GNU Radio C++ API Reference: decode_ccsds_27_fb.h Source File

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decode_ccsds_27_fb.h
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1/* -*- c++ -*- */
2/*
3 * Copyright 2012 Free Software Foundation, Inc.
4 *
5 * This file is part of GNU Radio
6 *
7 * SPDX-License-Identifier: GPL-3.0-or-later
8 *
9 */
10
11#ifndef INCLUDED_FEC_DECODE_CCSDS_27_FB_H
12#define INCLUDED_FEC_DECODE_CCSDS_27_FB_H
13
14#include <gnuradio/fec/api.h>
15#include <gnuradio/sync_decimator.h>
16
17namespace gr {
18namespace fec {
19
20/*! \brief A rate 1/2, k=7 convolutional decoder for the CCSDS standard
21 * \ingroup error_coding_blk
22 *
23 * \details
24 * This block performs soft-decision convolutional decoding using the Viterbi
25 * algorithm.
26 *
27 * The input is a stream of (possibly noise corrupted) floating point values
28 * nominally spanning [-1.0, 1.0], representing the encoded channel symbols
29 * 0 (-1.0) and 1 (1.0), with erased symbols at 0.0.
30 *
31 * The output is MSB first packed bytes of decoded values.
32 *
33 * As a rate 1/2 code, there will be one output byte for every 16 input symbols.
34 *
35 * This block is designed for continuous data streaming, not packetized data.
36 * The first 32 bits out will be zeroes, with the output delayed four bytes
37 * from the corresponding inputs.
38 */
39
40 class FEC_API decode_ccsds_27_fb : virtual public sync_decimator
41{
42public:
43 // gr::fec::decode_ccsds_27_fb::sptr
44 typedef std::shared_ptr<decode_ccsds_27_fb> sptr;
45
46 static sptr make();
47};
48
49} /* namespace fec */
50} /* namespace gr */
51
52#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::sync_decimator
sync_decimator(void)
Definition sync_decimator.h:31
api.h
FEC_API
#define FEC_API
Definition gr-fec/include/gnuradio/fec/api.h:18
gr::fec
Definition async_decoder.h:20
gr
GNU Radio logging wrapper.
Definition basic_block.h:29
sync_decimator.h