gr::digital::mpsk_snr_est Class Reference

A parent class for SNR estimators, specifically for M-PSK signals in AWGN channels. More...

#include <gnuradio/digital/mpsk_snr_est.h>

Public Member Functions
	mpsk_snr_est (double alpha)
virtual	~mpsk_snr_est ()
double	alpha () const
	Get the running-average coefficient.
void	set_alpha (double alpha)
	Set the running-average coefficient.
virtual int	update (int noutput_items, const gr_complex *input)
	Update the current registers.
virtual double	snr ()
	Use the register values to compute a new estimate.
virtual double	signal ()
	Returns the signal power estimate.
virtual double	noise ()
	Returns the noise power estimate.

Protected Attributes
double	d_alpha
double	d_beta
double	d_signal
double	d_noise

Detailed Description

A parent class for SNR estimators, specifically for M-PSK signals in AWGN channels.

Constructor & Destructor Documentation

mpsk_snr_est()

gr::digital::mpsk_snr_est::mpsk_snr_est

(

double

alpha

)

Constructor

Parameters:

Parameters

alpha

the update rate of internal running average calculations.

~mpsk_snr_est()

virtual gr::digital::mpsk_snr_est::~mpsk_snr_est ( )

virtual

Member Function Documentation

alpha()

double gr::digital::mpsk_snr_est::alpha

(

)

const

Get the running-average coefficient.

noise()

virtual double gr::digital::mpsk_snr_est::noise ( )

virtual

Returns the noise power estimate.

set_alpha()

void gr::digital::mpsk_snr_est::set_alpha

(

double

alpha

)

Set the running-average coefficient.

signal()

virtual double gr::digital::mpsk_snr_est::signal ( )

virtual

Returns the signal power estimate.

snr()

virtual double gr::digital::mpsk_snr_est::snr ( )

virtual

Use the register values to compute a new estimate.

Reimplemented in gr::digital::mpsk_snr_est_simple, gr::digital::mpsk_snr_est_skew, gr::digital::mpsk_snr_est_m2m4, gr::digital::snr_est_m2m4, and gr::digital::mpsk_snr_est_svr.

update()

virtual int gr::digital::mpsk_snr_est::update ( int  noutput_items, const gr_complex *  input  )

virtual

Update the current registers.

Reimplemented in gr::digital::mpsk_snr_est_simple, gr::digital::mpsk_snr_est_skew, gr::digital::mpsk_snr_est_m2m4, gr::digital::snr_est_m2m4, and gr::digital::mpsk_snr_est_svr.

Member Data Documentation

d_alpha

double gr::digital::mpsk_snr_est::d_alpha

protected

d_beta

double gr::digital::mpsk_snr_est::d_beta

protected

d_noise

double gr::digital::mpsk_snr_est::d_noise

protected

d_signal

double gr::digital::mpsk_snr_est::d_signal

protected

---

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

• mpsk_snr_est.h