Sonovum Ag

Adam Kolany

Miroslaw Wrobel

The invention relates to a phase detection method () comprising the following steps: receiving () a receiving sequence (Y) of values (Y, Y, . . . , Y) of a receiving signal (Y), said values (Y, Y, . . . , Y) having been sampled with a known sampling frequency fand said receiving signal (Y) representing a reaction to a transmitting signal having a known transmitting frequency f; providing () a sine sequence (S) and a cosine sequence (C) for each index (j) of the receiving sequence (Y), said sine sequence (S) comprising sine values of consecutive multiples of a known circular frequency, which depends on the transmitting frequency and the sampling frequency, and said cosine sequence (C) comprising cosine values of consecutive multiples of the known circular frequency; and determining () a phase real part (U) of the receiving signal (Y) based on a scalar product of the receiving sequence (Y) with the cosine sequence (C) and a phase imaginary part (V) of the receiving signal based on a scalar product of the receiving sequence (Y) with the sine sequence (S).

Phase detection method based on a receiving sequence of sampled values

The invention relates to a phase detection method. A plurality of consecutive values of a receiving signal with a known sampling frequency fare received as a reaction to a transmitting signal having a known transmitting frequency f. Two differential values are determined, each coming from two consecutive values out of three consecutive values of the receiving signal. A phase real part and a phase imaginary part of the receiving signal are determined based on a linear relation between the phase real part, the phase imaginary part and the two differential values.

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Leipzig, Germany

Adam Kolany