diff options
Diffstat (limited to 'gr-atsc/src/lib/atsci_sssr.cc')
| -rw-r--r-- | gr-atsc/src/lib/atsci_sssr.cc | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/gr-atsc/src/lib/atsci_sssr.cc b/gr-atsc/src/lib/atsci_sssr.cc index 4ccee85de..48c0c51fb 100644 --- a/gr-atsc/src/lib/atsci_sssr.cc +++ b/gr-atsc/src/lib/atsci_sssr.cc @@ -1,19 +1,19 @@ /* -*- c++ -*- */ /* * Copyright 2002,2008 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, @@ -47,7 +47,7 @@ sipp (bool digcorr_output) return -1; // no correlation } -/* +/* * ---------------------------------------------------------------- * Segment Sync Integrator... */ @@ -61,7 +61,7 @@ sssr::seg_sync_integrator::reset () for (int i = 0; i < ATSC_DATA_SEGMENT_LENGTH; i++) d_integrator[i] = SSI_MIN; } - + int sssr::seg_sync_integrator::update (int weight, int index) { @@ -78,7 +78,7 @@ sssr::seg_sync_integrator::find_max (int *v) { int best_value = d_integrator[0]; int best_index = 0; - + for (int i = 1; i < ATSC_DATA_SEGMENT_LENGTH; i++) if (d_integrator[i] > best_value){ best_value = d_integrator[i]; @@ -101,7 +101,7 @@ atsci_sssr::atsci_sssr () : d_debug_fp(0) { reset (); - + if (_SSSR_DIAG_OUTPUT_){ const char *file = "sssr.ssout"; if ((d_debug_fp = fopen (file, "wb")) == 0){ @@ -126,7 +126,7 @@ atsci_sssr::reset () for (int i = 0; i < ATSC_DATA_SEGMENT_LENGTH; i++) d_quad_output[i] = 0; - + d_timing_adjust = 0; d_counter = 0; d_symbol_index = 0; @@ -189,7 +189,7 @@ atsci_sssr::update (sssr::sample_t sample_in, // input static const double LOOP_FILTER_TAP = 0.00025; // 0.0005 works static const double ADJUSTMENT_GAIN = 1.0e-5 / (10 * ATSC_DATA_SEGMENT_LENGTH); - + atsci_interpolator::atsci_interpolator (double nominal_ratio_of_rx_clock_to_symbol_freq) : d_debug_fp(0) { @@ -239,10 +239,10 @@ atsci_interpolator::update ( return false; // FIXME Confirm that this is right. I think it is. It was (1-d_mu) - *output_sample = d_interp.interpolate (&input_samples[*index], d_mu); + *output_sample = d_interp.interpolate (&input_samples[*index], d_mu); double filter_out = 0; - + #if 0 filter_out = d_loop.filter (timing_adjustment); @@ -262,9 +262,9 @@ atsci_interpolator::update ( d_mu = d_mu + alpha * x; // conceptually "phase" d_w = d_w + beta * x; // conceptually "frequency" - + #endif - + double s = d_mu + d_w; double float_incr = floor (s); d_mu = s - float_incr; |