Patent ID: 11909751
Assignee: FOUNDATION OF SOONGSIL UNIVERSITY INDUSTRY COOPERATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. The anomaly detection apparatus of claim 7,
wherein the computation unit calculates the Mahalanobis distance by using following equation:

fMMD({circumflex over (X)})=√{square root over (({circumflex over (X)}−μ)cov−1({circumflex over (X)})({circumflex over (X)}−μ)T)}

where {circumflex over (X)} is the linear transformation data set having a plurality of projection points as elements, μ is the center point, cov−1({circumflex over (X)})=({circumflex over (X)}−μ)T({circumflex over (X)}−μ)/N, N is the number of samples of the measurement data, and T is a transposed matrix.