3 * Copyright 2002 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
24 #ifndef _GRATSCFPLL_H_
25 #define _GRATSCFPLL_H_
29 #include <gr_single_pole_iir.h>
31 #include <VrSigProc.h>
33 #include <atsci_diag_output.h>
36 * \brief ATSC FPLL (2nd Version)
40 * A/D --> GrFIRfilterFFF ----> GrAtscFPLL ---->
42 * We use GrFIRfilterFFF to bandpass filter the signal of interest.
44 * This class accepts a single real input and produces a single real output
47 class GrAtscFPLL : public VrSigProc {
55 GrAtscFPLL (double a_initial_freq);
56 virtual ~GrAtscFPLL () {}
58 virtual const char *name () { return "GrAtscFPLL"; }
60 virtual void initialize ();
62 virtual int work (VrSampleRange output, void *o[],
63 VrSampleRange inputs[], void *i[]);
66 // diagnostic routines
67 void set_initial_phase (double phase) { initial_phase = phase; } // radians
68 void set_no_update (bool a_no_update) { debug_no_update = a_no_update; }
76 gr_nco<float,float> nco;
77 gr_agc agc; // automatic gain control
78 gr_single_pole_iir<float,float,float> afci;
79 gr_single_pole_iir<float,float,float> afcq;
81 #ifdef _FPLL_DIAG_OUTPUT_
88 #endif // _GRATSCFPLL_H_