Ultrasound diagnosis apparatus and ultrasound signal generating method

An ultrasound diagnosis apparatus, comprising:

• an ultrasound probe, and
• processing circuitry that
• collects a first ultrasound signal including one or more harmonic components based on received signals based on reflected waves from a subject, the received signals being received by the ultrasound probe;
• and
• by executing weighed addition processing where a coefficient distribution is applied to the first ultrasound signal for different directions of two or more dimensions, generates a second ultrasound signal including components of each order at a ratio different, at a specific frequency, from a ratio among frequency components included in the first ultrasound signal,
• wherein the processing circuitry further
• collects, as the first ultrasound signal, an ultrasound signal in which a harmonic component of either an odd order or even order is enhanced relative to a harmonic component of an other order, and
• generates, as the second ultrasound signal, by executing the weighted addition processing on the first ultrasonic signal, a harmonic signal in which a harmonic component of a predetermined multiple order in the first ultrasound signal is enhanced more than a harmonic component of other orders in the first ultrasound signal.