Method for determining a physical characteristic on a punctual location inside a medium, a method for determining an image of a medium, and an apparatus implementing said methods

摘要

The method of the invention determines a physical characteristic on a punctual location inside a medium, and includes including the steps of sending an emitted sequence having emitted pulses that have different amplitudes, receiving a received sequence having received pulses corresponding to echoes of the emitted pulses, calculating a phase difference between the received pulses relative to the emitted pulses, and determining the physical characteristic on the punctual location on the bases of said the phase difference.