Patent ID: 6901108
Filing Date: 2005-05-31
Classification: G05B,H04L

Abstract:
1. An adaptive controller comprising: a dither signal generator configured to generate a sequence of uncorrelated dither signals for each of a plurality of control signals and to apply the dither signals in parallel to all the control signals; a performance measurement apparatus configured to measure a performance measure corresponding to each parallel application of control signals through the sequences and to store the resulting sequence of performance measurements; a correlator configured to correlate the sequence of performance measures with each of the dither sequences to form a sequence of correlator outputs for each of the control signals; an integrator configured to integrate each of the sequences of correlator output sequences; and a control signal update device configured to add to or subtract from the control signal values and the values of their corresponding dither signal, the adding or subtracting depending upon the value of the corresponding integrated correlator output.