Gpfksimulator - Revision history

Mao: /* Usage */

2010-03-12T09:56:49Z

Usage

Mao: /* Usage */

2010-03-12T09:45:36Z

Usage

Mao: /* Usage */

2010-03-12T09:33:27Z

Usage

Mao: /* Usage */

2010-03-12T09:22:56Z

Usage

Mao: /* Usage */

2010-03-12T09:13:40Z

Usage

Mao: /* Usage */

2010-03-12T09:12:15Z

Usage

Mao: /* Usage */

2010-03-11T16:01:42Z

Usage

Mao: New page: == Interest == gpfksimulator is intended to be an educational tool. It is a graphical interface displaying the array response function for a superposition of multiple plane waves cro...

2010-03-11T14:10:23Z

New page: == Interest == gpfksimulator is intended to be an educational tool. It is a graphical interface displaying the array response function for a superposition of multiple plane waves cro...

New page

== Interest ==

[[gpfksimulator]] is intended to be an educational tool. It is a graphical interface displaying the array response function
for a superposition of multiple plane waves crossing some given array geometry.

== Usage ==

[[Image:GPFKSimulator.png|thumb|left|700px|gpfksimulator after startup]]

@@ Line 41: / Line 41: @@
 the last spin box '''FK Grid size'''. It will modify the transparent layer shadowing the parts of the wavenumber map
 exceeding this limit.
 You can now add a second plane wave by pushing the '''Add''' button. A new table row will appear copying the
 properties of the first signal. As above, you may edit any column to change signal properties of this second signal.
@@ Line 47: / Line 50: @@
 and observe the effects of superposition of multiple plane waves on the array response function. For better identification
 of the individual plane waves each signal will be attached a circle with the original wave speed expressed in wavenumber.

@@ Line 30: / Line 30: @@
 For mimicking plane wave arrivals the distance parameter should be set to at least 3 times the array radius
-(see [http://sesame-fp5.obs.ujf-grenoble.fr/delivrables|Sesame report D19.06 and D24.13]. Note that there is an option
+(see [http://sesame-fp5.obs.ujf-grenoble.fr/delivrables Sesame reports D19.06 and D24.13]. Note that there is an option
 to specify damping via the spin box for the '''Attenuation factor (Q)'''. For a single plane wave will
 not expect any influence of this parameter except for very large array settings and very low Q-values.
@@ Line 44: / Line 44: @@
 You can now add a second plane wave by pushing the '''Add''' button. A new table row will appear copying the
 properties of the first signal. As above, you may edit any column to change signal properties of this second signal.

@@ Line 17: / Line 17: @@
 a plane wave with parameters as given in the first table line. On default, a harmonic signal propagating at a
 wave speed of 300 m/s at a signal frequency of 1 Hz and a propagation
-direction of <math>0^\circ</math>.
+direction of <math>0^\circ</math>. Note that a black circle will overlaid to the wavenumber map similar to
 You can edit any entry in the table row to change the
@@ Line 29: / Line 31: @@
 For mimicking plane wave arrivals the distance parameter should be set to at least 3 times the array radius
 (see [http://sesame-fp5.obs.ujf-grenoble.fr/delivrables|Sesame report D19.06 and D24.13]. Note that there is an option
-to specify damping via the spin box for the '''Attenuation factor (Q)'''. For a single plane wave you might expect some
+to specify damping via the spin box for the '''Attenuation factor (Q)'''. For a single plane wave will
-changes in the array response for very low Q-values.
+not expect any influence of this parameter except for very large array settings and very low Q-values.
 You can now add a second plane wave by pushing the '''Add''' button. A new table row will appear copying the
 properties of the first signal. As above, you may edit any column to change signal properties of this second signal.

@@ Line 7: / Line 7: @@
 [[Image:GPFKSimulator.png|thumb|left|700px|gpfksimulator after startup]]
-When starting [[gpfksimulator]] a file borwser will and you are requested to locate
+When starting [[gpfksimulator]] a file browser will open and you are requested to locate
 a [[SciFigs: Multi-column Parser|multi-column ASCII]] file containing position
 coordinates of an array setting. As described in
 [[Warangps#Loading_coordinates|warangps section on loading coordinates]] a flexible parser
-will allow you to adjust to many different ASCII file formats.
+will allow you to adjust to you own ASCII file formats.
 As in [[warangps]], the array response function will be immediately computed and displayed, however, this time not for
-a vertical incident plane wave (impinging on the array configuration from below with <math>\vec{k} = 0</math>), but for
+a vertically incident plane wave (impinging on the array configuration from below with <math>\vec{k} = 0</math>), but for
-a plane wave with parameters as given in the first table line.
+a plane wave with parameters as given in the first table line. On default, a harmonic signal propagating at a
-On default, a harmonic signal propagating at a wave speed of 300 m/s at a signal frequency of 1 Hz and a propagation
+wave speed of 300 m/s at a signal frequency of 1 Hz and a propagation
 direction of <math>0^\circ</math>.
@@ Line 23: / Line 23: @@
 when changing the azimuth of propagation and distance, the X and Y columns will change accordingly.
 X and Y specify the source location with respect to the array center. Units are degrees for angles and meters for
-distance, m/s for velocities.
+distance, m/s for velocities. Amplitude and phase of the harmonic function can be changed, but will have no effect
 You can now add a second plane wave by pushing the '''Add''' button. A new table row will appear copying the
 properties of the first signal. As above, you may edit any column to change signal properties of this second signal.

@@ Line 17: / Line 17: @@
 a plane wave with parameters as given in the first table line.
 On default, a harmonic signal propagating at a wave speed of 300 m/s at a signal frequency of 1 Hz and a propagation
-direction of <math>0^\circ</math>. You can edit any entry in the table row to change the
+direction of <math>0^\circ</math>.
 signal propagation properties like wave speed and direction of wave propagation. Note that
 when changing the azimuth of propagation and distance, the X and Y columns will change accordingly.

← Older revision		Revision as of 16:01, 11 March 2010
Line 7:		Line 7:

	[[Image:GPFKSimulator.png\|thumb\|left\|700px\|gpfksimulator after startup]]		[[Image:GPFKSimulator.png\|thumb\|left\|700px\|gpfksimulator after startup]]
		+	When starting [[gpfksimulator]] a file borwser will and you are requested to locate
		+	a [[SciFigs: Multi-column Parser\|multi-column ASCII]] file containing position
		+	coordinates of an array setting. As described in
		+	[[Warangps#Loading_coordinates\|warangps section on loading coordinates]] a flexible parser
		+	will allow you to adjust to many different ASCII file formats.
		+
		+	As in [[warangps]], the array response function will be immediately computed and displayed, however, this time not for
		+	a vertical incident plane wave (impinging on the array configuration from below with <math>\vec{k} = 0</math>), but for
		+	a plane wave with parameters as given in the first table line.
		+	On default, a harmonic signal propagating at a wave speed of 300 m/s at a signal frequency of 1 Hz and a propagation
		+	direction of <math>0^\circ</math>.