The invention discloses an active
noise reducing seat suitable for an express railway
business class. The active
noise reducing seat comprises a base, a back, a headrest,
reference noise sensors, error microphones, a
MIMO active
noise reduction controller and two loudspeakers, wherein the
reference noise sensors, the error microphones, the
MIMO active
noise reduction controller and the two loudspeakers are arranged in the moving range of the head of a passenger, on the back and the headrest. According to the active noise reducing seat disclosed by the invention, through a series of irrelative referring acoustic
modes, the obtained best
noise control mode is high in accuracy and better matched with a noisy mode in the express railway
business class; then a
target signal is sent according to the best
noise control mode, so that the
broadband noise reduction effect of noise in the express railway
business class is realized, and the
noise reduction effect is more obvious; and through continuously adjusting a sampling period, a self-adapting filter order and a convergence factor, a filter
weighting coefficient is modified in a self-adapting manner, so that under the premise that the
system is stable can be guaranteed, the convergence speed of the
system is increased, and the
noise control in a
broadband is achieved.