Title :
A high frequency ultrasound actuated synthetic-aperture array
Author :
Stitt, J.P. ; Tutwiler, Rick L. ; Ritter, T.A. ; Shung, K. Kirk
Author_Institution :
Appl. Res. Lab., Pennsylvania State Univ., University Park, PA, USA
Abstract :
An actuated synthetic-aperture array system is described that is capable of overcoming the technical difficulties in manufacturing an ultrasonic phased array in the 30 to 70 Mhz frequency range. The system is capable of generating images using a linear array of transducers which are of equal quality compared to a 64-element phased array while. The array was rapidly and precisely positioned with a piezoelectric actuator. The image was formed utilizing a synthetic aperture (SA) approach rather than electronic beamforming. The SA image was further refined by application of a deconvolution algorithm.
Keywords :
biomedical transducers; biomedical ultrasonics; deconvolution; image reconstruction; piezoelectric actuators; ultrasonic transducer arrays; 30 to 70 MHz; actuated synthetic-aperture array system; deconvolution algorithm; electronic beamforming; image generation; linear array of transducers; piezoelectric actuator; precisely positioned; ultrasonic phased array; Array signal processing; Frequency; Image generation; Manufacturing; Phased arrays; Piezoelectric actuators; Piezoelectric transducers; Ultrasonic imaging; Ultrasonic transducer arrays; Ultrasonic transducers;
Conference_Titel :
Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE
Print_ISBN :
0-7803-7789-3
DOI :
10.1109/IEMBS.2003.1279457
