Title :
Reduction of grating lobes in SAFT images
Author :
Martín, C.J. ; Martinez, O. ; Ullate, L.G. ; Octavio, A. ; Godoy, G.
Author_Institution :
Dept. Sist., IAI - CSIC, Madrid
Abstract :
In this work we present a new synthetic aperture technique, derived from the conventional SAFT, where only one element in emission and two in reception are used (2R-SAFT). This new technique suppresses the grating lobes of the conventional SAFT and allows obtaining images with a better contrast and signal-noise ratio, at the same time that minimizes the hardware requirements of the imaging systems and maintains a high frame rate.
Keywords :
diffraction gratings; ultrasonic focusing; SAFT images; grating lobe reduction; imaging systems; synthetic aperture; Apertures; Gratings; Hardware; Packaging; Pattern analysis; Phased arrays; Polynomials; Telecommunications; Ultrasonic imaging; Ultrasonic transducer arrays; 2D-SAFT; SAFT; coarray;
Conference_Titel :
Ultrasonics Symposium, 2008. IUS 2008. IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2428-3
Electronic_ISBN :
978-1-4244-2480-1
DOI :
10.1109/ULTSYM.2008.0172
