Active noise control system and method

An active noise control system for controlling a noise produced by a noise source, said system comprising:

• a primary acoustic sensor to sense a noise pattern and to produce a corresponding primary noise signal;
• at least one secondary acoustic sensor to sense a residual noise pattern and to produce at least one secondary noise signal corresponding to the residual noise pattern sensed by said at least one secondary acoustic sensor, respectively,
• wherein said at least one secondary acoustic sensor is separated from said noise source by a distance larger than a distance between said primary acoustic sensor and said noise source;
• and
• a controller functionally associated with an acoustic transducer and at least one estimator to produce a predicted noise signal,
• wherein the predicted noise signal includes an estimation of a predicted sample of at least one sampled signal of the primary noise signal and the secondary noise signal, which is successive to a current sample of the sampled signal, and wherein the estimator is to estimate the predicted sample by applying at least one non-linear estimation function to the current sample and to one or more samples preceding the current sample of the sampled signal,
• wherein said controller is adapted to produce a noise destructive pattern based on said primary noise signal and said at least one secondary noise signal and said predicted noise signal,
• and wherein the noise destructive pattern produced by the controller has a non-linear relationship to the noise pattern sensed by the primary acoustic sensor.