itpp::BERC Class Reference

Bit Error Rate Counter (BERC) Class. More...

#include <itpp/comm/error_counters.h>

Public Member Functions
	BERC (int indelay=0, int inignorefirst=0, int inignorelast=0)
	Constructor for the berc class.
void	count (const bvec &in1, const bvec &in2)
	Cumulative error counter.
void	count (const bool x)
	Variant of the cumulative error counter. Counts a bit error if x is true, and a correct bit otherwise.
void	estimate_delay (const bvec &in1, const bvec &in2, int mindelay=-100, int maxdelay=100)
	Run this member function if the delay between in1 and in2 is unknown.
void	clear ()
	Clears the bit error counter.
void	report () const
	Writes an error report.
int	get_delay () const
	Return the delay, assumed or estimated, between in1 and in2.
double	get_errors () const
	Returns the counted number of bit errors.
double	get_corrects () const
	Returns the counted number of corectly received bits.
double	get_total_bits () const
	Returns the total number of bits processed.
double	get_errorrate () const
	Returns the estimated bit error rate.

Static Public Member Functions
static double	count_errors (const bvec &in1, const bvec &in2, int indelay=0, int inignorefirst=0, int inignorelast=0)
	static function to allow simple and fast count of bit-errors

Detailed Description

Bit Error Rate Counter (BERC) Class.

Example:

#include <itpp/itcomm.h>

int main() {
  //Initiate the Bit Error Counter
  BERC berc;

  //Initiate a Binary Symetric Channel with cross-over probability 0.1
  BSC binary_symetric_channel(0.1);

  bvec transmitted_bits = randb(100);
  bvec received_bits = binary_symetric_channel(transmitted_bits);

  //Count the number of bit errors
  berc.count(transmitted_bits, received_bits);

  cout << "Estimated bit error probability is " << berc.get_errorrate()
       << endl;

  return 0;
}

Definition at line 67 of file error_counters.h.

Constructor & Destructor Documentation

itpp::BERC::BERC	(	int	indelay = 0,
		int	inignorefirst = 0,
		int	inignorelast = 0
	)

Constructor for the berc class.

• delay is positive if in2 is a delayed replica of in1 and negative otherwise.
• ignorefirst and ignorelast may be used if errors in the begining and/or the end is to be ignored.

Definition at line 45 of file error_counters.cpp.

Member Function Documentation

double itpp::BERC::count_errors ( const bvec &  in1, const bvec &  in2, int  indelay = 0, int  inignorefirst = 0, int  inignorelast = 0  )

static

static function to allow simple and fast count of bit-errors

Returns the number of errors between in1 and in2. Typical usage:

bvec in1 = randb(100);
bvec in2 = randb(100);
double errors = BERC::count_errors(in1, in2);

Definition at line 127 of file error_counters.cpp.

References itpp::abs(), and itpp::min().

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

• itpp/comm/error_counters.h
• itpp/comm/error_counters.cpp