gr::fec::code::repetition_decoder Class Reference

Repetition Decoding class. More...

#include <gnuradio/fec/repetition_decoder.h>

Public Member Functions
virtual bool	set_frame_size (unsigned int frame_size)=0
virtual double	rate ()=0
Public Member Functions inherited from gr::fec::generic_decoder
virtual void	generic_work (void *inbuffer, void *outbuffer)=0
int	unique_id ()
std::string	alias ()
	generic_decoder (void)
	generic_decoder (std::string name)
virtual	~generic_decoder ()
virtual int	get_input_size ()=0
virtual int	get_output_size ()=0
virtual int	get_history ()
virtual float	get_shift ()
virtual int	get_input_item_size ()
virtual int	get_output_item_size ()
virtual const char *	get_input_conversion ()
virtual const char *	get_output_conversion ()

Static Public Member Functions
static generic_decoder::sptr	make (int frame_size, int rep, float ap_prob=0.5)

Additional Inherited Members
Public Types inherited from gr::fec::generic_decoder
typedef boost::shared_ptr < generic_decoder >	sptr
Public Attributes inherited from gr::fec::generic_decoder
int	my_id
std::string	d_name
Static Public Attributes inherited from gr::fec::generic_decoder
static int	base_unique_id
Protected Attributes inherited from gr::fec::generic_decoder
gr::logger_ptr	d_logger

Detailed Description

Repetition Decoding class.

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.

Member Function Documentation

static generic_decoder::sptr gr::fec::code::repetition_decoder::make ( int  frame_size, int  rep, float  ap_prob = 0.5  )

static

Build a repetition decoding FEC API object.

Parameters

frame_size	Number of bits per frame. If using in the tagged stream style, this is the maximum allowable number of bits per frame.
rep	Repetition rate; encoder rate is rep bits out for each input bit.
ap_prob	The a priori probability that a bit is a 1 (generally, unless otherwise known, assume to be 0.5).

virtual double gr::fec::code::repetition_decoder::rate ( )

pure virtual

Returns the coding rate of this encoder (it will always be 1).

Implements gr::fec::generic_decoder.

virtual bool gr::fec::code::repetition_decoder::set_frame_size ( unsigned int  frame_size )

pure virtual

Sets the uncoded frame size to frame_size. If frame_size is greater than the value given to the constructor, the frame size will be capped by that initial value and this function will return false. Otherwise, it returns true.

Implements gr::fec::generic_decoder.

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The documentation for this class was generated from the following file:

• repetition_decoder.h