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44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
/*
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* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
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* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
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*
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* OSLD-lib is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* OSLD-lib 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <complex.h>
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#ifndef CH_AWGN_
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#define CH_AWGN_
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typedef _Complex float cf;
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void ch_awgn(const cf* input, cf* output, float variance, int buff_sz);
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/* High-level API */
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typedef struct {
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const cf* input;
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int in_len;
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struct ch_awgn_ctrl_in {
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float variance; // Noise variance
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} ctrl_in;
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cf* output;
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int* out_len;
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}ch_awgn_hl;
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int ch_awgn_initialize(ch_awgn_hl* hl);
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int ch_awgn_work(ch_awgn_hl* hl);
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#endif
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