Hard plane wave source imposed along the line $y=y_0$ parallel to the z axis. More...

#include <HardPlaneWaveSource.hpp>

Public Member Functions
	HardPlaneWaveSource ()
	HardPlaneWaveSource (const double incident_angle, const double y_coord, const double z_coord, const double freq, const double t_spread, const double s_spread)
	Create a plane wave source.
	HardPlaneWaveSource (const double incident_angle, const double y_coord, const double z_coord, const double freq, const unsigned nPeriods, const double s_spread)
	Create a plane wave source.
	HardPlaneWaveSource (const double incident_angle, const double y_coord, const double freq, const double t_spread)
	Create a plane wave source.
double	getSpatialWaveform (const double z) const
	Calculate the spatial waveform , where.
double	getTemporalWaveform (const double t, const double z, const double v_p) const
	Calculate the temporal waveform , where.
double	getFrequency ()

Public Attributes
double	theta
double	y_0
double	z_0
Function *	f_t
	Temporal waveform, .
Function *	g_z
	Spatial waveform, .
double	T
	Time span of the source.

Detailed Description

Hard plane wave source imposed along the line $y=y_0$ parallel to the z axis.

The acoustic pressure imposed along the this line is given by

$p(z, t) = f(t') g(z')$

where $t'$ and $z'$ denote the transform variables as functions of the real variables $t$ and $z$ , $f(t')$ denotes the temporal waveform and $g(z')$ denotes the spatial waveform,

Constructor & Destructor Documentation

HardPlaneWaveSource::HardPlaneWaveSource ( )

HardPlaneWaveSource::HardPlaneWaveSource	(	const double	incident_angle,
		const double	y_coord,
		const double	z_coord,
		const double	freq,
		const double	t_spread,
		const double	s_spread
	)

Create a plane wave source.

The temporal shape $f(t')$ is a GaussianModulatedSinusoid waveform with the carrier frequency being $f_c$ , the standard deviation being $\sigma_t$ and the mean being $5\sigma_t$ . The spatial shape $g(z')$ is a Gaussian waveform with the standard deviation being $\sigma_s$ and the mean being 0.

The time span of this plane wave source is $10\sigma_t$ .

Parameters

incident_angle	(rad) incident angle $\theta$
y_coord	anchor position
z_coord	anchor position
freq	carrier frequency
t_spread	temporal standard deviation $\sigma_t$
s_spread	spatial standard deviation $\sigma_s$

HardPlaneWaveSource::HardPlaneWaveSource	(	const double	incident_angle,
		const double	y_coord,
		const double	z_coord,
		const double	freq,
		const unsigned	nPeriods,
		const double	s_spread
	)

Create a plane wave source.

The temporal shape $f(t')$ is a ramp modulated Sinusoid waveform with the carrier frequency being $f_c$ . The first temporal peak appears after 3 periods. The spatial shape $g(z')$ is a Gaussian waveform with the stardard deviation being $\sigma_s$ and the mean being 0.

Parameters

incident_angle	(rad) incident angle $\theta$
y_coord	anchor position
z_coord	anchor position
freq	carrier frequency
nPeriods	number of periods of the Sinusoid waveform
s_spread	spatial spreading $\sigma_s$

HardPlaneWaveSource::HardPlaneWaveSource	(	const double	incident_angle,
		const double	y_coord,
		const double	freq,
		const double	t_spread
	)

Create a plane wave source.

The temporal shape $f(t')$ is a GaussianModulatedSinusoid waveform with the carrier frequency being $f_c$ , the standard deviation being $\sigma_t$ , and the mean being $5\sigma_t$ . The spatial shape is a constant.

The time span of this plane wave source is $10\sigma_t$ .

Parameters

incident_angle	(rad) incident angle $\theta$
y_coord	anchor position
freq	carrier frequency
t_spread	temporal standard deviation $\sigma_t$

Member Function Documentation

double HardPlaneWaveSource::getFrequency ( )

double HardPlaneWaveSource::getSpatialWaveform ( const double z ) const

Calculate the spatial waveform $g(z{'})$ , where.

$z{'} = (z-z_0)\cos(\frac{\pi}{2}-\theta)$

double HardPlaneWaveSource::getTemporalWaveform	(	const double	t,
		const double	z,
		const double	v_p
	)		const

Calculate the temporal waveform $f(t')$ , where.

$t' = t-\frac{(z-z_0)\sin(\frac{\pi}{2}-\theta)}{v_p}, 0\le t \le T$

Member Data Documentation

Function* HardPlaneWaveSource::f_t

Temporal waveform, $f(t)$ .

Function* HardPlaneWaveSource::g_z

Spatial waveform, $g(z)$ .

double HardPlaneWaveSource::T

Time span of the source.

double HardPlaneWaveSource::theta

double HardPlaneWaveSource::y_0

double HardPlaneWaveSource::z_0

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

include/HardPlaneWaveSource.hpp
src/HardPlaneWaveSource.cpp

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation