Abstract：
:The main challenge faced by 3D ultrasonic imaging with 2D array transducers is the large number of elements required to achieve an acceptable level of quality in the images. Therefore, the optimisation of the array layout, in order to reduce the number of active elements in the aperture, has been a research topic in the last years. Nowadays, array technology has made viable the production of 2D arrays with larger flexibility on elements size, shape and position, allowing to study other configurations different to the classical matrix organisation, such as circular, archimedes spiral or polygonal layout between others. In this work, the problem of designing an imaging system array with large apertures and a very limited number of active elements (N(e)=128 and N(e)=256) using the Fermat spiral layout has been studied. As summary, a general discussion about the most interesting cases is presented.
journal_name
Ultrasonicsjournal_title
Ultrasonicsauthors
Martínez-Graullera O,Martín CJ,Godoy G,Ullate LGdoi
10.1016/j.ultras.2009.09.010subject
Has Abstractpub_date
2010-02-01 00:00:00pages
280-9issue
2eissn
0041-624Xissn
1874-9968pii
S0041-624X(09)00111-5journal_volume
50pub_type
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