A method and device for extracting signal degradation features of an aircraft fuel pump
A feature extraction, fuel pump technology, applied in the field of aircraft fuel pump signal degradation feature extraction
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[0070] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0071] A kind of aircraft fuel pump signal degradation feature extraction method of the present invention, method realization comprises the following steps:
[0072] Step 1: Mathematical morphology processing; divide the collected fuel pressure data output by the aircraft fuel pump by the system working cycle as the step size, and divide the data x in each working cycle i As the basic processing unit; take the fuel pressure output x when the performance of the aircraft fuel pump...
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