The present invention provides an apparatus for identification and /or separation of complex composite signals into its deterministic and noisy components which comprises source means for obtaining a signal to be identified and/or separated from suitable sensors appropriately located in said apparatus/equipment;means for digitizing the said composite signal, obtained as sequential or time-series data relating to a variation in a system property and various computing means . The apparatus has application in a variety of fields where digitalized data is made available via an apparatus which converts the monitored signals
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