0505584 20240111141020.120190618235959.9 85070811440 000501745100030 10.1109/IWSSIP.2019.8787283 6 s. P cav_un_epca*0505583978-1-7281-3253-2Signal Processing II195-201PiscatawayIEEE2019ŽagarDragoRimac-DrljeSnježanaMartinovićGoranGalićIrenaVranješDenisHabijanMarija QRD RLS algorithm exponential forgetting double precision arithmetic regression model hand detection ultrasound cav_un_auth*0330517 Likhonina Raissa UTIA-B Zpracování signálů Department of Signal Processing ZS ZS Department of Signal Processing CZ Ústav teorie informace a automatizace AV ČR, v. v. i. textový soubor http://library.utia.cas.cz/separaty/2019/ZS/likhonina-0505584.pdf 246M cav_un_auth*0374054 8A18013 GA MŠk The work is focused on algorithmic technique for detection of hand presence and distance from a hand to a device transmitting ultrasound signals. The described method is based on QRD Recursive Least Squares (RLS) algorithm with double precision arithmetic and exponential forgetting (EF). Modelling of a hand detection problem is based on linear Finite Impulse Response (FIR) based regression models and performed using MATLAB tools. The modelled system comprises an environment model, a hand model and an identification block. A series of experiments testing both time-invariant and time-variant environment models and time-variant hand models show the importance of a correct choice of the EF factor. The experiments prove the accuracy of the algorithm and the possibility to calculate a distance from the hand to the device. The final version of the algorithm is supposed to be implemented on the embedded Xilinx Zynq device equipped with a microphone and ultrasound transducers. cav_un_auth*0376062 International Conference on Systems, Signals and Image Processing 2019 (IWSSIP 2019) 20190605 20190607 Osijek HR BB 10000 10100 10103 2020 1 PR RVO:67985556 http://hdl.handle.net/11104/0297088 S 2 Article Evolutionary Biology|Genetics Heredity 2019 85070811440 SCOPUS PUBMED 000501745100030 WOS textový soubor 246M cav_un_epca*0505583 Proceedings of IWSSIP 2019 Signal Processing II IEEE 2019 Piscataway 195 201 978-1-7281-3253-2 340 Žagar Drago 340 Rimac-Drlje Snježana 340 Martinović Goran 340 Galić Irena 340 Vranješ Denis 340 Habijan Marija