Pulsar::LawnMower Class Reference

Removes broad-band impulsive spikes from pulse profiles. More...

#include <LawnMower.h>

Inheritance diagram for Pulsar::LawnMower:

Public Member Functions
	LawnMower ()
	Default constructor.
	~LawnMower ()
	Destructor.
void	set_threshold (float sigma)
	Set the threshold above which samples are mown.
void	set_baseline_estimator (BaselineEstimator *)
	Set the BaselineEstimator used to find the baseline.
BaselineEstimator *	get_baseline_estimator () const
Public Member Functions inherited from Pulsar::Mower
	Mower ()
	Default constructor.
virtual TextInterface::Parser *	get_interface ()
	Get the text interface to the mower attributes.
void	transform (Integration *)
	Set the Profile from which baseline PhaseWeight will be computed.
float	get_threshold () const
virtual void	set_median_smoothing (float turns)
	Set the size of the window used during median smoothing.
float	get_median_smoothing () const
virtual void	set_broadband (bool)
	If set, search for spikes in fscrunched (DM=0) total.
virtual void	set_prune (const PhaseWeight *prune_mask)
	If set, mow only the points flagged in the prune mask.
const PhaseWeight *	get_prune () const
virtual void	add_precondition (Functor< bool(Profile *, PhaseWeight *) >)
	One or more preconditions can be added.
Public Member Functions inherited from Pulsar::Transformation< Integration >
void	operator() (Integration *container)
	Functor interface.
Public Member Functions inherited from Reference::Able
	Able (const Able &)
Able &	operator= (const Able &)
unsigned	get_reference_count () const
Public Member Functions inherited from Reference::HeapTracked
	HeapTracked (const HeapTracked &)
HeapTracked &	operator= (const HeapTracked &)
bool	__is_on_heap () const

Protected Member Functions
void	compute (PhaseWeight *mask, const Profile *difference)
	Find the spikes in median smoothed difference and flag them in mask.
Protected Member Functions inherited from Pulsar::Mower
virtual bool	build_mask (Profile *profile)
	Create mask and return true if all preconditions are satisfied.
Protected Member Functions inherited from Reference::Able
Handle *	__reference (bool active) const
void	__dereference (bool auto_delete=true) const

Protected Attributes
Reference::To< OnPulseThreshold >	mower
	Masks all points above a threshold.
Reference::To< PhaseWeight >	include
	Points to be included in baseline estimator used by mower.
Protected Attributes inherited from Pulsar::Mower
Reference::To< PhaseWeight >	mowed
	Points to be mowed.
Reference::To< const PhaseWeight >	prune
	Specific points to be pruned.
float	median_smoothing_turns
	Size of median smoothing window in turns.
float	cutoff_threshold
	Cutoff threshold.
bool	broadband
	Search for spikes in fscrunch (DM=0) total.
std::vector< Functor< bool(Profile *, PhaseWeight *) > >	precondition
	Preconditions.

Additional Inherited Members
Static Public Member Functions inherited from Reference::Able
static size_t	get_instance_count ()
Static Public Member Functions inherited from Reference::HeapTracked
static void *	operator new (size_t size, void *ptr=0)
static void	operator delete (void *location, void *ptr)
static void	operator delete (void *location)
static size_t	get_heap_queue_size ()

Detailed Description

Removes broad-band impulsive spikes from pulse profiles.

This original version of the lawn mower algorithm makes use of various baseline estimators but is too sensitive to outliers. It is better to use the RobustMower class.

Member Function Documentation

compute()

void Pulsar::LawnMower::compute ( PhaseWeight * mask, const Profile * difference )

protectedvirtual

Find the spikes in median smoothed difference and flag them in mask.

Implements Pulsar::Mower.

References Pulsar::ProfileAmps::get_amps(), Pulsar::ProfileAmps::get_nbin(), include, and mower.

set_threshold()

void Pulsar::LawnMower::set_threshold ( float madm )

virtual

Set the threshold above which samples are mown.

Reimplemented from Pulsar::Mower.

References mower, and Pulsar::Mower::set_threshold().

Referenced by LawnMower().

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

• LawnMower.h
• LawnMower.C