Sweep Class Reference

Sweep signal. More...

#include <lasp_siggen_impl.h>

Inheritance diagram for Sweep:

Collaboration diagram for Sweep:

Public Member Functions
	Sweep (const d fl, const d fu, const d Ts, const d Tq, const us sweep_flags)
	~Sweep ()=default
Public Member Functions inherited from Periodic
vd	getSequence () const
	Return copy of the generated sequence.
virtual vd	genSignalUnscaled (const us nframes) override final
	~Periodic ()=default
Public Member Functions inherited from Siggen
virtual	~Siggen ()=default
void	setFilter (const std::string &name, std::shared_ptr< Filter > f)
	Set a filter on the signal. For example to EQ the signal, or otherwise to shape the spectrum. Filters are stored in a map, and setFilter can be used to overwrite them, if a null pointer is given.
void	setDCOffset (d offset)
	Set a linear DC offset value to the signal.
void	setMute (bool mute=true)
	Mute the signal. Passes through the DC offset. No lock is hold. If it just works one block later, than that is just the case.
void	setLevel (const d level, bool dB=true)
	Set the level of the signal generator.
void	reset (const d newFs)
	Reset the signal generator. Should be called whenever the output is based on a different sampling frequency. Note that derived classes from this class should call the base class!
vd	genSignal (const us nframes)
	Called whenever the implementation needs to create new samples.

Static Public Attributes
static constexpr int	ForwardSweep = 1 << 0
static constexpr int	BackwardSweep = 1 << 1
static constexpr int	LinearSweep = 1 << 2
static constexpr int	LogSweep = 1 << 3

Additional Inherited Members
Protected Attributes inherited from Periodic
vd	_signal { 1, arma::fill::zeros}
us	_cur_pos = 0
Protected Attributes inherited from Siggen
std::mutex	_mtx
d	_fs = 0

Detailed Description

Sweep signal.

Definition at line 82 of file lasp_siggen_impl.h.

Constructor & Destructor Documentation

Sweep()

Sweep::Sweep	(	const d	fl,
		const d	fu,
		const d	Ts,
		const d	Tq,
		const us	sweep_flags
	)

Create a sweep signal

Parameters

[in]	fl	Lower frequency [Hz]
[in]	fu	Upper frequency [Hz]
[in]	Ts	Sweep time [s]
[in]	Tq	Quescent tail time [s]. Choose this value long enough to avoid temporal aliasing in case of measuring impulse responses.
[in]	sweep_flags	Sweep period [s]

Definition at line 57 of file lasp_siggen_impl.cpp.

~Sweep()

Sweep::~Sweep ( )

default

Member Data Documentation

BackwardSweep

constexpr int Sweep::BackwardSweep = 1 << 1

staticconstexpr

Definition at line 92 of file lasp_siggen_impl.h.

ForwardSweep

constexpr int Sweep::ForwardSweep = 1 << 0

staticconstexpr

Definition at line 91 of file lasp_siggen_impl.h.

LinearSweep

constexpr int Sweep::LinearSweep = 1 << 2

staticconstexpr

Definition at line 93 of file lasp_siggen_impl.h.

LogSweep

constexpr int Sweep::LogSweep = 1 << 3

staticconstexpr

Definition at line 94 of file lasp_siggen_impl.h.

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

• src/lasp/dsp/lasp_siggen_impl.h
• src/lasp/dsp/lasp_siggen_impl.cpp