65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
/*
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* routines for CIC filter, delay line
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*
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* Copyright 2012, KA1RBI
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*
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* This file is part of OP25.
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*
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* OP25 is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* OP25 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OP25; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef INCLUDED_CIC_FILTER_H
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#define INCLUDED_CIC_FILTER_H 1
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#include <stdint.h>
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#include <assert.h>
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#include <gr_complex.h>
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class integrator { /* integrator */
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public:
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integrator();
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~integrator();
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int64_t cycle(int64_t c1);
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private:
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// int64_t d_l;
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int64_t d_sum;
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};
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class comb { /* comb */
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public:
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comb(int max_d);
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~comb();
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int64_t cycle(int64_t c1, int idx);
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private:
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int64_t *d_l;
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int d_max_d;
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int d_cur_d;
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};
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class delay { /* delay */
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public:
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delay(int max_d);
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~delay();
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gr_complex get(int idx);
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gr_complex cycle(gr_complex c1, int idx);
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private:
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gr_complex *d_l;
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int d_max_d;
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int d_cur_d;
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};
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#endif /* INCLUDED_CIC_FILTER_H */
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