SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, RECORDING MEDIUM, AND PROGRAM

摘要

This technology relates to a signal processing device, a signal processing method, a recording medium, and a program capable of enabling appropriate beam forming with a simple configuration even when a positional relationship between a plurality of transducers included in a probe of an ultrasonic diagnostic device is not fixed.;A reception BF unit calculates a phase difference indicating a relative positional shift between a plurality of transducers based on a difference between each phase difference of a signal of a reflective wave in each of a plurality of transducers of an ultrasonic wave transmitted from a transducer being a transmission target out of a plurality of transducers, relative positions of which are not fixed, and each known phase difference of the signal of the reflective wave in a plurality of transducers in a case in which an arrangement of a plurality of transducers is a reference arrangement. A delay calculating unit calculates a delay amount of each of a plurality of transducers used in the beam forming based on the phase difference calculated by a phase difference calculating unit. This technology may be applied to an ultrasonic diagnostic device.

主权项

1. A signal processing device comprising:
a phase difference calculating unit which calculates a phase difference indicating a relative positional shift between a plurality of transducers based on a difference between each phase difference of a signal of a reflective wave in each of the plurality of transducers of an ultrasonic wave transmitted from a transducer being a transmission target out of the plurality of transducers, relative positions of which are not fixed, and each known phase difference of the signal of the reflective wave in each of the plurality of transducers when an arrangement of the plurality of transducers is supposed to be a reference arrangement; and a delay calculating unit which calculates a delay amount of each of the plurality of transducers used in beam forming based on the phase difference calculated by the phase difference calculating unit.