Patent ID: 7194317
Filing Date: 2007-03-20
Classification: G05B

Abstract:
1. A method of producing perturbation signals adaptable to exciting a predetermined number of input variables of a system, in order to test that system for the purpose of obtaining models for the synthesis of a model-based controller, a method comprising the steps of: a) providing input parameters of the system; b) generating a plurality of binary multi-frequency (BMF) signals based on the input parameters; c) calculating the frequency spectra of the BMF signals generated in step (b); d) selecting one of the BMF signals of the set of BMF signals of step (b), the frequency spectrum of the one selected BMF signal most closely matching a desired frequency spectrum specified by the input parameters; e) using the selected BMF signal of step (d) as a first perturbation signal for system testing; and f) shifting the selected BMF signal of step (d) by a delay time amount of samples to create a delayed copy of the selected BMF signal in step (e) to be used as a second perturbation signal for system testing.