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decode_ccsds_27_fb.h
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/* -*- c++ -*- */
/*
* Copyright 2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifndef INCLUDED_FEC_DECODE_CCSDS_27_FB_H
#define INCLUDED_FEC_DECODE_CCSDS_27_FB_H
#include <gnuradio/fec/api.h>
#include <gnuradio/sync_decimator.h>
namespace gr {
namespace fec {
/*! \brief A rate 1/2, k=7 convolutional decoder for the CCSDS standard
* \ingroup error_coding_blk
*
* \details
* This block performs soft-decision convolutional decoding using the Viterbi
* algorithm.
*
* The input is a stream of (possibly noise corrupted) floating point values
* nominally spanning [-1.0, 1.0], representing the encoded channel symbols
* 0 (-1.0) and 1 (1.0), with erased symbols at 0.0.
*
* The output is MSB first packed bytes of decoded values.
*
* As a rate 1/2 code, there will be one output byte for every 16 input symbols.
*
* This block is designed for continuous data streaming, not packetized data.
* The first 32 bits out will be zeroes, with the output delayed four bytes
* from the corresponding inputs.
*/
class FEC_API decode_ccsds_27_fb : virtual public sync_decimator
{
public:
// gr::fec::decode_ccsds_27_fb::sptr
typedef std::shared_ptr<decode_ccsds_27_fb> sptr;
static sptr make();
};
} /* namespace fec */
} /* namespace gr */
#endif /* INCLUDED_FEC_DECODE_CCSDS_27_FB_H */
gr::fec::decode_ccsds_27_fb
A rate 1/2, k=7 convolutional decoder for the CCSDS standard.
Definition decode_ccsds_27_fb.h:41
gr::fec::decode_ccsds_27_fb::make
static sptr make()
gr::fec::decode_ccsds_27_fb::sptr
std::shared_ptr< decode_ccsds_27_fb > sptr
Definition decode_ccsds_27_fb.h:44
gr::sync_decimator
synchronous N:1 input to output with history
Definition sync_decimator.h:26
api.h
FEC_API
#define FEC_API
Definition gr-fec/include/gnuradio/fec/api.h:18
gr
GNU Radio logging wrapper.
Definition basic_block.h:29
sync_decimator.h