(eng): The research is devoted to the QRD RLS Lattice algorithm supplemented with hypothesis testing and based on a noise cancellation technique. It is based on Bayesian approach for system identification. The approach has been applied for a hand detection problem solution using real data from an ultrasound microphone. The algorithm was implemented in parallel on the HW platform of Xilinx Zynq Ultrasound+ device with a quad-core ARM Cortex A53 processor and FPGA programmable logic.