ULTRASOUND SYSTEM AND METHOD FOR ADAPTIVELY COMPENSATING SPECTRAL DOWNSHIFT OF SIGNALS

摘要

An ultrasound system and method for adaptively compensating for spectral downshift of a signal is disclosed. The ultrasound system includes an ultrasound probe and a processor. The ultrasound probe transmits an ultrasound signal to the object and receives an ultrasound echo signal from the object. The processor forms a complex baseband signal comprising the same phase component signal and a quadrature phase component signal based on the ultrasonic echo signal, determines the phase shift and phase dispersion based on the complex baseband signal, and determines the phase shift and phase dispersion. The demodulated baseband signal is filtered by a dynamic filter to adaptively compensate for the spectral downshift of the ultrasonic echo signal.