NDLI: Variable-size elements in 2D sparse arrays for 3D medical ultrasound

Content Provider	IEEE Xplore Digital Library
Author	Diarra, B. Robini, M. Liebgott, H. Cachard, C. Tortoli, P.
Copyright Year	2013
Description	Author affiliation: CREATIS, Univ. de Lyon, Villeurbanne, France (Diarra, B.; Robini, M.; Liebgott, H.; Cachard, C.) \|\| Inf. Eng. Dept., Univ. degli Studi di Firenze, Florence, Italy (Tortoli, P.)
Abstract	The sparse array technique is an excellent approach to tackle the connection difficulties due to the huge number of elements of 2D matrix arrays. However, the reduction of the element number leads to significant performance reduction, especially in terms of energy loss. An efficient alternative to increase the array sensitivity is using elements wider than λ/2 while non-grid positioning strategies are adopted. To further decrease the unwanted lobes of the array beam, the variable-size elements array is proposed. This new configuration, combining the randomness of elements position and of their size, leads to excellent beam patterns. In addition, the main lobe width can be controlled to change the array spatial resolution.
Sponsorship	IEEE Ultrason., Ferroelectr., Freq. Control Society
Starting Page	508
Ending Page	511
File Size	502633
Page Count	4
File Format	PDF
ISSN	19485719
e-ISBN	9781467356862
DOI	10.1109/ULTSYM.2013.0132
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-21
Publisher Place	Czech Republic
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ultrasonic imaging Standards Finite element analysis Acoustics Imaging Gratings Simulated annealing simulated annealing ultrasound imaging 2D array non-grid sparse array
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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