Abstract

The invention relates to an ultrasonic measurement system comprising: a phased-array transmit antenna (1) comprising a plurality of ultrasonic transducers (PMUTs), a phased-array receive antenna (2), wherein the receive antenna (2) is distinct from the 5 transmit antenna (1), a control unit (3) configured to assign to each transducer of the transmit antenna (1) a signal with an individually adjustable phase value, wherein the phase values are defined by a transmit parameter matrix (P_TX), wherein the control unit (3) is further configured to transmit multiple orthogonal codes 10 (C₁, C₂, ..., Cₙ) simultaneously superimposed on the same frequency band, with each code assigned to a directional channel (K₁, K₂, ..., Kₙ), wherein the receive antenna (2) is configured to process received signals using a receive parameter matrix (P_RX) and to calculate for each directional channel a cross-correlation function (CCF) or a matched filter, 15 wherein the position of a reflecting object is determined from the plurality of CCFs.

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Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

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