| http://www.w3.org/ns/prov#value | - red signal includes determination of upper and lower envelopes Eup and Elow thereof (step 4), which are then analyzed to extract this signal component S1 from a noise component (step 6). [0064] If a signal component to be enhanced relative to a noise component is a periodic signal characterized by a specific asymmetric shape (i.e., each cycle (period) of the signal component contains a region incl
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