CPC G01H 1/006 (2013.01) [G01M 13/045 (2013.01)] | 14 Claims |
1. A method for monitoring at least one rotating machine of an aircraft, the mehod comprising the following steps:
acquiring at least one measurement signal of the rotating machine by an acquisition module,
estimating instantaneous frequencies of sinusoidal components of the at least one measurement signal by an estimation module,
executing by a calculation module several successive iterations, each of which comprising:
updating complex envelopes of the sinusoidal components,
updating parameters of a noise model of the at least one measurement signal from the complex envelopes having been updated,
performing a convergence test as to whether the noise model converges from the preceding iteration to the current iteration, to:
in the negative, redo a new iteration,
in the affirmative, perform a calculation of the complex envelopes from the iterations carried out,
updating at each iteration regularisation parameters of the noise model by the calculation module from the complex envelopes having been updated,
and, updating, at each iteration, an auxiliary decoupling variable of the complex envelopes of the components between them in the noise model by the calculation module from the complex envelopes having been updated and from the parameters of the noise model having been updated.
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