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GrAtscBitTimingLoop3.h

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00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2002 Free Software Foundation, Inc. 00004 * 00005 * This file is part of GNU Radio 00006 * 00007 * GNU Radio is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License as published by 00009 * the Free Software Foundation; either version 2, or (at your option) 00010 * any later version. 00011 * 00012 * GNU Radio is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 * GNU General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU General Public License 00018 * along with GNU Radio; see the file COPYING. If not, write to 00019 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 00020 * Boston, MA 02111-1307, USA. 00021 */ 00022 00023 #ifndef _GRATSCBITTIMINGLOOP3_H_ 00024 #define _GRATSCBITTIMINGLOOP3_H_ 00025 00026 #include <cstdio> 00027 #include <VrDecimatingSigProc.h> 00028 #include <atsc_diag_output.h> 00029 #include <atsc_sssr.h> 00030 #include <atsc_syminfo.h> 00031 00039 class GrAtscBitTimingLoop3 : public VrDecimatingSigProc<float,float> { 00040 00041 public: 00042 00043 GrAtscBitTimingLoop3 (double ratio_of_rx_clock_to_symbol_freq); 00044 virtual ~GrAtscBitTimingLoop3 () { }; 00045 00046 virtual const char *name () { return "GrAtscBitTimingLoop3"; } 00047 00048 virtual int forecast (VrSampleRange output, 00049 VrSampleRange inputs[]); 00050 00051 virtual int work (VrSampleRange output, void *o[], 00052 VrSampleRange inputs[], void *i[]); 00053 00054 // debug (NOPs) 00055 void set_mu (double a_mu) { } 00056 void set_no_update (bool a_no_update) { } 00057 void set_loop_filter_tap (double tap) { } 00058 void set_timing_rate (double rate) { } 00059 00060 protected: 00061 00062 typedef float iType; 00063 typedef float oDataType; 00064 typedef atsc::syminfo oTagType; 00065 00066 atsc_sssr d_sssr; 00067 atsc_interpolator d_interp; 00068 VrSampleIndex d_next_input; 00069 double d_rx_clock_to_symbol_freq; 00070 }; 00071 00072 #endif // _GRATSCBITTIMINGLOOP3_H_

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