N2 - The work presents the results of experimental study on the possibilities of determining the source of an ultrasonic signal in two-dimensional space (distance, horizontal angle). During the research the team used a self-constructed linear array of MEMS microphones. Knowledge in the field of sonar systems was utilized to analyse and design a location system based on a microphone array. Using the above mentioned transducers and broadband ultrasound sources allows a quantitative comparison of estimation of the location of an ultrasonic wave source with the use of broadband modulated signals (modelled on bats' echolocation signals) to be performed. During the laboratory research the team used various signal processing algorithms, which made it possible to select an optimal processing strategy, where the sending signal is known. L1 - http://journals.pan.pl/Content/101428/PDF/05_paper.pdf L2 - http://journals.pan.pl/Content/101428 PY - 2014 IS - No 1 EP - 50 DO - 10.2478/aoa-2014-0005 KW - beamforming KW - air-coupled ultrasounds KW - DSP KW - bat signals KW - direction of arrival A1 - Herman, Krzysztof A1 - Gudra, Tadeusz A1 - Furmankiewicz, Joanna PB - Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics VL - vol. 39 DA - 2014 T1 - Digital Signal Processing Approach in Air Coupled Ultrasound Time Domain Beamforming SP - 37 UR - http://journals.pan.pl/dlibra/publication/edition/101428 T2 - Archives of Acoustics