Identification of subharmonic in bubble oscillations using MIMO Volterra models

Analysis only in filter transfer function of Volterra systems is sufficient but maybe not faultless. For this paper the identification procedures of subharmonic oscillations of ultrasound contrast agent (UCA) is described and considered impulse response functions (IRFs). The method for system identification is based on multiple-input-multiple-output (MIMO) Volterra series representation. In this work identification of the MIMO method is the theme and analysis of impulse response is considered as the target on filtering subharmonic frequency for ultrasound imaging.