In this invention, the method of blind system identification (BSI), which was developed to address distortion in wireless telephone communications, is applied to ultrasonic imaging. BSI is used first to estimate the effective filtering done by the tissue inhomogeneities and then to create corresponding filters to compensate for the aberration on both transmission and reception. In order to apply the BSI compensation technique, a two-dimensional array of imaging transducers is desired (a “1.75-d” array is acceptable), and a considerable amount of computation must be performed. Thus, the technology is applicable primarily for high end imaging systems.
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blind system identification
wireless telephone communications
bsi compensation technique