Mathematics and Spatial Impulse Response
Users’ guide for the Field II program
Release 3.20, November 19, 2010
Jørgen Arendt Jensen
May 6, 2011
Jørgen Arendt Jensen
May 6, 2011
Department of Electrical Engineering, Build. 349,
Technical University of Denmark
DK-2800 Lyngby, Denmark
E-mail: jaj@elektro.dtu.dk
Web: http://server.elektro.dtu.dk/www/jaj/field/
CONTENTS
1
Introduction
3
2
Program organization
5
3
Method of simulation
3.1 The spatial impulse response
3.2 Simulation . . . . . . . . .
3.3 Focusing and apodization .
3.4 Attenuation . . . . . . . . .
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4
Description of Matlab procedures
5.1 List of current procedures . . . . . .
5.2 Procedures for Field initialization . .
5.3 Procedures for transducer definition .
5.4 Procedures for element manipulation
5.5 Procedures for field calculation . . .
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Installation
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Examples
6.1 Phased array imaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Linear array imaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3 Flow data generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Bibliography
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Release 3.20, November 19, 2010
Jørgen Arendt Jensen
May 6, 2011
Jørgen Arendt Jensen
May 6, 2011
Department of Electrical Engineering, Build. 349,
Technical University of Denmark
DK-2800 Lyngby, Denmark
E-mail: jaj@elektro.dtu.dk
Web: http://server.elektro.dtu.dk/www/jaj/field/
CONTENTS
1
Introduction
3
2
Program organization
5
3
Method of simulation
3.1 The spatial impulse response
3.2 Simulation . . . . . . . . .
3.3 Focusing and apodization .
3.4 Attenuation . . . . . . . . .
.
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.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
4
Description of Matlab procedures
5.1 List of current procedures . . . . . .
5.2 Procedures for Field initialization . .
5.3 Procedures for transducer definition .
5.4 Procedures for element manipulation
5.5 Procedures for field calculation . . .
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Installation
5
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.
.
.
6
7
7
7
8
8
9
.
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.
.
11
11
13
17
45
50
Examples
6.1 Phased array imaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Linear array imaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3 Flow data generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
59
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61
64
Bibliography
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