Title :
Adaptive digital beamforming for phased array ultrasound imaging [medical US imaging]
Author :
Karaman, M. ; Atalar, A. ; Köymen, H.
Author_Institution :
Dept. of Electr. & Electron. Eng., Bilkent Univ., Ankara, Turkey
Abstract :
A phase aberration correction technique with low computational complexity is proposed. The technique is based on the minimization of the sum of absolute differences between the sampled echo signals received by the adjacent array elements. It can be successfully applied for correction of aberration patterns in the presence of point reflector and random scatterers. A set of algorithms for the application of the correction technique is investigated. The simulation results for the performance analysis of these algorithms are presented
Keywords :
acoustic imaging; biomedical ultrasonics; absolution differences sum minimization; adaptive digital beamforming; adjacent array elements; algorithms; low computational complexity; medical US imaging; performance analysis; phase aberration correction technique; phased array ultrasound imaging; point reflector; random scatterers; sampled echo signals; Adaptive arrays; Array signal processing; Biomedical imaging; Computational complexity; Delay effects; Delay estimation; Phase estimation; Phased arrays; Scattering; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 1991. Proceedings., IEEE 1991
Conference_Location :
Orlando, FL
DOI :
10.1109/ULTSYM.1991.234306
