D.Ya. Sukhanov1, Amoon Khalil2

1,2 National Research Tomsk State University (Tomsk, Russia)

A method for obtaining three-dimensional acoustic images based on probing by a system of multiple transmitters and multiple receivers presented. The proposed placement of transmitters and receivers on a plane provides a low level of artifacts, despite the sparseness of the transmitting and receiving gratings. Signal processing based on multidimensional matched filtering. The use of wideband signals with linear frequency modulation makes it possible to obtain range resolution. The applicability of the method demonstrated on the results of numerical simulation and experimentally for the air environment. In the frequency range of 38-43 kHz, a spatial resolution of 8 mm achieved in the plane parallel to the sounding system.

Sukhanov D.Ya., Amoon Khalil. 3D acoustic imaging based on wideband probing by a system of multiple transmitters and multiple receivers (MIMO). Radiotekhnika. 2022. V. 86. № 12. P. 137−146. DOI: https://doi.org/10.18127/j00338486-202212-13 (In Russian)

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