DISPOSITIF D'OBSERVATION ULTRASONORE, PROCÉDÉ DE FONCTIONNEMENT POUR DISPOSITIF D'OBSERVATION ULTRASONORE, ET PROGRAMME DE FONCTIONNEMENT POUR DISPOSITIF D'OBSERVATION ULTRASONORE
In the present invention, provided are the following: a frequency analysis unit that analyzes the frequency of an electrical echo-signal received from an ultrasonic probe, and thereby calculates the frequency spectrum of the echo signal； a band setting unit that sets a characteristic amount calculation-use frequency band in accordance with a transmission drive wave, such frequency band used when calculating the characteristic amount of the frequency spectrum； an intensity correction unit that calculates a corrected frequency spectrum by correcting, using a correction amount determined in accordance with the transmission drive wave, the intensity of the frequency spectrum in the characteristic amount calculation-use frequency band set by the band setting unit； and an approximation unit that extracts the characteristic amount of the corrected frequency spectrum by performing approximation, using the characteristic amount calculation-use frequency band, on the corrected frequency spectrum calculated by the intensity correction unit. Due to this configuration, provided are an ultrasonic observation device, an operation method for the ultrasonic observation device, and an operation program for the ultrasonic observation device, which enable the characteristic amount of the frequency spectrum corresponding to an ultrasonic wave which has been received to be maintained at a constant level, regardless of the characteristics of the ultrasonic waves being transmitted.Dans la présente invention, l'invention comporte les éléments suivants : une unité d'analyse de fréquence qui analyse la fréquence d'un signal d'écho électrique reçu en provenance d'une sonde ultrasonore et, de ce fait, calcule le spectre de fréquence du signal d'écho ； une unité de réglage de bande qui règle une bande de fréquence d'utilisation de calcul de quantité caractéristique en fonction d'une onde d'entraînement de transmission, telle qu'une bande de fréquence utilisée lors du calcul de la quantité caract
