Koninklijke Philips Corporation N.V.

Shaoxiong Sun

Ronaldus Maria Aarts

Rick Bezemer

Wouter Herman Peeters

Xi Long

In a sensor system (), output signals of at least one PPG sensor () are processed to derive a modified pulse amplitude variation (PAV) value, being modified to take account of a baseline variation of the PPG sensor output signal. In particular, the modified PAV is derived through performing a modification step () in which either: a baseline variation of the PPG sensor output is derived and combined with a previously derived PAV, or, a PPG sensor output is first processed to perform baseline variation compensation, in advance of then deriving a PAV from the compensated signal.

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Eindhoven, Netherlands

Shaoxiong Sun