/* -*- 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. */ #ifndef _FPLL_BTLOOP_COUPLING_H_ #define _FPLL_BTLOOP_COUPLING_H_ /*! * Magic coupling constant between GrAtscFPLL and GrAtscBitTimingLoop. * Trust me, you don't want to mess with this. * * The agc block buried in the FPLL indirectly sets the level of the input * to the bit timing loop. The bit timing loop's convergence properties * depend on the the mean amplitude of it's input. This constant ties * them together such that you can tweak the input level of the bit timing loop * (somewhat) without screwing everything. */ static const float FPLL_BTLOOP_COUPLING_CONST = 3.125; #endif /* _FPLL_BTLOOP_COUPLING_H_ */