Method to extract target signals of a known type from raw...

Details Method to extract target signals of a known type from raw... Method to extract target signals of a known type from raw...

G - Physics

06

F

G06F 17/10 (2006.01) G01D 3/032 (2006.01) G01N 15/10 (2006.01) G01N 37/00 (2006.01) G01S 7/292 (2006.01) G01S 7/527 (2006.01) G06F 17/14 (2006.01)

Patent

CA 2639710

A signal analysis method extracts transient target signals of known type from a raw data source signal that contains an unknown number of target signals. The method can enhance the analysis of data obtained from in-line oil--debris sensors. The method comprises steps of: defining signatures of the known target signal, and of at least one of the intrinsic noise and interfering signals; performing a mathematical transform that decomposes the raw data into distinct data sets; using the signal signatures to identify and nullify the data sets containing noise and interfering signal signatures; using the target signal signatures to identify the data sets containing target signal components, or may further use a thresholding rule to remove intrinsic noise from said data sets, and finally applying the inverse transform to the processed data sets in order to reconstruct an enhanced output signal.

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