Adaptive Algorithms for use with Digital Filters in Vibration Control.

Abstract

Digital filters can easily be used to alter signal flows. As long as the desired transfer function of the filter is causal, a great variety of responses is made possible by appropriate choice of filter coefficients. To make use of this property in vibration control, algorithms should automatically change the filter coefficients to meet any given objective. This paper describes a class of adaptive algorithms which search the gradient of a given performance function. In order to illustrate the requirements of adaptive structures, such as structurally conformed design, the feed-forward control environment serves as an example for applying these algorithms.