Systems and processing algorithms for ultrasound time-of-flight digitizer systems

Method for tracking a pressure the vibration for train a transmitter is receiver flight time measuring a distance OF the method and device for changing, at least two flight times of the synchronous criterion's pressure the pulse for the other is obtaining a setting satisfiedly presence measuring (20,22) identifying synchronous the operation state. Monitoring flight time measuring and other, for identifying and composed of multiple beforehand flight time measuring computations prediction flight time and phase difference at least two wave period's the flight time of shifting measuring (26). Is a shifting flight time measuring a distance D by the shifting the product correction of coefficient and pressure the wavelength.