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Frequency Domain Iterative Feedforward/Feedback Tuning for MIMO ANVC

Jian Luo, Sandor Veres
A new iterative feedback/feedforward tuning (IFFT) method is
presented for multiple-input multiple output control systems that
relies on efficient computation of the negative gradient of the
controller cost function in the frequency domain. The iterative
method is using only one experiment per iteration and it is
therefore suitable for realtime implementation for periodic
adjustment of the controller. The new method has the added advantage
of its suitability for enhanced disturbance rejection tuning in the
frequency domain. The primary target application area of the
presented method is self-tuning feedback control in active vibration
and noise control (AVNC).
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