itpp::BERC Class Reference

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

#include <error_counters.h>

List of all members.

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	estimate_delay (const bvec &in1, const bvec &in2, int mindelay=-100, int maxdelay=100)
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

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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;
  }

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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.

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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);

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

void itpp::BERC::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.

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

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

• error_counters.h
• error_counters.cpp