This research introduces unfamiliarity index (UFI) that calculated from the FFT results of the short term timeline acceleration responses. If this algorithm, which can detect an abnormal behavior from the maximum constant signal, is used to the terminal sensors of a structure, more accurate safety control criteria will be prepared efficiently.
Byeongcheol Kim, Kitae Park, Taeheon Kim, and Dongwoo Seo, "Abnormal behavior detection algorithm of infra-structure using unfamiliarity index," Proc. SPIE 10170, Health Monitoring of Structural and Biological Systems 2017, 101702R (Presented at SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring: March 29, 2017; Published: 5 April 2017); https://doi.org/10.1117/12.2256981.
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