Multi-functional active noise control system on headrest of airplane seat

This work describes a multi-functional active noise control (ANC) system installation in an airplane seat. Most researchers in the field have focused on systems that cancel narrowband noise on headrests owing to the causality constraint of ANC system. Therefore, ANC systems in seats have limited performance. In this paper, an ANC system is designed for an airplane seat and the electronic delay of the ANC system is reduced to meet the causality...