The primary interface to pulsar observational data. More...

#include <Archive.h>

Inheritance diagram for Archive:

Classes
class	Expert
	Provides access to private and protected member of Archive. More...
class	Extension
class	Interface
	Provides a text interface to get and set Archive attributes. More...
class	Match
	Policy used to determine if two archives match. More...

Public Member Functions
	Archive ()
	Default constructor.
	Archive (const Archive &archive)
	Copy constructor.
virtual	~Archive ()
	Destructor.
Archive &	operator= (const Archive &a)
	Assignment operator.
template<class T>
const T *	get () const
template<class T>
T *	get ()
template<class T>
T *	getadd ()
Copying and Cloning
The copy methods copy data from other Archive instances; the clone, extract, and total methods return pointers to new copy-constructed instances.
void	copy (const Archive &)
	Copy all base class attributes, Extensions, and Integrations.
void	copy (const Archive *)
	Copy all base class attributes, Extensions, and Integrations.
virtual Archive *	clone () const=0
	Return a new copy constructed instance equal to this.
Archive *	total (bool tscrunch=true) const
	Return pointer to a new fscrunched, tscrunched and pscrunched clone.
Archive *	tscrunched () const
	Return pointer to a new tscrunched clone.
Archive *	extract (std::vector< unsigned > &subints) const
	Return pointer to a new instance with only the specified subints.
Common Attributes
These pure virtual methods provide access to the common attributes stored by all derived classes.
virtual std::string	get_telescope () const=0
	Get the name of the telescope used.
virtual void	set_telescope (const std::string &code)=0
	Set the name of the telescope used.
virtual Signal::State	get_state () const=0
	Get the state of the profile data.
virtual void	set_state (Signal::State state)=0
	Set the state of the profile data.
virtual Signal::Scale	get_scale () const=0
	Get the scale in which flux density is measured.
virtual void	set_scale (Signal::Scale scale)=0
	Set the scale in which flux density is measured.
virtual Signal::Source	get_type () const=0
	Get the observation type (psr, cal)
virtual void	set_type (Signal::Source type)=0
	Set the observation type (psr, cal)
virtual std::string	get_source () const=0
	Get the source name.
virtual void	set_source (const std::string &source)=0
	Set the source name.
virtual sky_coord	get_coordinates () const=0
	Get the coordinates of the source.
virtual void	set_coordinates (const sky_coord &coordinates)=0
	Set the coordinates of the source.
virtual double	get_centre_frequency () const=0
	Get the centre frequency of the observation.
virtual void	set_centre_frequency (double cf)=0
	Set the centre frequency of the observation.
virtual double	get_bandwidth () const=0
	Get the overall bandwidth of the observation.
virtual void	set_bandwidth (double bw)=0
	Set the overall bandwidth of the observation.
virtual double	get_dispersion_measure () const=0
	Get the dispersion measure (in ${\rm pc\, cm}^{-3}$ )
virtual void	set_dispersion_measure (double dm)=0
	Set the dispersion measure (in ${\rm pc\, cm}^{-3}$ )
virtual bool	get_dedispersed () const=0
	Inter-channel dispersion delay has been removed.
virtual void	set_dedispersed (bool done=true)=0
	Set the value to be returned by get_dedispersed.
virtual double	get_rotation_measure () const=0
	Get the rotation measure (in ${\rm rad\, m}^{-2}$ )
virtual void	set_rotation_measure (double rm)=0
	Set the rotation measure (in ${\rm rad\, m}^{-2}$ )
virtual bool	get_faraday_corrected () const=0
	Data has been corrected for ISM faraday rotation.
virtual void	set_faraday_corrected (bool done=true)=0
	Set the value to be returned by get_ism_rm_corrected.
virtual bool	get_poln_calibrated () const=0
	Data has been calibrated for polarimetric response of instrument.
virtual void	set_poln_calibrated (bool done=true)=0
	Set the value to be returned by get_poln_calibrated.
Data Access
These methods provide access to the data contained in the Archive. Note that get_Integration is implemented by the IntegrationManager base class.
Profile *	get_Profile (unsigned subint, unsigned pol, unsigned chan)
	Return pointer to the specified profile.
const Profile *	get_Profile (unsigned subint, unsigned pol, unsigned chan) const
	Return pointer to the specified profile.
TEMPO Interface
These methods provide access to the pulsar ephemeris and predictor as used by TEMPO.
void	set_ephemeris (const Parameters *ephemeris, bool update=true)
	Install the given ephemeris and call update_model.
const Parameters *	get_ephemeris () const
	Return a pointer to the current archive ephemeris.
bool	has_ephemeris () const
	Return true if the Archive has an ephemeris.
void	set_model (const Predictor *model, bool apply=true)
	Install the given predictor and shift profiles to align.
const Predictor *	get_model () const
	Return a pointer to the current phase predictor.
bool	has_model () const
	Returns true if the Archive has a model.
void	update_model ()
	Create a new predictor and align the Integrations to the new model.
void	bscrunch (unsigned nscrunch)
	Integrate pulse profiles in phase.
void	fold (unsigned nfold)
	Integrate neighbouring sections of the pulse profiles.
void	pscrunch ()
	Integrate profiles in polarization.
void	fscrunch (unsigned nscrunch=0)
	Integrate profiles in frequency.
void	tscrunch (unsigned nscrunch=0)
	Integrate profiles in time.
void	rotate (double time)
	Phase rotate each profile by time seconds.
void	rotate_phase (double phase)
	Rotate each profile by phase.
void	append (const Archive *archive)
	Append the Integrations from the specifed archive.
void	remove_chan (unsigned first, unsigned last)
	Delete the specified inclusive channel range from the Archive.
void	update_centre_frequency ()
	Update the centre frequency.
void	centre (double phase_offset=0.5)
	Phase rotate pulsar Integrations so that pulse phase zero is centred.
void	centre_max_bin (double phase_offset=0.5)
	Phase rotate pulsar Integrations so centre the maximum amplitude.
void	convert_state (Signal::State state)
	Convert data to the specified state.
Signal::Basis	get_basis () const
	Convenience interface to Receiver::get_basis.
void	dedisperse ()
	Rotate the Profiles to remove dispersion delays b/w chans.
void	defaraday ()
	Correct the Faraday rotation of Q into U.
void	transform (const Jones< float > &)
	Perform the transformation on each polarimetric profile.
void	transform (const std::vector< Jones< float > > &)
	Perform frequency response on each polarimetric profile.
void	transform (const std::vector< std::vector< Jones< float > > > &)
	Perform the time and frequency response on each polarimetric profile.
void	invint ()
	Transform Stokes I,Q,U,V into the polarimetric invariant interval.
PhaseWeight *	baseline () const
	Return a new PhaseWeight instance with the baseline phase bins masked.
void	remove_baseline ()
	Remove the baseline from all profiles.
void	uniform_weight (float new_weight=1.0)
	Set the weight of each profile to the given number.
bool	standard_match (const Archive *arch, std::string &reason) const
	Test if arch matches (enough for a pulsar - standard match)
bool	calibrator_match (const Archive *arch, std::string &reason) const
	Test if arch matches (enough for a pulsar - calibrator match)
bool	processing_match (const Archive *arch, std::string &reason) const
	Test if arch matches (enough for a pulsar - pulsar match)
bool	mixable (const Archive *arch, std::string &reason) const
	Test if arch is mixable (enough for append)
double	weighted_frequency (unsigned ichan, unsigned start, unsigned end) const
	Computes the weighted channel frequency over an Integration interval.
void	bscrunch_to_nbin (unsigned new_nbin)
	Call bscrunch with the appropriate value.
void	fscrunch_to_nchan (unsigned new_nchan)
	Call fscrunch with the appropriate value.
void	tscrunch_to_nsub (unsigned new_nsub)
	Call tscrunch with the appropriate value.
MJD	start_time () const
	Return the MJD at the start of the first sub-integration.
MJD	end_time () const
	Return the MJD at the end of the last sub-integration.
double	integration_length () const
	Returns the total time integrated into all Integrations (in seconds)
bool	type_is_cal () const
	Return true if the observation is a calibrator.
void	find_transitions (int &hi2lo, int &lo2hi, int &buffer) const
	Find the transitions between high and low states in total intensity.
void	find_peak_edges (int &rise, int &fall) const
	Find the bins in which the total intensity exceeds a threshold.
float	find_max_phase () const
	Returns the centre phase of the region with maximum total intensity.
float	find_min_phase (float dc=0.15) const
	Returns the centre phase of the region with minimum total intensity.
float	rms_baseline (float dc=0.4)
	Returns geometric mean of baseline RMS for each Integration.
virtual Interface *	get_interface ()
	Return a text interface that can be used to access this instance.
Public Member Functions inherited from Pulsar::IntegrationManager
	IntegrationManager ()
	null constructor
	IntegrationManager (const IntegrationManager &archive)
	copy constructor
IntegrationManager &	operator= (const IntegrationManager &archive)
	operator =
virtual	~IntegrationManager ()
	destructor
Integration *	get_Integration (unsigned subint)
	Return pointer to the specified Integration.
Integration *	get_last_Integration ()
	Return a pointer to the last Integration.
Integration *	get_first_Integration ()
	Return a pointer to the first Integration.
const Integration *	get_Integration (unsigned subint) const
	Return const pointer to the specified Integration.
const Integration *	get_last_Integration () const
	Return a const pointer to the last Integration.
const Integration *	get_first_Integration () const
	Return a const pointer to the first Integration.
virtual Integration *	new_Integration (const Integration *copy=0)=0
	Construct new Integration instance.
virtual Integration *	use_Integration (Integration *use)=0
	Use the given Integration instance.
virtual unsigned	get_nsubint () const =0
	Get the number of sub-integrations stored in the file.
template<class StrictWeakOrdering>
void	sort (StrictWeakOrdering comp=temporal_order)
	Sort the Integrations according to the specified order.
void	shuffle ()
	Randomly rearrange the sub-integrations.
Expert *	expert ()
	Provide access to the expert 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

Static Public Member Functions
Factories
These factories return pointers to new instances of derived classes.
static Archive *	new_Archive (const std::string &class_name)
	Factory returns a null-constructed instance of the named class.
static Archive *	load (const std::string &name)
	Factory returns a new instance loaded from filename.
static unsigned	get_instance_count ()
	Returns the number of Archive instances currently in existence.
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 ()

Extension Interface
Derived classes can provide access to the additional information available in their associated file format through use of Extension classes.
static Functor< void(Archive *) >	remove_baseline_strategy
	The default baseline removal strategy.
class	Expert
	The default baseline removal strategy.
virtual unsigned	get_nextension () const
	Return the number of extensions available.
virtual const Extension *	get_extension (unsigned iextension) const
	Return a pointer to the specified extension.
virtual Extension *	get_extension (unsigned iextension)
	Return a pointer to the specified extension.
template<class ExtensionType>
bool	has () const
	Template method searches for an Extension of the specified type.
template<class ExtensionType>
const ExtensionType *	get () const
	Template method searches for an Extension of the specified type.
template<class ExtensionType>
ExtensionType *	get ()
	Template method searches for an Extension of the specified type.
template<class ExtensionType>
ExtensionType *	getadd ()
	Template method returns an Extension of the specified type.
virtual void	add_extension (Extension *extension)
	Add an Extension to the Archive instance.
Expert *	expert ()
	Provide access to the expert interface.
const Expert *	expert () const
	Provide access to the expert interface.
const Match *	get_standard_match () const
	Policy determines if a standard/template matches an observation.
void	set_standard_match (Match *)
	The default baseline removal strategy.
const Match *	get_calibrator_match () const
	Policy determines if a calibrator matches an observation.
void	set_calibrator_match (Match *)
	The default baseline removal strategy.
const Match *	get_processing_match () const
	Policy determines if data were processed identically.
void	set_processing_match (Match *)
	The default baseline removal strategy.
const Match *	get_mixable () const
	Policy determines if data can be combined/integrated.
void	set_mixable (Match *)
	The default baseline removal strategy.
StrategySet *	get_strategy () const
	Returns the strategy manager.
static void	agent_report ()
	Report on the status of the plugins.
static void	agent_list ()
	List the successfully loaded plugins.
static void	set_verbosity (unsigned level)
	Set the verbosity level (0 to 3)
static std::string	get_revision (const char *revision)
	Parses the revision number out of the CVS Revision string.

File I/O
These pure virtual methods must be defined by derived classes in order to handle loading and unloading data to and from specific file formats.
static Option< std::string >	unload_class
	Name of class to which data are converted if unload_file unimplemented.
static Option< bool >	unload_cull_predictor
	Default policy for culling predictor coefficients when unloading.
static Option< bool >	no_clobber
	Default policy for overwriting archive files.
std::string	unload_filename
	Name of file to which the archive will be written on call to unload()
virtual bool	can_unload () const=0
	Return true if the unload method is implemented.
void	unload (const char *filename=0) const
	Write the archive to filename.
void	unload (const std::string &filename) const
	Convenience interface to Archive::unload (const char*)
std::string	get_filename () const
	Get the name of the file to which the archive will be unloaded.
void	set_filename (const std::string &filename)
	Set the filename of the Archive.
void	update ()
	Update the current archive, saving current Integration data.
void	refresh ()
	Completely reload the archive, deleting all data.
virtual void	load_header (const char *filename)=0
	Load the header information from filename.
virtual Integration *	load_Integration (const char *filename, unsigned subint)=0
	Load the specified Integration from filename, returning new instance.
virtual void	unload_file (const char *filename) const=0
	Unload the Archive (header and Integration data) to filename.

Dimension Attributes
These pure virtual methods are used by the Archive class to set the dimension attributes stored by the derived classes.
Reference::To< Parameters >	ephemeris
	The pulsar ephemeris, as used by TEMPO.
Reference::To< Expert >	expert_interface
	Expert interface.
Reference::To< Interface >	text_interface
	Text interface.
Reference::To< Match >	standard_match_policy
	The pulsar ephemeris, as used by TEMPO.
Reference::To< Match >	calibrator_match_policy
	The pulsar ephemeris, as used by TEMPO.
Reference::To< Match >	processing_match_policy
	The pulsar ephemeris, as used by TEMPO.
Reference::To< Match >	mixable_policy
	The pulsar ephemeris, as used by TEMPO.
virtual unsigned	get_nbin () const=0
	Get the number of pulsar phase bins used.
virtual unsigned	get_nchan () const=0
	Get the number of frequency channels used.
virtual unsigned	get_npol () const=0
	Get the number of polarizations.
virtual void	resize (unsigned nsubint, unsigned npol=0, unsigned nchan=0, unsigned nbin=0)
	Resize the Integration vector with new_Integration instances.
virtual void	erase (unsigned isubint)
	Remove the specified sub-integration.
void	reverse_chan ()
	Reverse the order of frequency channels.
void	update_model (unsigned old_nsubint, bool clear_model=false)
	Update the predictor model and correct the Integration set.
void	update_model (const MJD &time, bool clear_model=false)
	Update the predictor to include the specifed MJD.
virtual void	set_nbin (unsigned numbins)=0
	Set the number of pulsar phase bins.
virtual void	set_nchan (unsigned numchan)=0
	Set the number of frequency channels.
virtual void	set_npol (unsigned numpol)=0
	Set the number of polarization measurements.
void	set_predictor (Predictor *model)
	Set the phase predictor attribute without any computation.
Integration *	use_Integration (Integration *)
	Return the given Integration ready for use.
void	init_Integration (Integration *subint, bool check_phase=false)
	Initialize an Integration to reflect Archive attributes.
void	resize_Integration (Integration *integration)
	Provide Integration::resize access to Archive-derived classes.
void	apply_model (Integration subint, const Predictor old=0)
	Apply the current model to the Integration.
void	create_updated_model (bool clear_model)
	Creates polynomials to span the Integration set.
bool	good_model (const Predictor *test_model) const
	Returns true if the given model spans the Integration set.
bool	zero_phase_aligned () const
	Return true if all Integration::zero_phase_aligned flags are set.

Additional Inherited Members
Static Public Attributes inherited from Pulsar::IntegrationManager
static unsigned	verbose = 0
	A verbosity flag that can be set for debugging purposes.
Protected Member Functions inherited from Pulsar::IntegrationManager
virtual void	set_nsubint (unsigned num_sub)=0
	Set the number of sub-integrations.
virtual void	_resize (unsigned nsubint, bool instances=true)
	Resize the Integration vector.
void	append (const IntegrationManager *more_subints)
	Append new_Integration copies of Integration objects to self.
void	manage (IntegrationManager *more_subints)
	Append use_Integration modifications of Integration objects to self.
void	manage (Integration *integration)
	Directly append the Integration instance (no copy)
void	insert (unsigned isubint, Integration *integration)
	Insert the Integration instance into the specified location.
void	unmanage (const Integration *)
	Remove the Integration instance.
void	unmanage (unsigned isubint)
	Remove the Integration at the specified index.
void	load_all ()
	Load all sub-integrations.
Protected Member Functions inherited from Reference::Able
Handle *	__reference (bool active) const
void	__dereference (bool auto_delete=true) const

Detailed Description

The primary interface to pulsar observational data.

This virtual base class implements the primary interface to pulsar observational data, including the pulse profiles, integrations, and all auxilliary data. All file I/O and various data reduction algorithms are accessed via this class.

Constructor & Destructor Documentation

◆ Archive()

Pulsar::Archive::Archive ( const Archive & archive )

Copy constructor.

The Archive copy constructor must never be called, call Archive::copy.

Member Function Documentation

◆ add_extension()

void Pulsar::Archive::add_extension ( Extension * ext )

virtual

Add an Extension to the Archive instance.

This method ensures that only one instance of the Extension type is stored in the Archive.

Derived classes need only define this method, as the non-const version implemented by the Archive base class simply calls this method.

◆ append()

void Pulsar::Archive::append ( const Archive * arch )

Append the Integrations from the specifed archive.

Add clones of the Integrations in arch to this.

◆ apply_model()

void Pulsar::Archive::apply_model	(	Integration *	subint,
		const Predictor *	old = 0 )

protected

Apply the current model to the Integration.

This method aligns the Integration to the current polyco, as stored in the model attribute. The Integration is rotated by the difference between the phase predicted by the current model and that predicted by the old model.

Parameters

old	the old polyco used to describe subint
subint	pointer to the Integration to be aligned to the current model

◆ bscrunch()

void Pulsar::Archive::bscrunch ( unsigned nscrunch )

Integrate pulse profiles in phase.

Simply calls Integration::bscrunch for each Integration

Parameters

nscrunch the number of phase bins to add together

◆ bscrunch_to_nbin()

void Pulsar::Archive::bscrunch_to_nbin ( unsigned new_nbin )

Call bscrunch with the appropriate value.

Useful wrapper for Archive::bscrunch

◆ centre()

void Pulsar::Archive::centre ( double phase_offset = 0.5 )

Phase rotate pulsar Integrations so that pulse phase zero is centred.

Uses the polyco model, as well as the centre frequency and mid-time of each Integration to determine the predicted pulse phase.

◆ centre_max_bin()

void Pulsar::Archive::centre_max_bin ( double phase_offset = 0.5 )

Phase rotate pulsar Integrations so centre the maximum amplitude.

Rotate pulsar Integrations so that the bin of largest amplitude is centred

◆ clone()

virtual Archive * Pulsar::Archive::clone ( ) const

pure virtual

Return a new copy constructed instance equal to this.

This pure virtual method must be implemented by derived classes

◆ convert_state()

void Pulsar::Archive::convert_state ( Signal::State state )

Convert data to the specified state.

Simply calls Integration::convert_state for each Integration

◆ create_updated_model()

void Pulsar::Archive::create_updated_model ( bool clear_model )

protected

Creates polynomials to span the Integration set.

The polyco need only describe the phase and period of every Integration. When the Integrations are separated by a large amount of time, the creation of a new polyco to completely span this time results in a huge polyco.dat and a huge waste of time.

Therefore, this method attempts to create the minimum set of polyco polynomials required to describe the data. If a match is not found in the current model, a single polynomial is created and appended to the current model.

Parameters

clear_model delete the current model after copying its attributes

◆ dedisperse()

void Pulsar::Archive::dedisperse ( )

Rotate the Profiles to remove dispersion delays b/w chans.

The dedisperse method removes the dispersive delay between each frequency channel and that of the reference frequency defined by get_centre_frequency.

◆ defaraday()

void Pulsar::Archive::defaraday ( )

Correct the Faraday rotation of Q into U.

The defaraday method corrects the Faraday rotation between each frequency channel and that of the reference frequency defined by get_centre_frequency.

Precondition: The Archive must contain full polarimetric data; The noise contribution to Stokes Q and U should have been removed.

◆ find_max_phase()

float Pulsar::Archive::find_max_phase ( ) const

Returns the centre phase of the region with maximum total intensity.

Calls Archive::total
Calls Profile::find_max_phase on the total intensity

◆ find_min_phase()

float Pulsar::Archive::find_min_phase ( float dc = 0.15 ) const

Returns the centre phase of the region with minimum total intensity.

Calls Archive::total
Calls Profile::find_min_phase on the total intensity

◆ find_peak_edges()

void Pulsar::Archive::find_peak_edges	(	int &	rise,
		int &	fall ) const

Find the bins in which the total intensity exceeds a threshold.

Calls Archive::total
Calls Profile::find_peak_edges on the total intensity

◆ find_transitions()

void Pulsar::Archive::find_transitions	(	int &	hi2lo,
		int &	lo2hi,
		int &	buf ) const

Find the transitions between high and low states in total intensity.

Calls Archive::total
Calls Profile::find_transitions on the total intensity

◆ fold()

void Pulsar::Archive::fold ( unsigned nfold )

Integrate neighbouring sections of the pulse profiles.

Parameters

nfold the number of sections to integrate

◆ fscrunch()

void Pulsar::Archive::fscrunch ( unsigned nscrunch = 0 )

Integrate profiles in frequency.

Simply calls Integration::fscrunch for each Integration

Parameters

nscrunch the number of frequency channels to add together

◆ fscrunch_to_nchan()

void Pulsar::Archive::fscrunch_to_nchan ( unsigned new_chan )

Call fscrunch with the appropriate value.

Useful wrapper for Archive::fscrunch

◆ get() [1/2]

template<class T>

T * Pulsar::Archive::get ( )

e.g. Archive* archive; MyExtension* ext = archive->get<MyExtension>();

◆ get() [2/2]

template<class T>

const T * Pulsar::Archive::get ( ) const

e.g. const Archive* archive; const MyExtension* ext = archive->get<MyExtension>();

◆ get_extension() [1/2]

Pulsar::Archive::Extension * Pulsar::Archive::get_extension ( unsigned iext )

virtual

Return a pointer to the specified extension.

Simply calls get_extension const

◆ get_extension() [2/2]

const Pulsar::Archive::Extension * Pulsar::Archive::get_extension ( unsigned iext ) const

virtual

Return a pointer to the specified extension.

Derived classes need only define this method, as the non-const version implemented by the Archive base class simply calls this method.

◆ get_Profile()

Pulsar::Profile * Pulsar::Archive::get_Profile	(	unsigned	sub,
		unsigned	pol,
		unsigned	chan )

Return pointer to the specified profile.

Return a pointer to the Profile.

Parameters

sub	the index of the requested Integration
pol	the index of the requested polarization
chan	the index of the requested frequency channel

Returns: pointer to Profile instance

◆ getadd()

template<class T>

T * Pulsar::Archive::getadd ( )

If the specified extension type T does not exist, an atempt is made to add it using add_extension. If this fails, NULL is returned.

◆ good_model()

bool Pulsar::Archive::good_model ( const Predictor * test_model ) const

protected

Returns true if the given model spans the Integration set.

This method tests if the given phase predictor applies to each Integration, returning false if an exception is thrown.

Parameters

test_model the Predictor to be tested

◆ has()

template<class T>

bool Pulsar::Archive::has ( ) const

Template method searches for an Extension of the specified type.

e.g. const Archive* archive; const MyExtension* ext = archive->get<MyExtension>();

◆ init_Integration()

void Pulsar::Archive::init_Integration	(	Integration *	subint,
		bool	check_phase = false )

protected

Initialize an Integration to reflect Archive attributes.

This should be performed after the integration is considered complete.

After an Integration has been loaded from disk, this method ensures that various internal book-keeping attributes are initialized.

◆ new_Archive()

Pulsar::Archive * Pulsar::Archive::new_Archive ( const std::string & class_name )

static

Factory returns a null-constructed instance of the named class.

Return a null-constructed instance of the derived class.

◆ operator=()

Pulsar::Archive & Pulsar::Archive::operator= ( const Archive & a )

Assignment operator.

operator =

◆ pscrunch()

void Pulsar::Archive::pscrunch ( )

Integrate profiles in polarization.

Simply calls Integration::pscrunch for each Integration

◆ resize()

void Pulsar::Archive::resize	(	unsigned	nsubint,
		unsigned	npol = 0,
		unsigned	nchan = 0,
		unsigned	nbin = 0 )

virtual

Resize the Integration vector with new_Integration instances.

If any current dimension is greater than that requested, the extra Profiles will be deleted and the dimension resized. If any current dimension is smaller than that requested, the dimension will be resized and new Profiles will be constructed. If one or more of the npol, nchan, or nbin arguments is set to zero, the dimension is left unchanged.

◆ rms_baseline()

float Pulsar::Archive::rms_baseline ( float baseline_width = 0.4 )

Returns geometric mean of baseline RMS for each Integration.

Returns the geometric mean of the rms of the baseline for the 0,0th profile in each Integration. MB Feb 2004.

◆ set_ephemeris()

void Pulsar::Archive::set_ephemeris	(	const Parameters *	new_ephemeris,
		bool	update = true )

Install the given ephemeris and call update_model.

Parameters

new_ephemeris	the ephemeris to be installed
update	create a new polyco for the new ephemeris

◆ set_filename()

void Pulsar::Archive::set_filename ( const std::string & filename )

inline

Set the filename of the Archive.

The filename is the name of the file to which the archive will be written on the next call to Archive::unload, if no arguments are given to the Archive::unload method.

◆ set_predictor()

void Pulsar::Archive::set_predictor ( Pulsar::Predictor * _model )

protected

Set the phase predictor attribute without any computation.

In Base/ it is not possible to call set_model(apply=false) because Archive::set_model is defined in More/

◆ set_verbosity()

void Pulsar::Archive::set_verbosity ( unsigned level )

static

Set the verbosity level (0 to 3)

note that Archive::verbose is IntegrationManager::verbose

◆ total()

Pulsar::Archive * Pulsar::Archive::total ( bool tscrunch = true ) const

Return pointer to a new fscrunched, tscrunched and pscrunched clone.

This method is primarily designed for use by the Archive::find_* methods.

◆ tscrunch()

void Pulsar::Archive::tscrunch ( unsigned nscrunch = 0 )

Integrate profiles in time.

Parameters

nscrunch number of neighbouring Integrations to add. If nscrunch == 0, then add all Integrations together

◆ tscrunch_to_nsub()

void Pulsar::Archive::tscrunch_to_nsub ( unsigned new_nsub )

Call tscrunch with the appropriate value.

Useful wrapper for Archive::tscrunch

◆ tscrunched()

Pulsar::Archive * Pulsar::Archive::tscrunched ( ) const

Return pointer to a new tscrunched clone.

This is more efficient than clone followed by tscrunch

◆ unload()

void Pulsar::Archive::unload ( const char * filename = 0 ) const

Write the archive to filename.

To protect data, especially when writing the output archive to a file of the same name as the input archive, this method unloads data to a temporary file before renaming the archive to the requested output file name. The temporary file will be written using a unique filename in the same path as the requested output file.

◆ update_model() [1/2]

void Pulsar::Archive::update_model ( )

Create a new predictor and align the Integrations to the new model.

This method should be called when the ephemeris attribute is modified. It may also be called when the tempo support files (e.g. leap.sec, ut1.dat) change.

◆ update_model() [2/2]

void Pulsar::Archive::update_model	(	unsigned	nsubint,
		bool	clear = false )

protected

Update the predictor model and correct the Integration set.

This method economizes on the number of times that the polyco is re-created and the Integrations are re-aligned to the model.

By setting the Integration::zero_phase_aligned attribute, each sub-integration is flagged as no longer in need of alignment.

If Integration::zero_phase_aligned is false, then the Integration is re-aligned to the new model (see Archive::apply_model).

Parameters

nsubint	the number of Integrations to correct
clear	if true, clear the current model

◆ weighted_frequency()

double Pulsar::Archive::weighted_frequency	(	unsigned	ichan,
		unsigned	start,
		unsigned	end ) const

Computes the weighted channel frequency over an Integration interval.

Returns: the new weighted centre frequency (in MHz, rounded to nearest kHz)

Parameters

ichan	the index of the requested frequency channel
start	the index of the first Integration to include in the mean
end	one more than the index of the last Integration

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

Archive.h
Archive.C
Archive_copy.C
Archive_correct.C
Archive_extract.C
Archive_init_Integration.C
Archive_load.C
Archive_load_Integration.C
Archive_match.C
Archive_remove_chan.C
Archive_resize.C
Archive_unload.C
Archive_update_centre_frequency.C
Archive_verbose.C
Archive_verify.C
ArchiveExtension.h
Agent_static.C
Archive_append.C
Archive_apply_model.C
Archive_baseline.C
Archive_bscrunch.C
Archive_centre.C
Archive_centre_max_bin.C
Archive_convert_state.C
Archive_dedisperse.C
Archive_defaraday.C
Archive_find.C
Archive_fold.C
Archive_fscrunch.C
Archive_good_model.C
Archive_invint.C
Archive_pscrunch.C
Archive_remove_baseline.C
Archive_rms_baseline.C
Archive_rotate.C
Archive_set_ephemeris.C
Archive_set_model.C
Archive_total.C
Archive_transform.C
Archive_tscrunch.C
Archive_tscrunched.C
Archive_update_history.C
Archive_update_model.C
Archive_weighted_frequency.C
StrategySet.C

Classes

Public Member Functions

Static Public Member Functions

Extension Interface

File I/O

Dimension Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Archive()

Member Function Documentation

◆ add_extension()

◆ append()

◆ apply_model()

◆ bscrunch()

◆ bscrunch_to_nbin()

◆ centre()

◆ centre_max_bin()

◆ clone()

◆ convert_state()

◆ create_updated_model()

◆ dedisperse()

◆ defaraday()

◆ find_max_phase()

◆ find_min_phase()

◆ find_peak_edges()

◆ find_transitions()

◆ fold()

◆ fscrunch()

◆ fscrunch_to_nchan()

◆ get() [1/2]

◆ get() [2/2]

◆ get_extension() [1/2]

◆ get_extension() [2/2]

◆ get_Profile()

◆ getadd()

◆ good_model()

◆ has()

◆ init_Integration()

◆ new_Archive()

◆ operator=()

◆ pscrunch()

◆ resize()

◆ rms_baseline()

◆ set_ephemeris()

◆ set_filename()

◆ set_predictor()

◆ set_verbosity()

◆ total()

◆ tscrunch()

◆ tscrunch_to_nsub()

◆ tscrunched()

◆ unload()

◆ update_model() [1/2]

◆ update_model() [2/2]

◆ weighted_frequency()