# Difference between revisions of "Repetition Decoder Definition"

From GNU Radio

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[[Category:Block Docs]] | [[Category:Block Docs]] | ||

− | + | A repetition decoder class. This takes a majority vote, biased by the ap_prob rate, and decides if the number of 1 bits > ap_prob, it is a 1; else, it is a 0. | |

− | |||

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== Parameters == | == Parameters == | ||

; Parallelism | ; Parallelism | ||

− | : | + | : |

; Dimension 1 | ; Dimension 1 | ||

− | : | + | : For paralelism |

; Dimension 2 | ; Dimension 2 | ||

− | : | + | : For paralelism |

; Frame Bits | ; Frame Bits | ||

− | : | + | : Number of bits per frame. If using in the tagged stream style, this is the maximum allowable number of bits per frame |

; Repetitions | ; Repetitions | ||

− | : | + | : Repetition rate; encoder rate is rep bits out for each input bit. |

; a prior prob | ; a prior prob | ||

− | : | + | : The a priori probability that a bit is a 1 (generally, unless otherwise known, assume to be 0.5). |

== Example Flowgraph == | == Example Flowgraph == | ||

Line 32: | Line 29: | ||

; C++ files | ; C++ files | ||

− | : [https://github.com/gnuradio/gnuradio | + | : [https://github.com/gnuradio/gnuradio/blob/master/gr-fec/lib/repetition_decoder_impl.cc] |

; Header files | ; Header files | ||

− | : [https://github.com/gnuradio/gnuradio | + | : [https://github.com/gnuradio/gnuradio/blob/master/gr-fec/lib/repetition_decoder_impl.h] |

; Public header files | ; Public header files | ||

− | : [https://github.com/gnuradio/gnuradio | + | : [https://github.com/gnuradio/gnuradio/blob/master/gr-fec/include/gnuradio/fec/repetition_decoder.h] |

; Block definition | ; Block definition | ||

: [https://github.com/gnuradio/gnuradio/blob/master/gr-fec/grc/variable_repetition_decoder_def_list.block.yml] | : [https://github.com/gnuradio/gnuradio/blob/master/gr-fec/grc/variable_repetition_decoder_def_list.block.yml] |

## Latest revision as of 09:16, 12 September 2019

A repetition decoder class. This takes a majority vote, biased by the ap_prob rate, and decides if the number of 1 bits > ap_prob, it is a 1; else, it is a 0.

## Parameters

- Parallelism

- Dimension 1
- For paralelism

- Dimension 2
- For paralelism

- Frame Bits
- Number of bits per frame. If using in the tagged stream style, this is the maximum allowable number of bits per frame

- Repetitions
- Repetition rate; encoder rate is rep bits out for each input bit.

- a prior prob
- The a priori probability that a bit is a 1 (generally, unless otherwise known, assume to be 0.5).

## Example Flowgraph

Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI. Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.

## Source Files

- C++ files
- [1]

- Header files
- [2]

- Public header files
- [3]

- Block definition
- [4]