange output, void *ao[],
-		  VrSampleRange inputs[], void *ai[])
-{
-  iType	 *in = ((iType **)ai)[0];
-  oType  *out = ((oType **)ao)[0];
-
-  unsigned int	k;
-
-  for (k = 0; k < output.size; k++){
-
-    float a_cos, a_sin;
-
-    float input = agc.scale (in[k]);
-
-    nco.step ();		// increment phase
-    nco.sincos (a_sin, a_cos);	// compute cos and sin
-
-    float I = input * a_sin;
-    float Q = input * a_cos;
-
-    out[k] = I;
-
-    float filtered_I = afci.filter (I);
-    float filtered_Q = afcq.filter (Q);
-
-    // phase detector
-
-    float x = atan2 (filtered_Q, filtered_I);
-
-    // avoid slamming filter with big transitions
-
-    static const float limit = M_PI / 2;
-
-    if (x > limit)
-      x = limit;
-    else if (x < -limit)
-      x = -limit;
-
-    // static const float alpha = 0.037;   // Max value
-    // static const float alpha = 0.005;   // takes about 5k samples to pull in, stddev = 323
-    // static const float alpha = 0.002;   // takes about 15k samples to pull in, stddev =  69
-				           //  or about 120k samples on noisy data,
-    static const float alpha = 0.001;
-    static const float beta = alpha * alpha / 4;
-
-
-    if (!debug_no_update){
-      nco.adjust_phase (alpha * x);
-      nco.adjust_freq (beta * x);
-    }
-
-    if (_FPLL_DIAG_OUTPUT_){
-#if 0	// lots of data...
-      float	iodata[8];
-      iodata[0] = nco.get_freq () * getSamplingFrequency () * (1.0 / (2 * M_PI));
-      iodata[1] = in[k];
-      iodata[2] = input;
-      iodata[3] = I;
-      iodata[4] = Q;
-      iodata[5] = filtered_I;
-      iodata[6] = filtered_Q;
-      iodata[7] = x;
-      if (fwrite (iodata, sizeof (iodata), 1, fp) != 1){
-	perror ("fwrite: fpll");
-	exit (1);
-      }
-#else	// just the frequency
-      float	iodata[1];
-      iodata[0] = nco.get_freq () * getSamplingFrequency () * (1.0 / (2 * M_PI));
-      if (fwrite (iodata, sizeof (iodata), 1, fp) != 1){
-	perror ("fwrite: fpll");
-	exit (1);
-      }
-#endif
-    }
-  }
-
-  return output.size;
-}
-