公开(公告)号：US20220322976A1

公开(公告)日：2022-10-13

申请号：US17708892

申请日：2022-03-30

Applicant: DexCom, Inc.

Inventor： Shwetha R. Edla ,  Rasoul Yousefi ,  Neda Ehtiati ,  Ghazaleh R. Esmaili

IPC: A61B5/145 ,  A61B5/00

Abstract: In accordance with a system and/or method for monitoring an analyte concentration, a sensor signal indicative of an analyte concentration in a host may be received from an analyte sensor. The sensor signal may be filtered using a Kalman filter having process noise with a process covariance and measurement noise with a measurement covariance. The filtering may include updating a value associated with at least one of the process covariance and the measurement covariance using a value associated with one or more parameters employed in a model of the Kalman filter. A filtered sensor signal representative of the analyte concentration in the host may be output from the Kalman filter.