Jiri Tichy and his impact on the field of active noise control

2020 
Jiri Tichy was integrally involved in a number of cutting-edge research areas in acoustics, which gave him keen insights as to where meaningful contributions to the field of acoustics could be made. These insights and connections enabled him to successfully mentor numerous students in these areas by involving them in significant research and introducing them to key contacts. One such area was the field of active noise control, where he was both a mentor and friend to the author. Jiri became actively involved in active noise control in the 1980s, at the time when active control was reborn in the digital age and began to explode as a research area. During this time, the author had the privilege of working with Jiri in this field and being mentored by him. This paper will overview some of the research by the author that was either directly or indirectly influenced by Jiri in his role as both mentor and colleague. Two such research areas include the technique of passive real-time system identification, and the method of actively minimizing acoustic energy density as a means of achieving more global attenuation of the sound field.
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