1 files changed, 0 insertions, 137 deletions
diff --git a/gr-atsc/src/lib/atsc_fpll.cc b/gr-atsc/src/lib/atsc_fpll.cc
deleted file mode 100644
index c8d62c415..000000000
--- a/gr-atsc/src/lib/atsc_fpll.cc
+++ /dev/null
@@ -1,137 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2006,2010 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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <atsc_fpll.h>
-#include <gr_io_signature.h>
-#include <atsc_consts.h>
-#include <algorithm>
-#include "fpll_btloop_coupling.h"
-#include <gr_math.h>
-
-atsc_fpll_sptr
-atsc_make_fpll()
-{
-  return gnuradio::get_initial_sptr(new atsc_fpll());
-}
-
-
-/*
- * 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;
-
-
-
-atsc_fpll::atsc_fpll()
-  : gr_sync_block("atsc_fpll",
-		  gr_make_io_signature(1, 1, sizeof(float)),
-		  gr_make_io_signature(1, 1, sizeof(float))),
-		  initial_phase(0)
-{
-  initial_freq = 5.75e6 - 3e6 + 0.31e6 + 5e3; // a_initial_freq;
-  agc.set_rate (FPLL_AGC_RATE);
-  agc.set_reference (FPLL_AGC_REFERENCE);
-  initialize();
-}
-
-
-void
-atsc_fpll::initialize ()
-{
-  float Fs = 19.2e6;
-
-  float alpha = 1 - exp(-1.0 / Fs / 5e-6);
-
-  afci.set_taps (alpha);
-  afcq.set_taps (alpha);
-
-  printf("Setting initial_freq: %f\n",initial_freq);
-  nco.set_freq (initial_freq / Fs * 2 * M_PI);
-  nco.set_phase (initial_phase);
-}
-
-
-int
-atsc_fpll::work (int noutput_items,
-		       gr_vector_const_void_star &input_items,
-		       gr_vector_void_star &output_items)
-{
-  const float *in = (const float *) input_items[0];
-  float *out = (float *) output_items[0];
-
-  for (int k = 0; k < noutput_items; 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);
-    float x = gr_fast_atan2f(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;
-
-    nco.adjust_phase (alpha * x);
-    nco.adjust_freq (beta * x);
-
-  }
-
-  return noutput_items;
-}
-
-
-